/* ============================================================
   스패너 하우스 - SPANNER HOUSE
   대연건설 주식회사 | 공식 홈페이지
   ============================================================ */

/* ---- CSS Variables ---- */
:root {
    --primary: #1a2e4a;
    --primary-light: #253d62;
    --accent: #c8a96e;
    --accent-light: #e2c99a;
    --accent-dark: #a68840;
    --text-dark: #1a1a2e;
    --text-mid: #4a4a6a;
    --text-light: #7a7a9a;
    --bg-light: #f8f7f4;
    --bg-white: #ffffff;
    --bg-dark: #0f1c2e;
    --border: #e0ddd6;
    --success: #27ae60;
    --smart-color: #2980b9;
    --fast-color: #e67e22;
    --eco-color: #27ae60;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.15);
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    color: var(--text-dark);
    background: var(--bg-white);
    line-height: 1.7;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul, ol { list-style: none; }

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

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* ---- Container ---- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---- Section Common ---- */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 700;
    color: var(--primary);
    margin: 12px 0 16px;
    letter-spacing: -0.5px;
}

.section-header p {
    font-size: 17px;
    color: var(--text-mid);
    max-width: 600px;
    margin: 0 auto;
}

.section-header.light h2 { color: #fff; }
.section-header.light p { color: rgba(255,255,255,0.75); }

.section-badge {
    display: inline-block;
    font-family: 'Montserrat', sans-serif;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--accent);
    background: rgba(200, 169, 110, 0.12);
    border: 1px solid rgba(200, 169, 110, 0.3);
    padding: 6px 16px;
    border-radius: 50px;
    text-transform: uppercase;
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--accent);
    color: var(--primary);
    border-color: var(--accent);
}

.btn-primary:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(200, 169, 110, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
}

.btn-white {
    background: #fff;
    color: var(--primary);
    border-color: #fff;
}

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

.full-width { width: 100%; }

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

.navbar.scrolled {
    background: rgba(255,255,255,0.97);
    padding: 14px 0;
    box-shadow: 0 2px 30px rgba(0,0,0,0.1);
}

.navbar.scrolled .nav-logo .logo-ko { color: var(--primary); }
.navbar.scrolled .nav-logo .logo-en { color: var(--accent); }
.navbar.scrolled .nav-link { color: var(--text-dark); }
.navbar.scrolled .hamburger span { background: var(--primary); }

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.nav-logo .logo-ko {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.3px;
    transition: var(--transition);
}

.nav-logo .logo-en {
    font-family: 'Montserrat', sans-serif;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--accent);
    transition: var(--transition);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: rgba(255,255,255,0.9);
    padding: 8px 14px;
    border-radius: 6px;
    transition: var(--transition);
}

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

.nav-cta {
    background: var(--accent);
    color: var(--primary) !important;
    font-weight: 700;
    padding: 10px 20px !important;
}

.nav-cta:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(200,169,110,0.4);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: var(--transition);
}

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

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0f1c2e 0%, #1a2e4a 40%, #0d2137 70%, #1e3a5f 100%);
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(200,169,110,0.08) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(41,128,185,0.1) 0%, transparent 50%);
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(200,169,110,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(200,169,110,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 60%, rgba(15,28,46,0.5) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 120px 24px 160px;
    max-width: 900px;
}

.hero-badge {
    font-family: 'Montserrat', sans-serif;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 4px;
    color: var(--accent);
    background: rgba(200,169,110,0.1);
    border: 1px solid rgba(200,169,110,0.3);
    padding: 8px 24px;
    border-radius: 50px;
    display: inline-block;
    margin-bottom: 32px;
    animation: fadeInDown 0.8s ease both;
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 28px;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-title-main {
    font-size: clamp(42px, 8vw, 80px);
    font-weight: 900;
    color: #fff;
    letter-spacing: -2px;
    line-height: 1.1;
}

.hero-title-sub {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(16px, 3vw, 24px);
    font-weight: 300;
    color: var(--accent-light);
    letter-spacing: 8px;
}

.hero-desc {
    font-size: clamp(16px, 2.5vw, 20px);
    color: rgba(255,255,255,0.75);
    margin-bottom: 48px;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-buttons .btn-outline {
    color: rgba(255,255,255,0.9);
    border-color: rgba(255,255,255,0.4);
}

.hero-buttons .btn-outline:hover {
    background: rgba(255,255,255,0.15);
    color: #fff;
    border-color: #fff;
}

.hero-scroll {
    position: absolute;
    bottom: 180px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.5);
    font-size: 10px;
    letter-spacing: 3px;
    font-family: 'Montserrat', sans-serif;
    animation: fadeIn 1s ease 1.2s both;
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
    animation: scrollDown 1.5s ease infinite;
}

.hero-stats {
    position: absolute;
    bottom: 0;
    left: 0; right: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 28px 24px;
    gap: 0;
}

.stat-item {
    text-align: center;
    padding: 0 48px;
    flex: 1;
    max-width: 200px;
}

.stat-number {
    display: block;
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}

.stat-unit {
    font-size: 0.6em;
    font-weight: 400;
}

.stat-label {
    display: block;
    font-size: 12px;
    color: rgba(255,255,255,0.6);
    margin-top: 6px;
    letter-spacing: 1px;
}

.stat-divider {
    width: 1px;
    height: 50px;
    background: rgba(255,255,255,0.2);
}

/* ============================================================
   COMPANY INTRO
   ============================================================ */
.company-intro {
    padding: 80px 0;
    background: var(--bg-light);
}

.company-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.company-text .section-badge { margin-bottom: 20px; }

.company-text h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(28px, 3.5vw, 38px);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.company-lead {
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
    color: var(--accent);
    letter-spacing: 2px;
    margin-bottom: 24px;
}

.company-text p {
    color: var(--text-mid);
    font-size: 16px;
    margin-bottom: 16px;
}

.company-visual {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.visual-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border);
}

.visual-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-light);
}

.visual-card i {
    font-size: 28px;
    color: var(--accent);
    margin-bottom: 12px;
}

.visual-card h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 6px;
}

.visual-card p {
    font-size: 13px;
    color: var(--text-light);
}

/* ============================================================
   OVERVIEW
   ============================================================ */
.overview { background: var(--bg-white); }

.overview-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.overview-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.overview-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--accent);
    transform: scaleX(0);
    transition: var(--transition);
    transform-origin: left;
}

.overview-card:hover::before { transform: scaleX(1); }
.overview-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin-bottom: 24px;
}

.card-icon.smart { background: rgba(41,128,185,0.1); color: var(--smart-color); }
.card-icon.fast { background: rgba(230,126,34,0.1); color: var(--fast-color); }
.card-icon.eco { background: rgba(39,174,96,0.1); color: var(--eco-color); }

.overview-card h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

.overview-card p {
    font-size: 15px;
    color: var(--text-mid);
    margin-bottom: 20px;
}

.overview-card ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.overview-card ul li {
    font-size: 14px;
    color: var(--text-mid);
    padding-left: 16px;
    position: relative;
}

.overview-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
}

/* ============================================================
   FEATURES
   ============================================================ */
.features { background: var(--bg-light); }

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.feature-item {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 36px 28px;
    position: relative;
    transition: var(--transition);
    border: 1px solid var(--border);
    overflow: hidden;
}

.feature-item::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    transition: var(--transition);
    z-index: 0;
}

.feature-item:hover::after { height: 100%; }
.feature-item:hover * { position: relative; z-index: 1; color: rgba(255,255,255,0.9) !important; }
.feature-item:hover .feature-num { color: var(--accent) !important; }
.feature-item:hover .feature-icon i { color: var(--accent) !important; }
.feature-item:hover h3 { color: #fff !important; }
.feature-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.feature-num {
    font-family: 'Montserrat', sans-serif;
    font-size: 48px;
    font-weight: 800;
    color: rgba(200,169,110,0.15);
    line-height: 1;
    margin-bottom: 8px;
    transition: var(--transition);
}

.feature-icon {
    font-size: 28px;
    color: var(--accent);
    margin-bottom: 16px;
    transition: var(--transition);
}

.feature-item h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
    transition: var(--transition);
}

.feature-item p {
    font-size: 14px;
    color: var(--text-mid);
    line-height: 1.7;
    transition: var(--transition);
}

/* ============================================================
   HOUSE TYPES
   ============================================================ */
.house-types { background: var(--bg-white); }

.type-tabs {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 12px 28px;
    border-radius: 50px;
    border: 2px solid var(--border);
    color: var(--text-mid);
    background: var(--bg-white);
    transition: var(--transition);
}

.tab-btn:hover, .tab-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(26,46,74,0.3);
}

.tab-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--primary);
}

.type-content { position: relative; }

.type-panel {
    display: none;
    animation: fadeIn 0.5s ease;
}

.type-panel.active { display: block; }

.type-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 48px;
    border: 1px solid var(--border);
}

.type-badge {
    display: inline-block;
    font-family: 'Montserrat', sans-serif;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 3px;
    background: var(--primary);
    color: var(--accent);
    padding: 6px 16px;
    border-radius: 4px;
    margin-bottom: 16px;
}

.type-info h3 {
    font-size: clamp(22px, 3vw, 30px);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.type-info h3 span {
    font-size: 0.7em;
    background: var(--accent);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 20px;
    margin-left: 8px;
    vertical-align: middle;
}

.type-target {
    font-size: 15px;
    font-weight: 600;
    color: var(--accent-dark);
    margin-bottom: 16px;
}

.type-desc {
    font-size: 15px;
    color: var(--text-mid);
    margin-bottom: 24px;
    line-height: 1.8;
}

.type-specs {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 24px;
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 20px 24px;
    border: 1px solid var(--border);
}

.type-specs li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-mid);
}

.type-specs li i {
    color: var(--accent);
    width: 16px;
    flex-shrink: 0;
}

.type-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 28px;
}

.type-features span {
    font-size: 13px;
    color: var(--text-mid);
    display: flex;
    align-items: center;
    gap: 6px;
}

.type-features span i {
    color: var(--success);
    font-size: 12px;
}

.type-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.type-illustration {
    width: 100%;
    min-height: 360px;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    padding: 32px;
    position: relative;
    overflow: hidden;
}

.type-a-bg { background: linear-gradient(135deg, #1a2e4a, #2a4a70); }
.type-b-bg { background: linear-gradient(135deg, #1e3a2a, #2e5a3a); }
.type-c-bg { background: linear-gradient(135deg, #2a1e3a, #4a2e6a); }
.type-d-bg { background: linear-gradient(135deg, #2a1e1e, #5a2e2e); }

.house-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.9);
}

.house-icon i {
    font-size: 60px;
    color: var(--accent);
    filter: drop-shadow(0 4px 20px rgba(200,169,110,0.5));
}

.house-icon span {
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 3px;
}

.house-icon .sqm {
    background: var(--accent);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 20px;
    letter-spacing: 1px;
}

.floor-plan {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    width: 100%;
}

.room {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 12px;
    text-align: center;
    font-size: 12px;
    color: rgba(255,255,255,0.8);
    font-weight: 500;
    backdrop-filter: blur(4px);
}

.room.wide { grid-column: span 2; }
.room.living { background: rgba(200,169,110,0.15); border-color: rgba(200,169,110,0.3); color: var(--accent-light); }
.room.bedroom { background: rgba(41,128,185,0.12); border-color: rgba(41,128,185,0.25); }
.room.bath { background: rgba(39,174,96,0.1); border-color: rgba(39,174,96,0.2); }

/* ============================================================
   LIFECYCLE
   ============================================================ */
.lifecycle {
    background: linear-gradient(135deg, var(--primary) 0%, #0d2137 50%, #1e3a5f 100%);
    position: relative;
    overflow: hidden;
}

.lifecycle::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(200,169,110,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(200,169,110,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.lifecycle-timeline {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 0;
    max-width: 800px;
    margin: 0 auto 64px;
}

.timeline-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 32px;
    align-items: start;
    position: relative;
    z-index: 1;
}

.timeline-connector {
    height: 40px;
    margin-left: 39px;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent), rgba(200,169,110,0.3));
}

.timeline-dot {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(200,169,110,0.15);
    border: 2px solid var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--accent);
    flex-shrink: 0;
    transition: var(--transition);
}

.timeline-item:hover .timeline-dot {
    background: var(--accent);
    color: var(--primary);
    transform: scale(1.05);
}

.timeline-content {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    padding: 28px 32px;
    backdrop-filter: blur(10px);
    margin-bottom: 0;
    transition: var(--transition);
}

.timeline-item:hover .timeline-content {
    background: rgba(255,255,255,0.1);
    border-color: rgba(200,169,110,0.3);
}

.timeline-stage {
    font-family: 'Montserrat', sans-serif;
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--accent);
    margin-bottom: 6px;
}

.timeline-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
}

.timeline-type {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    background: rgba(200,169,110,0.1);
    border: 1px solid rgba(200,169,110,0.3);
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 12px;
}

.timeline-content p {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 12px;
}

.timeline-content ul {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.timeline-content ul li {
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    padding-left: 14px;
    position: relative;
}

.timeline-content ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 5px;
    background: var(--accent);
    border-radius: 50%;
}

.lifecycle-cta {
    text-align: center;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(200,169,110,0.3);
    border-radius: var(--radius-lg);
    padding: 48px;
    backdrop-filter: blur(10px);
}

.lifecycle-cta h3 {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

.lifecycle-cta p {
    font-size: 16px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 28px;
}

/* ============================================================
   PROCESS
   ============================================================ */
.process { background: var(--bg-light); }

.process-steps {
    display: flex;
    align-items: flex-start;
    gap: 0;
    flex-wrap: wrap;
    justify-content: center;
}

.process-step {
    flex: 1;
    min-width: 140px;
    max-width: 180px;
    text-align: center;
    padding: 28px 16px;
    position: relative;
    transition: var(--transition);
}

.process-step:hover {
    transform: translateY(-4px);
}

.step-number {
    font-family: 'Montserrat', sans-serif;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--accent);
    margin-bottom: 12px;
}

.step-icon {
    width: 64px;
    height: 64px;
    background: var(--bg-white);
    border: 2px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--primary);
    margin: 0 auto 16px;
    transition: var(--transition);
}

.process-step:hover .step-icon {
    background: var(--primary);
    color: var(--accent);
    border-color: var(--primary);
    box-shadow: 0 4px 20px rgba(26,46,74,0.3);
}

.process-step h3 {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.process-step p {
    font-size: 12px;
    color: var(--text-light);
    line-height: 1.6;
}

.step-duration {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    color: var(--accent-dark);
    background: rgba(200,169,110,0.1);
    padding: 3px 10px;
    border-radius: 10px;
    margin-top: 10px;
}

.process-arrow {
    display: flex;
    align-items: center;
    color: var(--accent);
    font-size: 16px;
    padding-top: 40px;
    opacity: 0.5;
}

.process-total {
    margin-top: 48px;
    text-align: center;
}

.total-time {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--primary);
    color: rgba(255,255,255,0.8);
    padding: 16px 32px;
    border-radius: 50px;
    font-size: 15px;
}

.total-time i { color: var(--accent); }
.total-time strong { color: var(--accent); }

/* ============================================================
   SMART HOME
   ============================================================ */
.smarthome {
    background: var(--bg-white);
    padding: 100px 0;
}

.smarthome-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.smarthome-text .section-badge { margin-bottom: 20px; }

.smarthome-text h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(26px, 3.5vw, 38px);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
}

.smarthome-text > p {
    font-size: 16px;
    color: var(--text-mid);
    margin-bottom: 36px;
}

.smart-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.smart-feat {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.smart-feat:hover {
    border-color: var(--accent-light);
    transform: translateX(4px);
}

.smart-feat > i {
    font-size: 22px;
    color: var(--accent);
    margin-top: 2px;
    flex-shrink: 0;
    width: 32px;
}

.smart-feat h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.smart-feat p {
    font-size: 13px;
    color: var(--text-light);
}

/* Phone Mockup */
.smarthome-visual {
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 280px;
    background: #1a1a2e;
    border-radius: 40px;
    padding: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3), 0 0 0 1px rgba(255,255,255,0.1);
    position: relative;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 8px; left: 50%; transform: translateX(-50%);
    width: 60px; height: 4px;
    background: rgba(255,255,255,0.2);
    border-radius: 2px;
}

.phone-screen {
    background: #12121e;
    border-radius: 28px;
    padding: 28px 20px 20px;
    min-height: 460px;
}

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    color: #fff;
    font-size: 16px;
    font-weight: 700;
}

.app-header i { color: var(--accent); }

.app-status {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 16px;
}

.status-card {
    background: rgba(255,255,255,0.05);
    border-radius: 12px;
    padding: 14px 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    border: 1px solid rgba(255,255,255,0.08);
}

.status-card i { font-size: 18px; }
.status-card.on i { color: var(--accent); }
.status-card.off i { color: #888; }

.status-card span {
    font-size: 11px;
    color: rgba(255,255,255,0.6);
}

.badge-on, .badge-off {
    display: inline-block;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 8px;
    align-self: flex-start;
}

.badge-on { background: rgba(39,174,96,0.2); color: #27ae60; }
.badge-off { background: rgba(200,169,110,0.2); color: var(--accent); }

.energy-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 11px;
    color: rgba(255,255,255,0.6);
    padding: 12px;
    background: rgba(255,255,255,0.04);
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.06);
}

.bar {
    flex: 1;
    height: 4px;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    background: linear-gradient(to right, var(--accent), #27ae60);
    border-radius: 2px;
    animation: barFill 1.5s ease both;
}

/* ============================================================
   PLAN SECTION
   ============================================================ */
.plan-section { background: var(--bg-light); }

.plan-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.plan-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    border: 1px solid var(--border);
    text-align: center;
    transition: var(--transition);
    position: relative;
}

.plan-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.plan-card.highlight {
    background: var(--primary);
    border-color: var(--primary);
}

.plan-card.highlight h3,
.plan-card.highlight p,
.plan-card.highlight .plan-detail {
    color: rgba(255,255,255,0.9);
}

.plan-card.highlight .plan-icon { color: var(--accent); }

.plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--primary);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    padding: 5px 16px;
    border-radius: 20px;
}

.plan-icon {
    font-size: 40px;
    color: var(--accent);
    margin-bottom: 20px;
}

.plan-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

.plan-card p {
    font-size: 14px;
    color: var(--text-mid);
    margin-bottom: 20px;
    line-height: 1.8;
}

.plan-detail {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-dark);
    background: rgba(200,169,110,0.1);
    border: 1px solid rgba(200,169,110,0.3);
    padding: 6px 16px;
    border-radius: 20px;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
    background: var(--bg-white);
    padding: 100px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 64px;
    align-items: start;
}

.contact-info .section-badge { margin-bottom: 20px; }

.contact-info h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(28px, 3.5vw, 40px);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
}

.contact-info > p {
    font-size: 16px;
    color: var(--text-mid);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.contact-item > i {
    width: 42px;
    height: 42px;
    background: var(--accent);
    color: var(--primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 14px;
    color: var(--text-mid);
}

/* Contact Form */
.contact-form {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 40px;
    border: 1px solid var(--border);
}

.contact-form h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
}

.form-group label span { color: #e74c3c; }

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    color: var(--text-dark);
    background: var(--bg-white);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(200,169,110,0.15);
}

.form-group textarea { resize: vertical; }

.form-check {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
}

.form-check input {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    flex-shrink: 0;
    cursor: pointer;
}

.form-check label {
    font-size: 13px;
    color: var(--text-mid);
    cursor: pointer;
}

.form-check label span { color: #e74c3c; }

.form-success {
    text-align: center;
    padding: 48px 20px;
}

.form-success i {
    font-size: 60px;
    color: var(--success);
    margin-bottom: 20px;
}

.form-success h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
    border: none;
    padding: 0;
}

.form-success p {
    font-size: 15px;
    color: var(--text-mid);
    margin-bottom: 24px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: var(--bg-dark);
    color: rgba(255,255,255,0.8);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 20px;
}

.footer-logo .logo-ko {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
}

.footer-logo .logo-en {
    font-family: 'Montserrat', sans-serif;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--accent);
}

.footer-brand > p {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    gap: 10px;
}

.footer-social a {
    width: 38px;
    height: 38px;
    background: rgba(255,255,255,0.08);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
    font-size: 14px;
}

.footer-social a:hover {
    background: var(--accent);
    color: var(--primary);
    transform: translateY(-2px);
}

.footer-links h4,
.footer-contact h4 {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

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

.footer-links ul li a {
    font-size: 13px;
    color: rgba(255,255,255,0.55);
    transition: var(--transition);
}

.footer-links ul li a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-contact p {
    font-size: 13px;
    color: rgba(255,255,255,0.55);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact p i {
    color: var(--accent);
    width: 14px;
}

.footer-cert {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 20px;
}

.footer-cert span {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    color: var(--accent);
    background: rgba(200,169,110,0.1);
    border: 1px solid rgba(200,169,110,0.25);
    padding: 4px 12px;
    border-radius: 4px;
    letter-spacing: 1px;
    max-width: fit-content;
}

.footer-bottom {
    padding: 28px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 12px;
    color: rgba(255,255,255,0.35);
    line-height: 1.8;
}

/* ============================================================
   FLOATING BUTTONS
   ============================================================ */
.floating-buttons {
    position: fixed;
    right: 24px;
    bottom: 32px;
    z-index: 900;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.float-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
    cursor: pointer;
    text-decoration: none;
}

.float-btn.phone {
    background: #27ae60;
    color: #fff;
}

.float-btn.chat {
    background: var(--accent);
    color: var(--primary);
}

.float-btn.top {
    background: var(--primary);
    color: #fff;
    opacity: 0;
    transform: translateY(10px);
}

.float-btn.top.visible {
    opacity: 1;
    transform: translateY(0);
}

.float-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

.float-btn.top:hover { transform: translateY(-3px) scale(1.05); }

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes scrollDown {
    0% { transform: scaleY(1); transform-origin: top; }
    50% { transform: scaleY(0.3); transform-origin: top; }
    51% { transform: scaleY(0); transform-origin: bottom; }
    100% { transform: scaleY(1); transform-origin: bottom; }
}

@keyframes barFill {
    from { width: 0; }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   RESPONSIVE - TABLET (768px ~ 1024px)
   ============================================================ */
@media (max-width: 1024px) {
    .features-grid,
    .overview-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .company-grid,
    .smarthome-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    
    .process-steps {
        gap: 0;
    }
    
    .process-arrow { display: none; }
    
    .process-steps {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    
    .lifecycle-timeline {
        padding: 0 20px;
    }
}

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

    /* Nav */
    .nav-menu {
        position: fixed;
        top: 0; right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--primary);
        flex-direction: column;
        padding: 100px 32px 40px;
        transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        gap: 4px;
        align-items: flex-start;
    }
    
    .nav-menu.open { right: 0; }
    
    .nav-link {
        color: rgba(255,255,255,0.85) !important;
        font-size: 16px;
        padding: 12px 0;
        width: 100%;
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    
    .nav-cta {
        margin-top: 12px;
        padding: 12px 24px !important;
        width: 100%;
        text-align: center;
        border-radius: 8px;
    }
    
    .hamburger { display: flex; }
    .hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
    
    .menu-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.5);
        z-index: 999;
        display: none;
    }
    .menu-overlay.show { display: block; }
    .nav-menu { z-index: 1000; }

    /* Hero */
    .hero-stats {
        flex-direction: row;
        padding: 16px;
    }
    
    .stat-item { padding: 0 12px; }
    .stat-number { font-size: 22px; }
    .stat-label { font-size: 10px; }

    /* Grid overrides */
    .company-grid,
    .overview-cards,
    .features-grid,
    .plan-cards {
        grid-template-columns: 1fr;
    }

    .company-visual {
        grid-template-columns: 1fr 1fr;
    }

    .type-grid {
        grid-template-columns: 1fr;
        padding: 28px 20px;
        gap: 28px;
    }

    .type-features {
        grid-template-columns: 1fr;
    }

    .timeline-item {
        grid-template-columns: 60px 1fr;
        gap: 20px;
    }

    .timeline-dot {
        width: 60px;
        height: 60px;
        font-size: 18px;
    }

    .timeline-connector {
        margin-left: 29px;
    }

    .lifecycle-cta {
        padding: 32px 24px;
    }

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

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

    .form-row {
        grid-template-columns: 1fr;
    }

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

    .hero-scroll { display: none; }

    .floating-buttons {
        right: 16px;
        bottom: 24px;
    }

    .float-btn {
        width: 44px;
        height: 44px;
        font-size: 16px;
    }

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

@media (max-width: 480px) {
    .hero-title-main { font-size: 36px; }
    .hero-title-sub { font-size: 12px; letter-spacing: 4px; }
    
    .hero-buttons { flex-direction: column; align-items: center; }
    .hero-buttons .btn { width: 100%; max-width: 280px; }

    .hero-stats {
        justify-content: space-around;
    }
    .stat-divider { display: none; }

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

    .type-tabs { gap: 6px; }
    .tab-btn { padding: 10px 18px; font-size: 13px; }
}