/*
Theme Name: 안전제일
Theme URI:
Author: 안전제일
Author URI:
Description: 건설 안전공학 전문 플랫폼 — 도구·신뢰 페이지 포함
Version: 2.0
License: GNU General Public License v2 or later
Text Domain: anjeonjeil
*/

/* =====================
   RESET & BASE
   ===================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a0f1a;
    --bg-secondary: #0f1624;
    --bg-card: #141c2e;
    --accent: #00e87b;
    --accent-hover: #00c96a;
    --text-primary: #e8ecf1;
    --text-secondary: #8a94a6;
    --border: rgba(255, 255, 255, 0.08);
    --max-width: 1140px;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Pretendard Variable', 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    user-select: none;
    -webkit-user-select: none;
}

img {
    max-width: 100%;
    height: auto;
    -webkit-user-drag: none;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s;
}

ul {
    list-style: none;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* =====================
   HEADER
   ===================== */
#site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 15, 26, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: background 0.3s;
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-logo {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.site-logo span {
    color: var(--accent);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.site-nav a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.site-nav a:hover {
    color: var(--accent);
}

.nav-contact {
    color: var(--text-secondary) !important;
    font-size: 0.875rem !important;
    padding: 9px 4px;
    transition: color 0.2s !important;
}

.nav-contact:hover {
    color: var(--text-primary) !important;
}

/* =====================
   SECTIONS COMMON
   ===================== */
section {
    padding: 100px 0;
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 600px;
}

/* =====================
   HERO SECTION
   ===================== */
#hero {
    padding-top: 168px;
    padding-bottom: 120px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

#hero::before {
    content: '';
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 900px;
    height: 900px;
    background: radial-gradient(circle, rgba(0, 232, 123, 0.07) 0%, transparent 65%);
    pointer-events: none;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 232, 123, 0.1);
    border: 1px solid rgba(0, 232, 123, 0.25);
    border-radius: 100px;
    padding: 7px 16px;
    font-size: 0.825rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 32px;
}

.hero-badge-dot {
    width: 7px;
    height: 7px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
}

.hero-title {
    font-size: clamp(2.4rem, 5.5vw, 3.8rem);
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: -1.5px;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.hero-title .highlight {
    color: var(--accent);
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 620px;
    margin: 0 auto 48px;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #0a0f1a;
    font-size: 1rem;
    font-weight: 700;
    padding: 16px 32px;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 600;
    padding: 16px 28px;
    border-radius: 12px;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* =====================
   PARADIGM SECTION
   ===================== */
#paradigm {
    background: var(--bg-secondary);
}

.paradigm-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    margin-top: 56px;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.paradigm-step {
    background: var(--bg-card);
    padding: 40px 32px;
    transition: background 0.2s;
}

.paradigm-step:hover {
    background: #1a2236;
}

.paradigm-step.active {
    background: rgba(0, 232, 123, 0.06);
    border: 1px solid rgba(0, 232, 123, 0.2);
}

.step-num {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.step-title {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.paradigm-step.active .step-title {
    color: var(--accent);
}

.step-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* =====================
   PROBLEM SECTION
   ===================== */
#problem {
    background: var(--bg-primary);
}

.compare-table {
    margin-top: 56px;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.compare-header {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.compare-header div {
    padding: 20px 28px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.compare-header div:last-child {
    color: var(--accent);
}

.compare-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
    transition: background 0.2s;
}

.compare-row:hover {
    background: var(--bg-card);
}

.compare-row:last-child {
    border-bottom: none;
}

.compare-row div {
    padding: 18px 28px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.compare-row div:first-child {
    color: var(--text-primary);
    font-weight: 600;
}

.compare-row div.bad {
    color: #ff6b6b;
}

.compare-row div.good {
    color: var(--accent);
}

/* =====================
   SOLUTION SECTION
   ===================== */
#solution {
    background: var(--bg-secondary);
}

.solution-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 56px;
}

.solution-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 28px;
    position: relative;
    transition: transform 0.25s, border-color 0.25s;
}

.solution-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 232, 123, 0.3);
}

.solution-num {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--accent);
    margin-bottom: 20px;
}

.solution-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.solution-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.solution-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.75;
}

/* =====================
   SERVICE SECTION
   ===================== */
#service {
    background: var(--bg-primary);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 56px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px 32px;
    transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 232, 123, 0.35);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
}

.service-icon {
    width: 52px;
    height: 52px;
    background: rgba(0, 232, 123, 0.1);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.service-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.service-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* =====================
   WHY US SECTION
   ===================== */
#why-us {
    background: var(--bg-secondary);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 56px;
}

.why-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 28px;
    transition: border-color 0.25s;
}

.why-card:hover {
    border-color: rgba(0, 232, 123, 0.3);
}

.why-num {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 12px;
}

.why-icon {
    font-size: 1.6rem;
    margin-bottom: 16px;
    display: block;
}

.why-title {
    font-size: 0.975rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
    line-height: 1.45;
}

.why-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.75;
}

/* =====================
   URGENCY SECTION
   ===================== */
#urgency {
    background: var(--bg-primary);
}

.urgency-list {
    margin-top: 56px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.urgency-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px 28px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: border-color 0.2s;
}

.urgency-item:hover {
    border-color: rgba(0, 232, 123, 0.3);
}

.urgency-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    background: rgba(0, 232, 123, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.urgency-content .urgency-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.urgency-content .urgency-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* =====================
   CTA SECTION
   ===================== */
#cta {
    background: var(--bg-secondary);
    text-align: center;
    position: relative;
    overflow: hidden;
}

#cta::before {
    content: '';
    position: absolute;
    bottom: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 232, 123, 0.06) 0%, transparent 65%);
    pointer-events: none;
}

.cta-title {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -0.5px;
    margin-bottom: 20px;
}

.cta-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 540px;
    margin: 0 auto 48px;
    line-height: 1.8;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* =====================
   FOOTER
   ===================== */
#site-footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
    padding: 64px 0 32px;
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand .site-logo {
    font-size: 1.3rem;
    margin-bottom: 16px;
    display: block;
}

.footer-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 2;
}

.footer-nav {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 16px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-copyright {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal a {
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.footer-legal a:hover {
    color: var(--text-primary);
}

/* =====================
   FADE IN ANIMATION
   ===================== */
.fade-in {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* =====================
   MOBILE RESPONSIVE
   ===================== */
@media (max-width: 768px) {
    section {
        padding: 72px 0;
    }

    .site-nav {
        display: none;
    }

    .mobile-cta {
        display: inline-flex;
    }

    .paradigm-steps {
        grid-template-columns: 1fr;
    }

    .compare-header,
    .compare-row {
        grid-template-columns: 1.2fr 1fr 1fr;
    }

    .compare-header div,
    .compare-row div {
        padding: 14px 16px;
        font-size: 0.8rem;
    }

    .solution-steps,
    .service-grid,
    .why-grid {
        grid-template-columns: 1fr;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-nav {
        align-items: flex-start;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .btn-primary,
    .btn-secondary {
        justify-content: center;
    }
}

/* =====================
   KAKAO BUTTON
   ===================== */
.btn-kakao {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, #FEE500 0%, #F9D300 100%);
    color: #191919;
    font-size: 1rem;
    font-weight: 800;
    padding: 16px 32px;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(254, 229, 0, 0.35), 0 1px 4px rgba(0,0,0,0.15);
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
    white-space: nowrap;
    letter-spacing: -0.2px;
}

.btn-kakao svg {
    flex-shrink: 0;
    filter: drop-shadow(0 1px 1px rgba(0,0,0,0.12));
}

.btn-kakao:hover {
    background: linear-gradient(135deg, #FFE830 0%, #FEE500 100%);
    color: #191919;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(254, 229, 0, 0.45), 0 2px 6px rgba(0,0,0,0.18);
}

.btn-kakao:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(254, 229, 0, 0.3);
}

/* 푸터 문의 버튼 (아웃라인 소형) */
.btn-outline-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-decoration: none;
    transition: border-color 0.2s, color 0.2s;
    width: 100%;
}

.btn-outline-sm:hover {
    border-color: rgba(0,232,123,0.35);
    color: var(--text-primary);
}

/* =====================
   DROPDOWN NAV
   ===================== */
.nav-dropdown { position: relative; }

.nav-dropdown-trigger {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0;
    transition: color 0.2s;
    font-family: inherit;
}

.nav-dropdown-trigger:hover,
.nav-dropdown-trigger.active { color: var(--accent); }

.nav-dropdown-trigger svg { transition: transform 0.2s; }
.nav-dropdown:hover .nav-dropdown-trigger svg,
.nav-dropdown-trigger.active svg { transform: rotate(180deg); }

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 16px);
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 8px;
    min-width: 240px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
    z-index: 1001;
    box-shadow: 0 20px 48px rgba(0,0,0,0.5);
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown-menu.open {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 14px;
    border-radius: 8px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: background 0.15s, color 0.15s;
}

.nav-dropdown-menu a:hover {
    background: rgba(0,232,123,0.08);
    color: var(--accent);
}

.nav-dropdown-divider {
    height: 1px;
    background: var(--border);
    margin: 6px 8px;
}

/* =====================
   MOBILE MENU
   ===================== */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform 0.25s, opacity 0.25s;
}

.mobile-menu-btn.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-menu-btn.active span:nth-child(2) { opacity: 0; }
.mobile-menu-btn.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    padding: 0 16px;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.2s;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mobile-nav.open {
    max-height: 700px;
    padding: 12px 16px 20px;
}

.mobile-nav > a {
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: block;
    transition: color 0.2s;
}

.mobile-nav > a:hover { color: var(--accent); }

.mobile-nav-group { margin: 6px 0; }

.mobile-nav-label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 8px 12px 4px;
}

.mobile-nav-group a {
    display: block;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.mobile-nav-group a:hover { color: var(--accent); }

/* =====================
   FOOTER MULTI-COLUMN
   ===================== */
.footer-top {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
    gap: 40px;
    margin-bottom: 48px;
    align-items: start;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col-title {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.footer-col a {
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.footer-col a:hover { color: var(--accent); }

/* =====================
   INNER PAGE HERO
   ===================== */
.page-hero {
    padding: 140px 0 72px;
    text-align: center;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: -150px;
    left: 50%;
    transform: translateX(-50%);
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(0,232,123,0.05) 0%, transparent 65%);
    pointer-events: none;
}

.page-hero-badge {
    display: inline-block;
    background: rgba(0,232,123,0.1);
    border: 1px solid rgba(0,232,123,0.25);
    border-radius: 100px;
    padding: 5px 16px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 20px;
}

.page-hero-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 900;
    letter-spacing: -0.5px;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.page-hero-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.8;
}

/* =====================
   TOOLS HUB
   ===================== */
.tools-section { padding: 80px 0; }
.tools-section:nth-child(even) { background: var(--bg-secondary); }

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 36px 28px;
    transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
    display: flex;
    flex-direction: column;
}

.tool-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0,232,123,0.35);
    box-shadow: 0 24px 48px rgba(0,0,0,0.35);
}

.tool-card-badge {
    display: inline-block;
    background: rgba(0,232,123,0.1);
    color: var(--accent);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 100px;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
    align-self: flex-start;
}

.tool-card-badge.main {
    background: rgba(0,232,123,0.15);
    border: 1px solid rgba(0,232,123,0.4);
}

.tool-card-icon { font-size: 2.4rem; margin-bottom: 16px; }
.tool-card-title { font-size: 1.15rem; font-weight: 700; color: var(--text-primary); margin-bottom: 10px; }
.tool-card-desc { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.75; flex: 1; margin-bottom: 24px; }

.tool-card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    font-size: 0.875rem;
    font-weight: 600;
    transition: gap 0.2s;
}

.tool-card:hover .tool-card-link { gap: 12px; }

.main-tool-card {
    background: linear-gradient(135deg, rgba(0,232,123,0.06) 0%, rgba(0,232,123,0.02) 100%);
    border-color: rgba(0,232,123,0.25);
    grid-column: 1 / -1;
    flex-direction: row;
    align-items: center;
    gap: 40px;
}

.main-tool-card:hover { border-color: rgba(0,232,123,0.5); }
.main-tool-card .tool-card-icon { font-size: 4rem; margin-bottom: 0; flex-shrink: 0; }
.main-tool-content { flex: 1; }

/* =====================
   ARTICLES GRID
   ===================== */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    margin-top: 36px;
}

.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
    transition: border-color 0.2s, transform 0.2s;
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.article-card:hover {
    border-color: rgba(0,232,123,0.25);
    transform: translateY(-3px);
}

.article-card-icon {
    width: 38px;
    height: 38px;
    min-width: 38px;
    background: rgba(0,232,123,0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.article-card-title {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 5px;
    line-height: 1.45;
}

.article-card-tag {
    font-size: 0.72rem;
    color: var(--accent);
    font-weight: 600;
}

/* =====================
   FEATURED GUIDES (홈 대표 글 카드)
   ===================== */
#featured-guides {
    background: var(--bg-secondary);
    padding: 100px 0;
}

.featured-guides-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-top: 48px;
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
}

.guide-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 28px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    transition: background 0.18s;
}

.featured-guides-grid .guide-card:last-child {
    border-bottom: none;
}

.guide-card:hover {
    background: rgba(0,232,123,0.04);
}

.guide-card-tag {
    flex-shrink: 0;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent);
    background: rgba(0,232,123,0.1);
    padding: 3px 10px;
    border-radius: 100px;
    white-space: nowrap;
}

.guide-card-title {
    flex: 1;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.45;
}

.guide-card-arrow {
    flex-shrink: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: color 0.18s, transform 0.18s;
}

.guide-card:hover .guide-card-arrow {
    color: var(--accent);
    transform: translateX(3px);
}

@media (max-width: 600px) {
    .guide-card {
        padding: 18px 20px;
        gap: 12px;
    }
    .guide-card-tag {
        display: none;
    }
}

/* =====================
   TOOLS HIGHLIGHT (홈 도구 소개 섹션)
   ===================== */
#tools-highlight {
    background: var(--bg-primary);
    padding: 100px 0;
}

/* =====================
   INFO CONTEXT (안내 섹션)
   ===================== */
#info-context {
    background: var(--bg-primary);
    padding: 100px 0;
}

/* =====================
   TOOL APP COMMON
   ===================== */
.tool-app {
    background: var(--bg-primary);
    padding: 72px 0;
    user-select: text;
    -webkit-user-select: text;
}

.tool-app input,
.tool-app select,
.tool-app textarea,
.tool-app label {
    user-select: text;
    -webkit-user-select: text;
}

.tool-container { max-width: 860px; margin: 0 auto; padding: 0 24px; }
.tool-container-wide { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

.tool-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 36px;
    margin-bottom: 24px;
}

.tool-panel-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tool-panel-title-icon {
    width: 36px;
    height: 36px;
    background: rgba(0,232,123,0.1);
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

/* =====================
   CHECKLIST APP
   ===================== */
.checklist-progress-wrap {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 28px 36px;
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 32px;
}

.checklist-progress-stats { display: flex; gap: 32px; flex-shrink: 0; }

.checklist-stat { text-align: center; }

.checklist-stat-num { font-size: 2rem; font-weight: 900; color: var(--accent); line-height: 1; }
.checklist-stat-label { font-size: 0.75rem; color: var(--text-secondary); margin-top: 4px; }

.checklist-progress-bar-wrap { flex: 1; }

.checklist-progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.checklist-progress-bar {
    height: 8px;
    background: rgba(255,255,255,0.06);
    border-radius: 100px;
    overflow: hidden;
}

.checklist-progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 100px;
    transition: width 0.4s ease;
    width: 0%;
}

.checklist-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.checklist-tab {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 7px 18px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: inherit;
}

.checklist-tab:hover { border-color: rgba(0,232,123,0.3); color: var(--text-primary); }
.checklist-tab.active { background: rgba(0,232,123,0.1); border-color: rgba(0,232,123,0.4); color: var(--accent); }

.checklist-tab-count {
    background: rgba(0,232,123,0.15);
    color: var(--accent);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 1px 7px;
    border-radius: 100px;
}

.checklist-category { display: none; }
.checklist-category.active { display: block; }

.checklist-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px 20px;
    border-radius: 12px;
    border: 1px solid transparent;
    transition: background 0.15s, border-color 0.15s;
    cursor: pointer;
    margin-bottom: 8px;
}

.checklist-item:hover { background: rgba(255,255,255,0.03); }
.checklist-item.checked { background: rgba(0,232,123,0.04); border-color: rgba(0,232,123,0.15); }

.checklist-checkbox {
    width: 22px;
    height: 22px;
    min-width: 22px;
    border: 2px solid var(--border);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    margin-top: 2px;
    background: transparent;
}

.checklist-item.checked .checklist-checkbox { background: var(--accent); border-color: var(--accent); }

.checklist-checkmark { display: none; color: #0a0f1a; font-size: 0.75rem; font-weight: 900; }
.checklist-item.checked .checklist-checkmark { display: block; }

.checklist-item-text {
    flex: 1;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    transition: color 0.2s;
}

.checklist-item.checked .checklist-item-text {
    color: var(--text-primary);
    text-decoration: line-through;
    opacity: 0.6;
}

.checklist-item-risk {
    font-size: 0.72rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 100px;
    flex-shrink: 0;
}

.risk-high { background: rgba(255,107,107,0.15); color: #ff6b6b; }
.risk-mid  { background: rgba(255,178,0,0.15); color: #ffb200; }
.risk-low  { background: rgba(0,232,123,0.15); color: var(--accent); }

.checklist-actions {
    display: flex;
    gap: 12px;
    margin-top: 28px;
    flex-wrap: wrap;
}

.btn-tool {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 11px 20px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.btn-tool:hover { border-color: rgba(0,232,123,0.3); color: var(--accent); }
.btn-tool.danger:hover { border-color: rgba(255,107,107,0.4); color: #ff6b6b; }

/* =====================
   RISK ASSESSMENT
   ===================== */
.risk-question {
    padding: 24px 0;
    border-bottom: 1px solid var(--border);
}
.risk-question:last-child { border-bottom: none; }

.risk-q-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 1px;
    margin-bottom: 10px;
}

.risk-q-text {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.5;
}

.risk-options { display: flex; gap: 10px; flex-wrap: wrap; }

.risk-option {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 20px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.risk-option:hover { border-color: rgba(0,232,123,0.3); color: var(--text-primary); }

.risk-option.selected {
    background: rgba(0,232,123,0.08);
    border-color: rgba(0,232,123,0.4);
    color: var(--accent);
    font-weight: 600;
}

.risk-result {
    display: none;
    border-radius: 20px;
    padding: 40px;
    margin-top: 32px;
    text-align: center;
    border: 2px solid;
}

.risk-result.low { background: rgba(0,232,123,0.06); border-color: rgba(0,232,123,0.3); }
.risk-result.mid { background: rgba(255,178,0,0.06); border-color: rgba(255,178,0,0.3); }
.risk-result.high { background: rgba(255,107,107,0.06); border-color: rgba(255,107,107,0.3); }

.risk-result-level {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.risk-result.low .risk-result-level { color: var(--accent); }
.risk-result.mid .risk-result-level { color: #ffb200; }
.risk-result.high .risk-result-level { color: #ff6b6b; }

.risk-result-title { font-size: 1.8rem; font-weight: 900; color: var(--text-primary); margin-bottom: 16px; }

.risk-result-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto 28px;
    line-height: 1.8;
}

.risk-result-tips {
    text-align: left;
    background: rgba(255,255,255,0.04);
    border-radius: 12px;
    padding: 20px 24px;
    margin-bottom: 28px;
}

.risk-result-tips li {
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding: 4px 0;
    list-style: disc;
    margin-left: 20px;
    line-height: 1.6;
}

/* =====================
   PPE GUIDE
   ===================== */
.ppe-selector {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 14px;
    margin-bottom: 36px;
}

.ppe-work-btn {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px 16px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.ppe-work-btn:hover { border-color: rgba(0,232,123,0.3); transform: translateY(-3px); }
.ppe-work-btn.active { background: rgba(0,232,123,0.08); border-color: rgba(0,232,123,0.4); }

.ppe-work-icon { font-size: 2rem; margin-bottom: 10px; display: block; }
.ppe-work-name { font-size: 0.85rem; font-weight: 600; color: var(--text-primary); }

.ppe-result { display: none; }
.ppe-result.active { display: block; }

.ppe-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 14px;
    margin-top: 24px;
}

.ppe-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px 14px;
    text-align: center;
    transition: border-color 0.2s;
}

.ppe-item.required { border-color: rgba(0,232,123,0.3); background: rgba(0,232,123,0.04); }
.ppe-item.recommended { border-color: rgba(255,178,0,0.2); background: rgba(255,178,0,0.03); }

.ppe-item-icon { font-size: 2rem; margin-bottom: 10px; display: block; }
.ppe-item-name { font-size: 0.85rem; font-weight: 600; color: var(--text-primary); margin-bottom: 6px; }

.ppe-item-tag {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 100px;
}

.ppe-item.required .ppe-item-tag { background: rgba(0,232,123,0.15); color: var(--accent); }
.ppe-item.recommended .ppe-item-tag { background: rgba(255,178,0,0.15); color: #ffb200; }

/* =====================
   ANOMALY LOG
   ===================== */
.anomaly-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full { grid-column: 1 / -1; }

.form-label { font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); }

.form-input,
.form-select,
.form-textarea {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 11px 14px;
    font-size: 0.9rem;
    color: var(--text-primary);
    font-family: inherit;
    transition: border-color 0.2s;
    outline: none;
    user-select: text;
    -webkit-user-select: text;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus { border-color: rgba(0,232,123,0.4); }

.form-input::placeholder,
.form-textarea::placeholder { color: var(--text-secondary); opacity: 0.6; }

.form-select option { background: var(--bg-card); color: var(--text-primary); }
.form-textarea { resize: vertical; min-height: 90px; }

.anomaly-list { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }

.anomaly-entry {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px 24px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
    transition: border-color 0.2s;
}

.anomaly-entry:hover { border-color: rgba(255,255,255,0.15); }

.anomaly-severity-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-top: 6px;
    flex-shrink: 0;
}

.severity-low .anomaly-severity-dot { background: var(--accent); }
.severity-mid .anomaly-severity-dot { background: #ffb200; }
.severity-high .anomaly-severity-dot { background: #ff6b6b; }

.anomaly-entry-body { flex: 1; }

.anomaly-entry-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}

.anomaly-entry-tag {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 100px;
    background: rgba(255,255,255,0.06);
    color: var(--text-secondary);
}

.anomaly-entry-location { font-size: 0.85rem; font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
.anomaly-entry-desc { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; }
.anomaly-entry-date { font-size: 0.75rem; color: var(--text-secondary); white-space: nowrap; }

.anomaly-delete-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
    padding: 2px;
    transition: color 0.2s;
    line-height: 1;
}

.anomaly-delete-btn:hover { color: #ff6b6b; }

.anomaly-empty { text-align: center; padding: 48px 24px; color: var(--text-secondary); font-size: 0.9rem; }
.anomaly-empty-icon { font-size: 2.5rem; margin-bottom: 12px; opacity: 0.4; }

/* =====================
   CONCRETE CALCULATOR
   ===================== */
.calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.calc-input-group { display: flex; flex-direction: column; gap: 6px; }
.calc-label { font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); }
.calc-label-sub { font-size: 0.72rem; color: var(--text-secondary); opacity: 0.7; }

.calc-input-wrap { position: relative; display: flex; align-items: center; }

.calc-input {
    flex: 1;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 11px 14px;
    padding-right: 56px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
    user-select: text;
    -webkit-user-select: text;
}

.calc-input:focus { border-color: rgba(0,232,123,0.4); }
.calc-unit { position: absolute; right: 14px; font-size: 0.8rem; color: var(--text-secondary); pointer-events: none; }

.calc-result-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.calc-result-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px 20px;
    text-align: center;
}

.calc-result-card.primary { background: rgba(0,232,123,0.06); border-color: rgba(0,232,123,0.3); }

.calc-result-label { font-size: 0.75rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 12px; }
.calc-result-value { font-size: 1.8rem; font-weight: 900; color: var(--text-primary); line-height: 1; margin-bottom: 4px; }
.calc-result-card.primary .calc-result-value { color: var(--accent); }
.calc-result-unit { font-size: 0.8rem; color: var(--text-secondary); }

.calc-formula {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px 24px;
    margin-top: 20px;
}

.calc-formula-title {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.calc-formula-eq {
    font-size: 0.9rem;
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
    line-height: 1.8;
    user-select: text;
    -webkit-user-select: text;
}

.calc-safety {
    display: flex;
    gap: 10px;
    padding: 16px 20px;
    border-radius: 12px;
    margin-top: 16px;
    align-items: flex-start;
}

.calc-safety.ok { background: rgba(0,232,123,0.06); border: 1px solid rgba(0,232,123,0.2); }
.calc-safety.warn { background: rgba(255,178,0,0.06); border: 1px solid rgba(255,178,0,0.2); }
.calc-safety.danger { background: rgba(255,107,107,0.06); border: 1px solid rgba(255,107,107,0.2); }

.calc-safety-icon { font-size: 1.2rem; flex-shrink: 0; margin-top: 1px; }
.calc-safety-text { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; }
.calc-safety-text strong { font-weight: 700; }
.calc-safety.ok .calc-safety-text strong { color: var(--accent); }
.calc-safety.warn .calc-safety-text strong { color: #ffb200; }
.calc-safety.danger .calc-safety-text strong { color: #ff6b6b; }

/* =====================
   FAQ
   ===================== */
.faq-list { display: flex; flex-direction: column; gap: 10px; }

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    transition: border-color 0.2s;
}

.faq-item.open { border-color: rgba(0,232,123,0.25); }

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: color 0.2s;
    user-select: none;
    -webkit-user-select: none;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    font-family: inherit;
}

.faq-question:hover { color: var(--accent); }

.faq-chevron {
    width: 20px;
    height: 20px;
    min-width: 20px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, transform 0.3s;
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.faq-item.open .faq-chevron { transform: rotate(180deg); background: rgba(0,232,123,0.15); color: var(--accent); }

.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-item.open .faq-answer { max-height: 500px; }

.faq-answer-inner {
    padding: 16px 24px 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
    border-top: 1px solid var(--border);
}

.faq-category-label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--accent);
    margin: 40px 0 16px;
}

.faq-category-label:first-child { margin-top: 0; }

/* =====================
   CONTACT PAGE
   ===================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 40px;
    align-items: start;
}

.contact-info-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 36px;
}

.contact-info-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    margin-bottom: 28px;
}

.contact-info-item:last-child { margin-bottom: 0; }

.contact-info-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    background: rgba(0,232,123,0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.contact-info-title { font-size: 0.85rem; font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
.contact-info-desc { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }

.contact-form-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 36px;
}

/* =====================
   ABOUT PAGE
   ===================== */
.about-section { padding: 80px 0; }
.about-section:nth-child(even) { background: var(--bg-secondary); }

.profile-card {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 48px;
    align-items: start;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 48px;
}

.profile-avatar {
    width: 200px;
    height: 200px;
    background: rgba(0,232,123,0.1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    border: 1px solid rgba(0,232,123,0.2);
}

.profile-name { font-size: 1.8rem; font-weight: 900; color: var(--text-primary); margin-bottom: 8px; }
.profile-role { font-size: 1rem; color: var(--accent); font-weight: 600; margin-bottom: 24px; }
.profile-desc { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.9; margin-bottom: 28px; }

.profile-tags { display: flex; flex-wrap: wrap; gap: 8px; }

.profile-tag {
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 5px 14px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.career-list {
    display: flex;
    flex-direction: column;
    margin-top: 40px;
    position: relative;
}

.career-list::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: var(--border);
}

.career-item {
    display: flex;
    gap: 24px;
    padding: 24px 0;
    position: relative;
}

.career-dot {
    width: 32px;
    height: 32px;
    min-width: 32px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 2px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    z-index: 1;
    margin-top: 2px;
}

.career-item.current .career-dot { background: rgba(0,232,123,0.15); border-color: var(--accent); }

.career-year { font-size: 0.8rem; font-weight: 700; color: var(--accent); margin-bottom: 4px; }
.career-title { font-size: 1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
.career-desc { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }

/* =====================
   PRIVACY / GUIDE
   ===================== */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 72px 24px;
}

.legal-content h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 48px 0 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.legal-content h2:first-of-type { margin-top: 0; }

.legal-content h3 { font-size: 1rem; font-weight: 700; color: var(--text-primary); margin: 28px 0 10px; }

.legal-content p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.9; margin-bottom: 16px; }

.legal-content ul, .legal-content ol { padding-left: 20px; margin-bottom: 16px; }

.legal-content li { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.8; margin-bottom: 8px; }

.legal-content table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 0.875rem; }
.legal-content th, .legal-content td { border: 1px solid var(--border); padding: 12px 16px; color: var(--text-secondary); }
.legal-content th { background: var(--bg-card); color: var(--text-primary); font-weight: 600; }

.legal-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 48px;
    padding: 16px 20px;
    background: var(--bg-card);
    border-radius: 10px;
    border: 1px solid var(--border);
}

/* =====================
   MOBILE RESPONSIVE (ADDITIONS)
   ===================== */
@media (max-width: 900px) {
    .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
    .contact-grid { grid-template-columns: 1fr; }
    .profile-card { grid-template-columns: 1fr; }
    .profile-avatar { width: 100%; height: 140px; font-size: 3.5rem; }
}

@media (max-width: 768px) {
    .mobile-menu-btn { display: flex; }
    .site-nav { display: none; }
    .footer-top { grid-template-columns: 1fr; gap: 28px; }
    .main-tool-card { flex-direction: column; gap: 16px; }
    .anomaly-form-grid { grid-template-columns: 1fr; }
    .calc-grid { grid-template-columns: 1fr; }
    .calc-result-grid { grid-template-columns: 1fr 1fr; }
    .ppe-selector { grid-template-columns: repeat(3, 1fr); }
    .checklist-progress-wrap { flex-direction: column; align-items: flex-start; gap: 16px; }
    .checklist-progress-bar-wrap { width: 100%; }
}

@media (max-width: 480px) {
    .ppe-selector { grid-template-columns: repeat(2, 1fr); }
    .calc-result-grid { grid-template-columns: 1fr; }
}

/* =====================
   KOSHA HERO
   ===================== */
#kosha-hero {
    padding-top: 148px;
    padding-bottom: 64px;
    background: var(--bg-primary);
    text-align: center;
    position: relative;
    overflow: hidden;
}

#kosha-hero::before {
    content: '';
    position: absolute;
    top: -180px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0,232,123,0.06) 0%, transparent 65%);
    pointer-events: none;
}

.kosha-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0,232,123,0.1);
    border: 1px solid rgba(0,232,123,0.25);
    border-radius: 100px;
    padding: 7px 18px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 28px;
}

.kosha-hero-title {
    font-size: clamp(2rem, 4.5vw, 3.4rem);
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -1px;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.kosha-hero-sub {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 560px;
    margin: 0 auto 36px;
}

.kosha-search-form {
    display: flex;
    max-width: 640px;
    margin: 0 auto 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.kosha-search-form:focus-within {
    border-color: rgba(0,232,123,0.4);
    box-shadow: 0 0 0 3px rgba(0,232,123,0.07);
}

.kosha-search-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    padding: 16px 20px;
    font-size: 0.95rem;
    color: var(--text-primary);
    font-family: inherit;
    user-select: text;
    -webkit-user-select: text;
    min-width: 0;
}

.kosha-search-input::placeholder { color: var(--text-secondary); opacity: 0.7; }

.kosha-search-btn {
    background: var(--accent);
    color: #0a0f1a;
    border: none;
    padding: 0 28px;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
    transition: background 0.2s;
    flex-shrink: 0;
}

.kosha-search-btn:hover { background: var(--accent-hover); }

.kosha-popular-tags {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.popular-label {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.popular-tag {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 5px 14px;
    font-size: 0.82rem;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s;
}

.popular-tag:hover {
    border-color: rgba(0,232,123,0.35);
    color: var(--accent);
    background: rgba(0,232,123,0.06);
}

/* =====================
   KOSHA CATEGORIES
   ===================== */
#kosha-categories {
    padding: 32px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.kosha-cat-grid {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}

.kosha-cat-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px 22px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s;
    min-width: 90px;
}

.kosha-cat-btn:hover {
    border-color: rgba(0,232,123,0.35);
    background: rgba(0,232,123,0.04);
}

.kosha-cat-btn.active {
    border-color: rgba(0,232,123,0.5);
    background: rgba(0,232,123,0.08);
}

.cat-emoji { font-size: 1.4rem; line-height: 1; }

.cat-name {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-primary);
}

.kosha-cat-btn.active .cat-name { color: var(--accent); }

.cat-count {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.kosha-cat-btn.active .cat-count { color: var(--accent); opacity: 0.8; }

/* =====================
   KOSHA 최신 등록
   ===================== */
#kosha-new {
    padding: 56px 0;
    background: var(--bg-primary);
}

.kosha-fire-label {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.kosha-new-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.kosha-new-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    text-decoration: none;
    transition: border-color 0.2s, transform 0.2s;
}

.kosha-new-card:hover {
    border-color: rgba(0,232,123,0.35);
    transform: translateY(-4px);
}

.kosha-new-no {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
}

.kosha-new-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.5;
    flex: 1;
}

.kosha-new-date {
    font-size: 0.78rem;
    color: var(--text-secondary);
}

/* =====================
   KOSHA 전체 목록
   ===================== */
#kosha-list {
    padding: 56px 0;
    background: var(--bg-secondary);
}

.kosha-list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.kosha-list-title {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.kosha-list-count {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent);
    background: rgba(0,232,123,0.1);
    padding: 4px 14px;
    border-radius: 100px;
}

.kosha-list-wrap {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
}

.kosha-row {
    display: grid;
    grid-template-columns: 110px 140px 1fr 110px 76px;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    transition: background 0.15s;
}

.kosha-row:last-child { border-bottom: none; }
.kosha-row:hover { background: rgba(0,232,123,0.03); }

.kosha-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent);
    background: rgba(0,232,123,0.1);
    padding: 3px 10px;
    border-radius: 100px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.kosha-no {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.kosha-nm {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.45;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.kosha-date {
    font-size: 0.78rem;
    color: var(--text-secondary);
    text-align: right;
    white-space: nowrap;
}

.kosha-pdf {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--accent);
    background: rgba(0,232,123,0.08);
    border: 1px solid rgba(0,232,123,0.2);
    border-radius: 8px;
    padding: 5px 12px;
    text-decoration: none;
    transition: background 0.2s;
    white-space: nowrap;
}

.kosha-pdf:hover { background: rgba(0,232,123,0.18); }

.kosha-loading,
.kosha-empty {
    padding: 56px 24px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.kosha-no-key {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 40px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 2;
}

.kosha-no-key code {
    background: rgba(255,255,255,0.06);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
}

.kosha-pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 28px;
    flex-wrap: wrap;
}

.kosha-page-btn {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 14px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s;
}

.kosha-page-btn:hover { border-color: rgba(0,232,123,0.35); color: var(--accent); }
.kosha-page-btn.active { background: rgba(0,232,123,0.1); border-color: rgba(0,232,123,0.4); color: var(--accent); }

/* =====================
   BLOG POSTS (홈)
   ===================== */
#blog-posts {
    background: var(--bg-primary);
    padding: 80px 0;
}

/* =====================
   KOSHA MOBILE
   ===================== */
@media (max-width: 900px) {
    .kosha-new-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .kosha-cat-grid {
        justify-content: flex-start;
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 8px;
        -webkit-overflow-scrolling: touch;
    }
    .kosha-cat-btn { min-width: 80px; flex-shrink: 0; padding: 12px 14px; }

    .kosha-row {
        grid-template-columns: 1fr auto;
        grid-template-rows: auto auto auto;
        gap: 6px 12px;
        padding: 14px 16px;
    }
    .kosha-badge { grid-column: 1; grid-row: 1; }
    .kosha-no    { grid-column: 1; grid-row: 2; }
    .kosha-nm    { grid-column: 1 / 3; grid-row: 3; }
    .kosha-date  { grid-column: 2; grid-row: 1; text-align: right; }
    .kosha-pdf   { grid-column: 2; grid-row: 2; }
}

@media (max-width: 600px) {
    .kosha-new-grid { grid-template-columns: 1fr; }
    .kosha-search-btn { padding: 0 18px; font-size: 0.875rem; }
}