/* ============================================================
   LUCID 관세사무소 - Main Stylesheet
   Theme: Classic Monochrome — Bootstrap Palette + A2z Font
   ============================================================ */

/* ---- A2z 에이투지체 Web Font ---- */
@font-face {
    font-family: 'A2z';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2601-6@1.0/에이투지체-1Thin.woff2') format('woff2');
    font-weight: 100;
    font-display: swap;
}
@font-face {
    font-family: 'A2z';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2601-6@1.0/에이투지체-2ExtraLight.woff2') format('woff2');
    font-weight: 200;
    font-display: swap;
}
@font-face {
    font-family: 'A2z';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2601-6@1.0/에이투지체-3Light.woff2') format('woff2');
    font-weight: 300;
    font-display: swap;
}
@font-face {
    font-family: 'A2z';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2601-6@1.0/에이투지체-4Regular.woff2') format('woff2');
    font-weight: 400;
    font-display: swap;
}
@font-face {
    font-family: 'A2z';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2601-6@1.0/에이투지체-5Medium.woff2') format('woff2');
    font-weight: 500;
    font-display: swap;
}
@font-face {
    font-family: 'A2z';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2601-6@1.0/에이투지체-6SemiBold.woff2') format('woff2');
    font-weight: 600;
    font-display: swap;
}
@font-face {
    font-family: 'A2z';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2601-6@1.0/에이투지체-7Bold.woff2') format('woff2');
    font-weight: 700;
    font-display: swap;
}
@font-face {
    font-family: 'A2z';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2601-6@1.0/에이투지체-8ExtraBold.woff2') format('woff2');
    font-weight: 800;
    font-display: swap;
}
@font-face {
    font-family: 'A2z';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2601-6@1.0/에이투지체-9Black.woff2') format('woff2');
    font-weight: 900;
    font-display: swap;
}

/* ---- Reset & Base ---- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* ── 팔레트 (제공된 색상 그대로) ── */
    --bright-snow:   #f8f9fa;
    --platinum:      #e9ecef;
    --alabaster:     #dee2e6;
    --pale-slate:    #ced4da;
    --pale-slate-2:  #adb5bd;
    --slate-grey:    #6c757d;
    --iron-grey:     #495057;
    --gunmetal:      #343a40;
    --carbon-black:  #212529;

    /* ── 의미별 별칭 ── */
    --white:   #ffffff;
    --black:   var(--carbon-black);
    --dark:    var(--carbon-black);
    --dark-2:  var(--gunmetal);
    --dark-3:  var(--iron-grey);
    --gray-1:  var(--iron-grey);
    --gray-2:  var(--slate-grey);
    --gray-3:  var(--pale-slate-2);
    --gray-4:  var(--pale-slate);
    --gray-5:  var(--alabaster);
    --light:   var(--platinum);

    /* ── 포인트 컬러: 딥 인디고 블루 (신뢰·전문성) ── */
    --accent:        #3d5a80;
    --accent-light:  #6b8cae;
    --accent-pale:   #e0e8f0;

    /* ── 폰트 ── */
    --font-title: 'A2z', 'Noto Sans KR', sans-serif;   /* 제목 — 에이투지체 */
    --font-kr:    'A2z', 'Noto Sans KR', sans-serif;   /* 본문 한글 — 에이투지체 */
    --font-en:    'Playfair Display', serif;            /* 영문 포인트 */

    --transition: 0.3s ease;
    --shadow: 0 8px 40px rgba(33,37,41,0.12);
    --shadow-lg: 0 16px 56px rgba(33,37,41,0.18);
    --radius: 2px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-kr);
    background-color: var(--white);
    color: var(--dark);
    line-height: 1.7;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

ul { list-style: none; }

img { max-width: 100%; display: block; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
    background: rgba(228,231,235,0.96);
    padding: 12px 0;
    box-shadow: 0 2px 30px rgba(33,37,41,0.10);
    backdrop-filter: blur(12px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    cursor: pointer;
}

.logo-a1 {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.logo-lucid {
    font-family: 'A2z', sans-serif;
    font-style: normal;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--carbon-black);
    letter-spacing: 3px;
    line-height: 1;
}

.logo-sub {
    font-family: 'A2z', sans-serif;
    font-size: 0.6rem;
    font-weight: 300;
    color: var(--slate-grey);
    letter-spacing: 5px;
    text-align: right;
}

.nav-menu {
    display: flex;
    gap: 36px;
    align-items: center;
}

.nav-link {
    font-family: var(--font-kr);
    font-size: 0.88rem;
    font-weight: 400;
    color: rgba(33,37,41,0.75);
    letter-spacing: 0.5px;
    transition: color var(--transition);
    position: relative;
    padding-bottom: 4px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 1px;
    background: var(--accent);
    transition: width var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--carbon-black);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--carbon-black);
    transition: all var(--transition);
}

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

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: #e4e7eb;
}

.hero-skyline {
    display: none;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-color: #e4e7eb;
    background-image: radial-gradient(circle, #b0b8c4 1.2px, transparent 1.2px);
    background-size: 28px 28px;
    overflow: hidden;
}

/* 오른쪽 페이드 아웃 */
.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        105deg,
        rgba(228,231,235,0.0) 40%,
        rgba(228,231,235,0.95) 80%
    );
    z-index: 0;
}

/* 텍스트 가독성 오버레이 */
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to right,
        rgba(228,231,235,0.0) 0%,
        rgba(228,231,235,0.0) 45%,
        rgba(228,231,235,0.85) 100%
    );
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    padding-top: 100px;
}

.hero-eyebrow {
    font-family: var(--font-en);
    font-size: 0.78rem;
    font-weight: 400;
    letter-spacing: 6px;
    color: var(--accent);
    margin-bottom: 24px;
    opacity: 0;
    animation: fadeUp 0.8s ease 0.3s forwards;
}

.hero-title {
    font-family: var(--font-title);
    font-size: clamp(2.4rem, 5vw, 4.2rem);
    font-weight: 700;
    color: var(--carbon-black);
    line-height: 1.25;
    margin-bottom: 24px;
    opacity: 0;
    animation: fadeUp 0.8s ease 0.5s forwards;
    letter-spacing: -0.5px;
}

.hero-accent {
    color: var(--accent);
    font-style: normal;
}

.hero-subtitle {
    font-size: clamp(0.95rem, 1.5vw, 1.05rem);
    font-weight: 300;
    color: var(--slate-grey);
    line-height: 2.0;
    margin-bottom: 48px;
    opacity: 0;
    animation: fadeUp 0.8s ease 0.7s forwards;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeUp 0.8s ease 0.9s forwards;
}

/* Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 2;
    opacity: 0;
    animation: fadeIn 1s ease 1.5s forwards;
}

.hero-scroll span {
    font-family: var(--font-en);
    font-size: 0.65rem;
    letter-spacing: 3px;
    color: var(--pale-slate-2);
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, var(--pale-slate-2), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-family: var(--font-kr);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    border-radius: var(--radius);
    transition: all var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: var(--white);
    border: 1px solid var(--accent);
}

.btn-primary:hover {
    background: #2e4460;
    border-color: #2e4460;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(61,90,128,0.35);
}

.btn-outline {
    background: transparent;
    color: var(--carbon-black);
    border: 1px solid rgba(73,80,87,0.5);
}

.btn-outline:hover {
    background: rgba(33,37,41,0.06);
    border-color: var(--gunmetal);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Contact section buttons — override */
.contact-section .btn-primary {
    background: var(--accent);
    color: var(--white);
    border: 1px solid var(--accent);
}
.contact-section .btn-primary:hover {
    background: #2e4460;
    border-color: #2e4460;
}
.contact-section .btn-outline {
    color: var(--gunmetal);
    border-color: var(--pale-slate);
    background: var(--white);
}
.contact-section .btn-outline:hover {
    background: var(--platinum);
    border-color: var(--slate-grey);
    transform: translateY(-2px);
}

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

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-eyebrow {
    font-family: var(--font-en);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 6px;
    color: var(--accent);
    margin-bottom: 12px;
}

.section-header.light .section-eyebrow {
    color: var(--accent-light);
}

.section-title {
    font-family: var(--font-title);
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 700;
    color: var(--carbon-black);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-header.light .section-title {
    color: var(--white);
}

.section-line {
    width: 40px;
    height: 2px;
    background: var(--accent);
    margin: 0 auto 20px;
}

.section-desc {
    font-size: 0.95rem;
    color: var(--gray-3);
    font-weight: 300;
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about-section {
    background: var(--bright-snow);
}

.about-grid {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 80px;
    align-items: start;
}

.about-photo-wrap {
    position: sticky;
    top: 100px;
}

.about-photo-frame {
    position: relative;
    overflow: hidden;
    background: var(--dark-2);
    height: 480px;
}

.about-photo-frame::before {
    content: '';
    position: absolute;
    top: -2px; left: -2px; right: -2px; bottom: -2px;
    border: 1px solid var(--accent);
    z-index: 1;
    pointer-events: none;
}

.about-photo {
    width: 100%;
    height: 480px;
    object-fit: cover;
    object-position: top center;
    filter: grayscale(20%);
    transition: filter var(--transition);
    display: block;
}

.about-photo:hover {
    filter: grayscale(0%);
}

.about-name-card {
    background: var(--carbon-black);
    padding: 20px 24px;
    text-align: center;
    border-top: 2px solid var(--accent);
}

.about-name-card h3 {
    font-family: var(--font-kr);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 2px;
    margin-bottom: 4px;
}

.about-name-card p {
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 400;
    margin-bottom: 4px;
}

.about-name-eng {
    font-family: var(--font-en);
    font-size: 0.72rem !important;
    color: var(--gray-4) !important;
    letter-spacing: 1px;
}

.about-intro {
    margin-bottom: 40px;
    padding: 28px 32px;
    border-left: 3px solid var(--accent);
    background: var(--bright-snow);
}

.about-lead {
    font-size: 1.05rem;
    color: var(--dark);
    line-height: 1.9;
    font-weight: 400;
}

.about-lead strong {
    color: var(--dark);
    font-weight: 700;
}

/* Career Timeline */
.career-timeline {
    margin-bottom: 36px;
    position: relative;
}

.career-timeline::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 8px;
    bottom: 8px;
    width: 1px;
    background: var(--gray-5);
}

.timeline-item {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    align-items: flex-start;
    position: relative;
}

.timeline-dot {
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: var(--gray-4);
    flex-shrink: 0;
    margin-top: 5px;
    position: relative;
    z-index: 1;
    border: 2px solid var(--white);
    outline: 1px solid var(--gray-4);
}

.timeline-dot.active {
    background: var(--dark);
    outline-color: var(--dark);
}

.timeline-dot.current-dot {
    background: var(--accent);
    outline-color: var(--accent);
    box-shadow: 0 0 8px rgba(61,90,128,0.5);
}

.timeline-content {
    flex: 1;
}

.timeline-year {
    font-family: var(--font-en);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--gray-3);
    display: block;
    margin-bottom: 2px;
}

.current-tag {
    color: var(--accent) !important;
    font-weight: 700;
}

.timeline-content p {
    font-size: 0.9rem;
    color: var(--dark);
    font-weight: 400;
}

.timeline-item.highlight .timeline-content p {
    font-weight: 500;
}

.timeline-item.current .timeline-content p {
    font-weight: 700;
    color: var(--dark);
}

/* Tags */
.about-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    font-size: 0.78rem;
    font-weight: 500;
    padding: 6px 14px;
    border: 1px solid var(--pale-slate);
    color: var(--iron-grey);
    letter-spacing: 0.5px;
    transition: all var(--transition);
}

.tag:hover {
    background: var(--gunmetal);
    color: var(--white);
    border-color: var(--gunmetal);
}

/* ============================================================
   SERVICES SECTION
   ============================================================ */
.services-section {
    position: relative;
    overflow: hidden;
    /* BG-6: 라이트 그레이 + 사선 스트라이프 + 스퀘어 오너먼트 */
    background-color: #f0f2f4;
    background-image: repeating-linear-gradient(
        -45deg,
        transparent,
        transparent 18px,
        rgba(150,160,175,0.12) 18px,
        rgba(150,160,175,0.12) 19px
    );
}

/* 스퀘어 오너먼트 */
.services-section::before {
    content: '';
    position: absolute;
    right: -60px;
    top: 50%;
    transform: translateY(-50%) rotate(15deg);
    width: 360px;
    height: 360px;
    border: 1.5px solid rgba(150,160,175,0.22);
    pointer-events: none;
}
.services-section::after {
    content: '';
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%) rotate(15deg);
    width: 230px;
    height: 230px;
    border: 1px solid rgba(150,160,175,0.14);
    pointer-events: none;
}

/* 라이트 배경용 섹션 헤더 색상 오버라이드 */
.services-section .section-eyebrow {
    color: var(--slate-grey);
}
.services-section .section-title {
    color: var(--carbon-black);
}
.services-section .section-line {
    background: var(--accent);
}
.services-section .section-desc {
    color: var(--slate-grey);
}

/* ── 탭 레이아웃 ── */
.service-tab-wrap {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 0;
    border: 1px solid rgba(150,160,175,0.25);
    max-width: 900px;
    margin: 0 auto;
    background: rgba(255,255,255,0.6);
}

/* 왼쪽 탭 네비 */
.service-tab-nav {
    border-right: 1px solid rgba(150,160,175,0.25);
    background: rgba(255,255,255,0.4);
}

.service-tab-btn {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    padding: 28px 28px;
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(150,160,175,0.18);
    cursor: pointer;
    text-align: left;
    transition: all 0.25s ease;
    position: relative;
}

.service-tab-btn:last-child {
    border-bottom: none;
}

.service-tab-btn .tab-num {
    font-family: var(--font-en);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--pale-slate-2);
    min-width: 20px;
    transition: color 0.25s ease;
}

.service-tab-btn .tab-name {
    font-family: var(--font-kr);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--slate-grey);
    transition: color 0.25s ease;
    letter-spacing: -0.2px;
}

.service-tab-btn::after {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 0;
    background: var(--accent);
    transition: width 0.25s ease;
}

.service-tab-btn:hover .tab-name,
.service-tab-btn:hover .tab-num {
    color: var(--gunmetal);
}

.service-tab-btn.active::after {
    width: 3px;
}

.service-tab-btn.active .tab-num {
    color: var(--accent);
}

.service-tab-btn.active .tab-name {
    color: var(--carbon-black);
    font-weight: 700;
}

/* 오른쪽 패널 */
.service-tab-panels {
    position: relative;
    min-height: 320px;
}

.service-tab-panel {
    display: none;
    padding: 48px 52px;
    height: 100%;
}

.service-tab-panel.active {
    display: flex;
    flex-direction: column;
    justify-content: center;
    animation: fadeUp 0.35s ease forwards;
}

.stp-label {
    font-family: var(--font-en);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 4px;
    color: var(--accent);
    margin-bottom: 16px;
}

.stp-title {
    font-family: var(--font-title);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--carbon-black);
    margin-bottom: 18px;
    letter-spacing: -0.5px;
    line-height: 1.3;
}

.stp-desc {
    font-size: 0.88rem;
    color: var(--slate-grey);
    line-height: 1.9;
    margin-bottom: 28px;
    font-weight: 300;
}

.stp-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.stp-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--iron-grey);
    font-weight: 400;
}

.stp-list li::before {
    content: '';
    width: 18px;
    height: 1px;
    background: var(--accent);
    flex-shrink: 0;
}

.service-card.featured .service-list {
    border-color: rgba(255,255,255,0.1);
}

.service-list li {
    font-size: 0.83rem;
    color: var(--gray-2);
    padding: 6px 0;
    padding-left: 16px;
    position: relative;
}

.service-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 0.75rem;
}

.service-card.featured .service-list li {
    color: var(--gray-4);
}

/* ============================================================
   WHY SECTION
   ============================================================ */
.why-section {
    position: relative;
    overflow: hidden;
    background-color: #f0f2f4;
    background-image:
        linear-gradient(rgba(180,188,200,0.35) 1px, transparent 1px),
        linear-gradient(90deg, rgba(180,188,200,0.35) 1px, transparent 1px);
    background-size: 42px 42px;
}

/* 원형 오너먼트 */
.why-section::before {
    content: '';
    position: absolute;
    right: 8%;
    top: 50%;
    transform: translateY(-50%);
    width: 420px;
    height: 420px;
    border-radius: 50%;
    border: 1.5px solid rgba(150,160,175,0.28);
    pointer-events: none;
}

.why-section::after {
    content: '';
    position: absolute;
    right: 10.5%;
    top: 50%;
    transform: translateY(-50%);
    width: 280px;
    height: 280px;
    border-radius: 50%;
    border: 1px solid rgba(150,160,175,0.18);
    pointer-events: none;
}

.why-list {
    max-width: 760px;
    margin: 0 auto;
}

.why-item {
    display: flex;
    align-items: flex-start;
    gap: 32px;
    padding: 36px 0;
    border-bottom: 1px solid rgba(150,160,175,0.25);
    transition: all var(--transition);
}

.why-item:first-child {
    border-top: 1px solid rgba(150,160,175,0.25);
}

.why-item:hover .why-idx {
    color: var(--accent);
}

.why-idx {
    font-family: var(--font-en);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--pale-slate-2);
    min-width: 28px;
    padding-top: 4px;
    transition: color var(--transition);
}

.why-item-body h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--carbon-black);
    margin-bottom: 10px;
    letter-spacing: -0.3px;
}

.why-item-body p {
    font-size: 0.88rem;
    color: var(--slate-grey);
    line-height: 1.9;
    font-weight: 300;
}

/* ============================================================
   COLUMN SECTION
   ============================================================ */
.column-section {
    background: var(--bright-snow);
}

.column-card-wrap {
    max-width: 100%;
}

.column-card {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 0;
    background: var(--white);
    border: 1px solid var(--alabaster);
    overflow: hidden;
    transition: box-shadow var(--transition);
    box-shadow: 0 2px 16px rgba(33,37,41,0.06);
    border-top: 4px solid var(--accent);
}

.column-card:hover {
    box-shadow: 0 12px 40px rgba(33,37,41,0.12);
}

.column-card-left {
    padding: 48px 52px;
    background: var(--white);
}

.column-meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.column-media-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--dark);
    color: var(--white);
    padding: 6px 14px;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 1px;
}

.column-media-badge i {
    color: var(--accent);
}

.column-date {
    font-family: var(--font-en);
    font-size: 0.78rem;
    color: var(--gray-3);
    letter-spacing: 1px;
}

.column-category {
    font-size: 0.78rem;
    color: var(--accent);
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 18px;
    text-transform: uppercase;
}

.column-title {
    font-size: clamp(1.3rem, 2.2vw, 1.8rem);
    font-weight: 700;
    color: var(--dark);
    line-height: 1.4;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.column-title span {
    color: var(--accent);
}

.column-excerpt {
    font-size: 0.9rem;
    color: var(--gray-2);
    line-height: 1.9;
    margin-bottom: 28px;
    font-weight: 300;
}

.column-highlights {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 32px;
    padding: 20px 24px;
    background: var(--light);
    border-left: 3px solid var(--accent);
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--dark);
    font-weight: 500;
}

.highlight-item i {
    color: var(--accent);
    flex-shrink: 0;
}

.column-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--dark);
    letter-spacing: 1px;
    border-bottom: 1px solid var(--dark);
    padding-bottom: 2px;
    transition: all var(--transition);
}

.column-link:hover {
    color: var(--accent);
    border-color: var(--accent);
    gap: 14px;
}

.column-card-right {
    background: var(--carbon-black);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

/* FTA Diagram */
.column-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    width: 100%;
}

.fta-diagram {
    position: relative;
    width: 260px;
    height: 260px;
}

.fta-lines {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.fta-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.fta-center-label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--dark);
    text-align: center;
    line-height: 1.4;
}

.fta-node {
    position: absolute;
    width: 72px;
    height: 72px;
    border: 1px solid rgba(255,255,255,0.2);
    background: rgba(255,255,255,0.06);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    transition: all var(--transition);
}

.fta-node:hover {
    border-color: var(--accent-light);
    background: rgba(61,90,128,0.25);
}

.fta-node span {
    font-size: 0.65rem;
    color: var(--white);
    text-align: center;
    line-height: 1.4;
    font-weight: 500;
}

.node-1 { top: 0; left: 50%; transform: translateX(-50%); }
.node-2 { bottom: 0; right: 0; }
.node-3 { bottom: 0; left: 0; }

.fta-caption {
    text-align: center;
    font-size: 0.78rem;
    color: rgba(255,255,255,0.4);
    line-height: 1.6;
    font-weight: 300;
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact-section {
    background: var(--bright-snow);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 20px 0;
    border-bottom: 1px solid var(--gray-5);
}

.contact-item:first-child {
    border-top: 1px solid var(--gray-5);
}

.contact-icon {
    width: 44px;
    height: 44px;
    background: transparent;
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.15rem;
    border: 1.5px solid var(--pale-slate);
    border-radius: 8px;
}

.contact-item h4 {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--gray-3);
    margin-bottom: 4px;
    text-transform: uppercase;
}

.contact-item p {
    font-size: 0.92rem;
    color: var(--dark);
    font-weight: 400;
    line-height: 1.6;
}

.contact-item a {
    color: var(--dark);
    transition: color var(--transition);
    font-weight: 500;
}

.contact-item a:hover { color: var(--accent); }

.contact-cta-box {
    margin-top: 32px;
    padding: 28px;
    background: var(--carbon-black);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-cta-box p {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
    margin-bottom: 4px;
    font-weight: 300;
}

.contact-cta-box .btn-primary {
    background: var(--white);
    color: var(--dark);
}

.contact-cta-box .btn-primary:hover {
    background: var(--accent);
    color: var(--white);
}

.contact-cta-box .btn-outline {
    color: var(--white);
    border-color: rgba(255,255,255,0.7);
    background: rgba(255,255,255,0.08);
}

.contact-cta-box .btn-outline:hover {
    background: var(--white);
    border-color: var(--white);
    color: var(--carbon-black);
}

/* Contact Form */
.contact-form-wrap {
    background: var(--white);
    padding: 44px;
    border-top: 3px solid var(--accent);
}

.form-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 28px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--gray-5);
    letter-spacing: -0.3px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--gray-2);
    margin-bottom: 6px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--light);
    border: 1px solid var(--gray-5);
    border-radius: 0;
    font-family: var(--font-kr);
    font-size: 0.9rem;
    color: var(--dark);
    transition: border-color var(--transition);
    outline: none;
    -webkit-appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(61,90,128,0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group select {
    cursor: pointer;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: var(--carbon-black);
    padding: 70px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo-a1 {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
}

.footer-brand .logo-lucid {
    font-family: var(--font-kr);
    font-size: 1.35rem;
    letter-spacing: 3px;
    color: rgba(255,255,255,0.88);
    display: block;
}

.footer-brand .logo-sub {
    font-family: var(--font-kr);
    font-size: 0.72rem;
    color: var(--slate-grey);
    letter-spacing: 3px;
    display: block;
}

.footer-slogan {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.4);
    margin-bottom: 12px;
    font-weight: 300;
}

.footer-copy {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.25);
    line-height: 1.6;
}

.footer-links h4,
.footer-contact-info h4 {
    font-family: var(--font-kr);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: rgba(255,255,255,0.65);
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links li a {
    font-family: var(--font-kr);
    font-size: 0.85rem;
    color: rgba(255,255,255,0.4);
    transition: color var(--transition);
    font-weight: 300;
}

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

.footer-contact-info p {
    font-family: var(--font-kr);
    font-size: 0.82rem;
    color: rgba(255,255,255,0.4);
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    line-height: 1.6;
    font-weight: 300;
}

.footer-contact-info i {
    color: var(--accent);
    flex-shrink: 0;
    margin-top: 3px;
    font-size: 0.75rem;
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.2);
    letter-spacing: 1px;
}

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.75);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
    backdrop-filter: blur(4px);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal {
    background: var(--white);
    padding: 52px 48px;
    text-align: center;
    max-width: 400px;
    width: 90%;
    transform: translateY(20px);
    transition: transform var(--transition);
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-icon {
    font-size: 2.8rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.modal h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.modal p {
    font-size: 0.9rem;
    color: var(--gray-2);
    line-height: 1.7;
    margin-bottom: 28px;
}

/* ============================================================
   SCROLL REVEAL ANIMATIONS
   ============================================================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* ============================================================
   KEYFRAMES
   ============================================================ */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.4; transform: scaleY(1); }
    50%       { opacity: 0.9; transform: scaleY(1.15); }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 280px 1fr;
        gap: 50px;
    }
    .column-card {
        grid-template-columns: 1fr;
    }
    .column-card-right {
        padding: 40px;
        min-height: 300px;
    }
}

@media (max-width: 768px) {
    .container { padding: 0 20px; }

    .hamburger { display: flex; }

    .nav-menu {
        position: fixed;
        top: 0; right: -100%;
        width: 75%;
        max-width: 320px;
        height: 100vh;
        background: var(--bright-snow);
        flex-direction: column;
        justify-content: center;
        gap: 28px;
        transition: right 0.4s ease;
        z-index: 999;
        padding: 80px 40px;
        box-shadow: -4px 0 30px rgba(33,37,41,0.08);
    }

    .nav-menu.open { right: 0; }

    .nav-link {
        font-size: 1.1rem;
    }

    section { padding: 70px 0; }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-photo-wrap {
        position: static;
        max-width: 280px;
        margin: 0 auto;
    }

    .service-tab-wrap {
        grid-template-columns: 1fr;
    }
    .service-tab-nav {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        border-right: none;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    .service-tab-btn {
        border-bottom: none;
        border-right: 1px solid rgba(255,255,255,0.08);
        padding: 18px 16px;
        flex-direction: column;
        gap: 4px;
        align-items: flex-start;
    }
    .service-tab-btn:nth-child(2n) { border-right: none; }
    .service-tab-btn::after {
        top: 0; bottom: auto; left: 0; right: 0;
        width: auto; height: 0;
        transition: height 0.25s ease;
    }
    .service-tab-btn.active::after { width: auto; height: 3px; }
    .service-tab-panel { padding: 32px 28px; }

    .why-item { gap: 20px; }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: flex-start;
    }

    .column-card-left { padding: 32px 24px; }

    .contact-form-wrap { padding: 28px 20px; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2rem; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .column-meta-row { flex-direction: column; align-items: flex-start; gap: 10px; }
}