/* =============================================
   Chatcar - AI 차량 진단 & 스마트 차계부
   Main Stylesheet
   ============================================= */

/* --- CSS Variables --- */
:root {
    --primary: #4F46E5;
    --primary-light: #6366F1;
    --primary-dark: #3730A3;
    --accent: #06B6D4;
    --accent-2: #10B981;
    --warn: #F59E0B;
    --danger: #EF4444;
    --bg-dark: #0A0B14;
    --bg-card: #111224;
    --bg-card-2: #161729;
    --bg-surface: #1C1D35;
    --text-primary: #F0F0FF;
    --text-secondary: #A0A3B1;
    --text-muted: #6B7280;
    --border: rgba(255,255,255,0.08);
    --border-light: rgba(255,255,255,0.12);
    --gradient-main: linear-gradient(135deg, #4F46E5, #06B6D4);
    --gradient-2: linear-gradient(135deg, #10B981, #06B6D4);
    --gradient-card: linear-gradient(145deg, #1C1D35, #111224);
    --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
    --shadow-glow: 0 0 60px rgba(79,70,229,0.3);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-sans: 'Noto Sans KR', 'Inter', sans-serif;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font-sans);
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: var(--font-sans); }
input { font-family: var(--font-sans); }
canvas { display: block; }

/* --- Utilities --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.text-gradient {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.text-gradient-2 {
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-header {
    text-align: center;
    margin-bottom: 64px;
}
.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(79,70,229,0.15);
    border: 1px solid rgba(79,70,229,0.3);
    color: #818CF8;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 16px;
    letter-spacing: 0.05em;
}
.section-title {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: 16px;
}
.section-desc {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 560px;
    margin: 0 auto;
}

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
}
.navbar.scrolled {
    background: rgba(10, 11, 20, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 40px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-main);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: white;
}
.logo-text {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}
.logo-accent {
    color: #818CF8;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    flex: 1;
}
.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    white-space: nowrap;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-actions { margin-left: auto; }
.btn-nav-primary {
    background: var(--gradient-main);
    color: white;
    font-size: 14px;
    font-weight: 600;
    padding: 10px 22px;
    border-radius: 100px;
    transition: var(--transition);
    white-space: nowrap;
    box-shadow: 0 4px 20px rgba(79,70,229,0.35);
}
.btn-nav-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 28px rgba(79,70,229,0.5);
}
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
    margin-left: auto;
}
.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* =============================================
   BUTTONS
   ============================================= */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--gradient-main);
    color: white;
    font-size: 15px;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: 100px;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(79,70,229,0.35);
    border: none;
    cursor: pointer;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(79,70,229,0.5);
}
.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    padding: 12px 28px;
    border-radius: 100px;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}
.btn-ghost:hover {
    color: var(--text-primary);
    border-color: rgba(255,255,255,0.25);
    background: rgba(255,255,255,0.05);
}
.btn-large { padding: 16px 36px; font-size: 16px; }

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 80px;
}
.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}
.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(79,70,229,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(79,70,229,0.05) 1px, transparent 1px);
    background-size: 60px 60px;
}
.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
}
.hero-glow-1 {
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(79,70,229,0.6), transparent 70%);
    top: -100px; left: -200px;
}
.hero-glow-2 {
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(6,182,212,0.4), transparent 70%);
    bottom: -100px; right: -100px;
}
.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
    width: 100%;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(79,70,229,0.12);
    border: 1px solid rgba(79,70,229,0.25);
    color: #A5B4FC;
    font-size: 13px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 100px;
    margin-bottom: 24px;
}
.hero-badge i { color: #818CF8; font-size: 12px; }
.hero-title {
    font-size: clamp(36px, 5vw, 62px);
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: -1.5px;
    margin-bottom: 24px;
}
.hero-desc {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
}
.hero-desc strong { color: var(--text-primary); }
.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 56px;
}
.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
}
.stat-item { text-align: center; }
.stat-number {
    display: block;
    font-size: 26px;
    font-weight: 800;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}
.stat-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}
.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-light);
}

/* Phone Mockup */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}
.phone-mockup {
    position: relative;
    z-index: 2;
}
.phone-frame {
    width: 280px;
    height: 560px;
    background: #0F1020;
    border-radius: 44px;
    border: 2px solid rgba(255,255,255,0.12);
    overflow: hidden;
    box-shadow: 0 40px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.06), inset 0 0 40px rgba(79,70,229,0.05);
    position: relative;
}
.phone-frame::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 28px;
    background: #0F1020;
    border-radius: 0 0 20px 20px;
    z-index: 10;
}
.phone-screen {
    padding: 32px 12px 12px;
    height: 100%;
    overflow: hidden;
}
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.app-logo-sm { font-size: 15px; font-weight: 800; color: var(--text-primary); }
.app-header-right {
    position: relative;
    color: var(--text-secondary);
    font-size: 18px;
}
.notification-dot {
    position: absolute;
    top: 0; right: 0;
    width: 6px; height: 6px;
    background: var(--danger);
    border-radius: 50%;
}
.app-dashboard { display: flex; flex-direction: column; gap: 10px; }
.car-status-card {
    background: var(--bg-surface);
    border-radius: 16px;
    padding: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--border);
}
.car-icon-wrap {
    width: 36px; height: 36px;
    background: var(--gradient-main);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}
.car-info { flex: 1; }
.car-name { font-size: 11px; font-weight: 700; color: var(--text-primary); }
.car-status { font-size: 9px; color: var(--text-muted); display: flex; align-items: center; gap: 4px; margin-top: 2px; }
.car-status.good { color: var(--accent-2); }
.status-dot { width: 5px; height: 5px; background: var(--accent-2); border-radius: 50%; }
.score-circle {
    width: 40px; height: 40px;
    position: relative;
}
.score-circle svg { transform: rotate(-90deg); }
.circle-bg {
    fill: none;
    stroke: rgba(255,255,255,0.08);
    stroke-width: 3;
}
.circle-fill {
    fill: none;
    stroke: var(--accent-2);
    stroke-width: 3;
    stroke-linecap: round;
    transition: stroke-dasharray 1s ease;
}
.score-text {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    font-size: 10px;
    font-weight: 800;
    color: var(--accent-2);
}
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}
.dash-card {
    background: var(--bg-card-2);
    border-radius: 12px;
    padding: 10px 8px;
    text-align: center;
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
}
.dash-card i { font-size: 14px; color: var(--primary-light); }
.dash-card.alert i { color: var(--warn); }
.dash-val { font-size: 12px; font-weight: 700; color: var(--text-primary); }
.dash-label { font-size: 8px; color: var(--text-muted); }
.receipt-scan-preview {
    background: rgba(16,185,129,0.1);
    border: 1px solid rgba(16,185,129,0.2);
    border-radius: 12px;
    padding: 10px 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.scan-icon {
    width: 28px; height: 28px;
    background: rgba(16,185,129,0.15);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--accent-2);
}
.scan-content { flex: 1; }
.scan-title { font-size: 9px; font-weight: 700; color: var(--accent-2); }
.scan-detail { font-size: 8px; color: var(--text-muted); margin-top: 1px; }
.scan-check { color: var(--accent-2); font-size: 16px; }
.cost-bar {
    background: var(--bg-card-2);
    border-radius: 12px;
    padding: 10px 12px;
    border: 1px solid var(--border);
}
.cost-bar-header {
    display: flex;
    justify-content: space-between;
    font-size: 9px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}
.cost-amount { font-weight: 700; color: var(--text-primary); }
.cost-bar-track {
    height: 4px;
    background: rgba(255,255,255,0.08);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 4px;
}
.cost-bar-fill {
    height: 100%;
    background: var(--gradient-main);
    border-radius: 2px;
    transition: width 1s ease;
}
.cost-bar-footer { font-size: 8px; color: var(--accent-2); }

/* Floating Cards */
.float-card {
    position: absolute;
    background: var(--bg-card-2);
    border: 1px solid var(--border-light);
    border-radius: 14px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
    z-index: 3;
}
.float-card i {
    font-size: 20px;
    width: 36px; height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
}
.float-card-1 { top: 10%; left: -100px; }
.float-card-1 i { background: rgba(79,70,229,0.2); color: var(--primary-light); }
.float-card-2 { bottom: 25%; left: -90px; }
.float-card-2 i { background: rgba(16,185,129,0.15); color: var(--accent-2); }
.float-card-3 { top: 30%; right: -80px; }
.float-card-3 i { background: rgba(6,182,212,0.15); color: var(--accent); }
.fc-title { font-size: 12px; font-weight: 700; color: var(--text-primary); }
.fc-sub { font-size: 10px; color: var(--text-muted); margin-top: 1px; }

/* Floating animations */
.float-card-1 { animation: float1 4s ease-in-out infinite; }
.float-card-2 { animation: float2 5s ease-in-out infinite; }
.float-card-3 { animation: float3 3.5s ease-in-out infinite; }
@keyframes float1 { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes float2 { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(10px); } }
@keyframes float3 { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 11px;
    letter-spacing: 0.05em;
    animation: fadeUpDown 2s ease-in-out infinite;
}
.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--primary-light), transparent);
}
@keyframes fadeUpDown { 0%, 100% { opacity: 0.4; transform: translateX(-50%) translateY(0); } 50% { opacity: 1; transform: translateX(-50%) translateY(-5px); } }

/* =============================================
   ABOUT / SERVICE INTRO
   ============================================= */
.about {
    padding: 120px 0;
    position: relative;
}
.about::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent, rgba(79,70,229,0.03), transparent);
    pointer-events: none;
}

/* Data Flow */
.data-flow {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 48px;
    margin-bottom: 64px;
    position: relative;
    overflow: hidden;
}
.data-flow::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--gradient-main);
    border-radius: 2px 2px 0 0;
}
.flow-title {
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 40px;
}
.flow-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}
.flow-input, .flow-output {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.flow-node {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    min-width: 140px;
    text-align: center;
    transition: var(--transition);
}
.flow-node:hover {
    border-color: rgba(79,70,229,0.4);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(79,70,229,0.15);
}
.flow-node-icon {
    width: 44px; height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}
.input-node .flow-node-icon {
    background: rgba(79,70,229,0.15);
    color: var(--primary-light);
}
.output-node .flow-node-icon {
    background: rgba(6,182,212,0.15);
    color: var(--accent);
}
.flow-node-label { font-size: 13px; font-weight: 700; color: var(--text-primary); }
.flow-node-sub { font-size: 11px; color: var(--text-muted); }
.flow-arrow-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}
.flow-arrow {
    width: 60px; height: 2px;
    background: linear-gradient(to right, rgba(79,70,229,0.4), rgba(6,182,212,0.4));
    position: relative;
}
.flow-arrow::after {
    content: '';
    position: absolute;
    right: -1px; top: -4px;
    width: 0; height: 0;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 8px solid rgba(6,182,212,0.6);
}
.flow-arrow-label {
    font-size: 10px;
    color: var(--text-muted);
    white-space: nowrap;
    letter-spacing: 0.05em;
}

/* AI Core */
.flow-center { position: relative; }
.flow-ai-core {
    width: 120px; height: 120px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(79,70,229,0.3), rgba(6,182,212,0.1));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
}
.ai-core-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid;
    animation: ripple 3s ease-out infinite;
}
.ring-1 { width: 100%; height: 100%; border-color: rgba(79,70,229,0.4); animation-delay: 0s; }
.ring-2 { width: 130%; height: 130%; border-color: rgba(79,70,229,0.2); animation-delay: 0.5s; }
.ring-3 { width: 160%; height: 160%; border-color: rgba(79,70,229,0.1); animation-delay: 1s; }
@keyframes ripple {
    0% { opacity: 1; transform: scale(0.9); }
    100% { opacity: 0; transform: scale(1.1); }
}
.ai-core-icon { font-size: 32px; color: #818CF8; z-index: 1; }
.ai-core-label { font-size: 11px; font-weight: 700; color: var(--primary-light); margin-top: 4px; z-index: 1; }

/* Value Props */
.value-props {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.value-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.value-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--gradient-main);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}
.value-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.value-card:hover::before { transform: scaleX(1); }
.value-icon {
    width: 56px; height: 56px;
    background: rgba(79,70,229,0.15);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary-light);
    margin-bottom: 20px;
}
.value-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}
.value-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* =============================================
   FEATURES SECTION
   ============================================= */
.features {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, rgba(79,70,229,0.04) 50%, var(--bg-dark) 100%);
}

/* Tab Navigation */
.features-tabs { max-width: 1100px; margin: 0 auto; }
.tab-nav {
    display: flex;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 6px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}
.tab-btn {
    flex: 1;
    min-width: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    transition: var(--transition);
    white-space: nowrap;
}
.tab-btn.active {
    background: var(--gradient-main);
    color: white;
    box-shadow: 0 4px 16px rgba(79,70,229,0.3);
}
.tab-btn:hover:not(.active) {
    color: var(--text-secondary);
    background: rgba(255,255,255,0.04);
}
.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.tab-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 56px;
}
.tab-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(79,70,229,0.15);
    border: 1px solid rgba(79,70,229,0.3);
    color: #818CF8;
    font-size: 12px;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: 100px;
    margin-bottom: 16px;
}
.tab-badge.new { background: rgba(16,185,129,0.15); border-color: rgba(16,185,129,0.3); color: var(--accent-2); }
.tab-info h3 {
    font-size: 30px;
    font-weight: 800;
    line-height: 1.25;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}
.tab-info p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 28px;
}
.feature-list { margin-bottom: 36px; display: flex; flex-direction: column; gap: 10px; }
.feature-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
}
.feature-list li i {
    color: var(--accent-2);
    font-size: 12px;
    flex-shrink: 0;
}

/* Diagnosis Visual */
.diagnosis-visual { display: flex; flex-direction: column; gap: 20px; align-items: center; }
.diag-score-ring {
    position: relative;
    width: 140px; height: 140px;
}
.score-svg { transform: rotate(-90deg); }
.score-track {
    fill: none;
    stroke: rgba(255,255,255,0.06);
    stroke-width: 8;
}
.score-progress {
    fill: none;
    stroke: url(#scoreGrad);
    stroke-width: 8;
    stroke-linecap: round;
    transition: stroke-dashoffset 1.5s ease;
}
.diag-score-center {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}
.diag-score-num { font-size: 32px; font-weight: 900; color: var(--text-primary); line-height: 1; }
.diag-score-label { font-size: 11px; color: var(--text-muted); margin-top: 4px; }
.diag-items { width: 100%; display: flex; flex-direction: column; gap: 12px; }
.diag-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}
.diag-item i { font-size: 16px; width: 20px; color: var(--primary-light); }
.diag-item span:first-of-type { font-size: 13px; color: var(--text-secondary); min-width: 60px; }
.diag-bar {
    flex: 1;
    height: 5px;
    background: rgba(255,255,255,0.06);
    border-radius: 3px;
    overflow: hidden;
}
.diag-bar-fill {
    height: 100%;
    background: var(--gradient-2);
    border-radius: 3px;
    transition: width 1s ease;
}
.diag-bar-fill.warn { background: linear-gradient(to right, var(--warn), #FCD34D); }
.diag-val { font-size: 11px; color: var(--accent-2); font-weight: 700; min-width: 28px; text-align: right; }
.diag-val.warn { color: var(--warn); }

/* OCR Visual */
.ocr-visual { display: flex; justify-content: center; }
.receipt-mock {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    width: 280px;
}
.receipt-top {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 16px;
}
.receipt-top i { color: var(--primary-light); }
.receipt-image {
    background: #F8F8F0;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
}
.receipt-lines { display: flex; flex-direction: column; gap: 6px; }
.r-line { font-size: 11px; color: #333; font-family: 'Courier New', monospace; }
.r-company { font-weight: 700; font-size: 12px; color: #111; }
.r-total { font-weight: 700; color: #111; }
.scan-overlay {
    position: absolute;
    inset: 0;
    background: rgba(79,70,229,0.05);
    border: 2px solid rgba(79,70,229,0.3);
    border-radius: 8px;
}
.scan-line-anim {
    position: absolute;
    left: 0; right: 0;
    height: 2px;
    background: linear-gradient(to right, transparent, var(--primary-light), transparent);
    animation: scanLine 2s ease-in-out infinite;
}
@keyframes scanLine {
    0% { top: 0; opacity: 1; }
    100% { top: 100%; opacity: 0; }
}
.ocr-result { }
.ocr-arrow {
    font-size: 11px;
    color: var(--accent-2);
    font-weight: 600;
    text-align: center;
    margin-bottom: 10px;
}
.ocr-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.ocr-tag {
    display: flex;
    align-items: center;
    gap: 4px;
    background: rgba(16,185,129,0.12);
    border: 1px solid rgba(16,185,129,0.25);
    color: var(--accent-2);
    font-size: 11px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 100px;
}
.ocr-tag i { font-size: 10px; }

/* Cost Visual */
.cost-visual {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
}

/* Maintenance Visual */
.maintenance-visual { }
.maint-list { display: flex; flex-direction: column; gap: 12px; }
.maint-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    transition: var(--transition);
}
.maint-item:hover { transform: translateX(4px); }
.maint-icon {
    width: 40px; height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}
.maint-item.danger .maint-icon { background: rgba(239,68,68,0.15); color: var(--danger); }
.maint-item.warn .maint-icon { background: rgba(245,158,11,0.15); color: var(--warn); }
.maint-item.normal .maint-icon { background: rgba(16,185,129,0.12); color: var(--accent-2); }
.maint-info { flex: 1; }
.maint-name { font-size: 14px; font-weight: 700; color: var(--text-primary); margin-bottom: 3px; }
.maint-date { font-size: 12px; color: var(--text-muted); }
.maint-status {
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 100px;
}
.maint-status.danger { background: rgba(239,68,68,0.15); color: var(--danger); }
.maint-status.warn { background: rgba(245,158,11,0.15); color: var(--warn); }
.maint-status.normal { background: rgba(16,185,129,0.12); color: var(--accent-2); }

/* Report Visual */
.report-visual { display: flex; justify-content: center; }
.report-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    width: 100%;
}
.report-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}
.report-header i { color: var(--primary-light); }
.report-insight {
    background: rgba(245,158,11,0.08);
    border: 1px solid rgba(245,158,11,0.2);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 20px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}
.insight-icon {
    width: 32px; height: 32px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.insight-icon.warn { background: rgba(245,158,11,0.15); color: var(--warn); }
.insight-text strong { font-size: 12px; font-weight: 700; color: var(--warn); display: block; margin-bottom: 4px; }
.insight-text p { font-size: 11px; color: var(--text-secondary); line-height: 1.6; }
.report-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.metric-item {
    background: var(--bg-card-2);
    border-radius: var(--radius-sm);
    padding: 12px;
    border: 1px solid var(--border);
}
.metric-label { font-size: 10px; color: var(--text-muted); display: block; margin-bottom: 4px; }
.metric-val { font-size: 15px; font-weight: 700; color: var(--text-primary); }
.metric-val.score { color: var(--accent-2); }

/* =============================================
   APP UI SECTION
   ============================================= */
.app-ui {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, rgba(6,182,212,0.03) 50%, var(--bg-dark) 100%);
}
.screens-showcase {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 40px;
    align-items: center;
}
.screen-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.screen-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    transition: var(--transition);
    border: 1px solid transparent;
    text-align: left;
    width: 100%;
}
.screen-btn.active {
    background: rgba(79,70,229,0.15);
    border-color: rgba(79,70,229,0.3);
    color: #818CF8;
}
.screen-btn:hover:not(.active) {
    background: rgba(255,255,255,0.04);
    color: var(--text-secondary);
}
.screen-btn i { width: 16px; text-align: center; }
.screen-display {
    display: flex;
    align-items: center;
    gap: 40px;
}
.screen-mockup {
    flex-shrink: 0;
}
.screen-frame {
    width: 240px;
    height: 480px;
    background: #0E0F1A;
    border-radius: 36px;
    border: 2px solid rgba(255,255,255,0.1);
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.05);
    position: relative;
}
.screen-content { display: none; padding: 0; height: 100%; overflow: hidden; }
.screen-content.active { display: block; animation: fadeIn 0.3s ease; }

/* Mock Screen Components */
.mock-status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px 4px;
    font-size: 9px;
    color: var(--text-primary);
}
.mock-icons { display: flex; gap: 4px; font-size: 8px; }
.mock-header { padding: 8px 16px 12px; }
.mock-greeting { font-size: 13px; font-weight: 800; color: var(--text-primary); }
.mock-subtitle { font-size: 10px; color: var(--text-muted); margin-top: 2px; }
.mock-score-card {
    margin: 0 12px 10px;
    background: var(--bg-surface);
    border-radius: 14px;
    padding: 12px;
    border: 1px solid var(--border);
}
.mock-car-name { font-size: 9px; color: var(--text-muted); margin-bottom: 8px; }
.mock-score-row { display: flex; align-items: center; gap: 10px; }
.mock-score-circle {
    width: 44px; height: 44px;
    background: var(--gradient-main);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    flex-shrink: 0;
}
.mock-score-num { font-size: 14px; font-weight: 900; color: white; line-height: 1; }
.mock-score-sub { font-size: 7px; color: rgba(255,255,255,0.7); }
.mock-score-info { flex: 1; }
.mock-score-label { font-size: 9px; font-weight: 700; color: var(--text-primary); }
.mock-score-status { font-size: 8px; color: var(--accent-2); margin-top: 3px; }
.mock-score-alert { font-size: 8px; color: var(--warn); margin-top: 2px; }
.mock-quick-stats {
    display: flex;
    justify-content: space-around;
    padding: 0 12px;
    margin-bottom: 8px;
}
.mock-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}
.mock-stat i { font-size: 12px; color: var(--primary-light); }
.mock-stat span { font-size: 11px; font-weight: 700; color: var(--text-primary); }
.mock-stat small { font-size: 8px; color: var(--text-muted); }
.mock-scan-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px 12px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-primary);
}
.mock-scan-header i { color: var(--text-secondary); font-size: 12px; }
.mock-camera-view {
    background: #1A1A2E;
    margin: 0 12px;
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 10px;
    position: relative;
}
.mock-receipt-frame {
    border: 2px solid rgba(79,70,229,0.5);
    border-radius: 8px;
    padding: 12px;
    position: relative;
    background: rgba(0,0,0,0.3);
    min-height: 120px;
}
.mock-scan-corner {
    position: absolute;
    width: 12px; height: 12px;
    border-color: var(--primary-light);
    border-style: solid;
}
.mock-scan-corner.tl { top: -2px; left: -2px; border-width: 2px 0 0 2px; }
.mock-scan-corner.tr { top: -2px; right: -2px; border-width: 2px 2px 0 0; }
.mock-scan-corner.bl { bottom: -2px; left: -2px; border-width: 0 0 2px 2px; }
.mock-scan-corner.br { bottom: -2px; right: -2px; border-width: 0 2px 2px 0; }
.mock-scan-line-anim {
    position: absolute;
    left: 0; right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--primary-light), transparent);
    animation: scanLine 2s ease-in-out infinite;
}
.mock-receipt-content { display: flex; flex-direction: column; gap: 5px; }
.mock-r-line { font-size: 8px; color: rgba(200,200,200,0.8); font-family: 'Courier New', monospace; }
.mock-r-line.bold { font-weight: 700; color: rgba(255,255,255,0.95); }
.mock-scan-tip { font-size: 9px; color: var(--text-muted); text-align: center; margin-top: 8px; }
.mock-scan-result { margin: 0 12px; background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.2); border-radius: 10px; padding: 10px; }
.mock-result-header { font-size: 10px; font-weight: 700; color: var(--accent-2); margin-bottom: 6px; }
.mock-result-chips { display: flex; flex-wrap: wrap; gap: 4px; }
.chip {
    background: rgba(16,185,129,0.15);
    color: var(--accent-2);
    font-size: 9px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 100px;
}
.mock-logbook-month { padding: 0 16px; font-size: 11px; font-weight: 700; color: var(--text-primary); margin-bottom: 2px; }
.mock-logbook-total { padding: 0 16px; font-size: 18px; font-weight: 900; color: var(--text-primary); margin-bottom: 10px; }
.mock-logbook-list { padding: 0 8px; display: flex; flex-direction: column; gap: 6px; }
.mock-log-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background: var(--bg-surface);
    border-radius: 10px;
    border: 1px solid var(--border);
}
.mock-log-icon {
    width: 26px; height: 26px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    flex-shrink: 0;
}
.mock-log-item.fuel .mock-log-icon { background: rgba(79,70,229,0.15); color: var(--primary-light); }
.mock-log-item.repair .mock-log-icon { background: rgba(245,158,11,0.12); color: var(--warn); }
.mock-log-info { flex: 1; }
.mock-log-name { font-size: 10px; font-weight: 700; color: var(--text-primary); }
.mock-log-date { font-size: 8px; color: var(--text-muted); margin-top: 1px; }
.mock-log-amount { font-size: 11px; font-weight: 700; color: var(--danger); }
.mock-cost-header { padding: 8px 16px; }
.mock-cost-year { font-size: 9px; color: var(--text-muted); margin-bottom: 2px; }
.mock-cost-total { font-size: 18px; font-weight: 900; color: var(--text-primary); }
.mock-cost-compare { font-size: 9px; color: var(--accent-2); margin-top: 2px; }
.mock-cost-legend { padding: 4px 16px 0; display: flex; gap: 10px; flex-wrap: wrap; }
.mock-legend-item { display: flex; align-items: center; gap: 4px; font-size: 9px; color: var(--text-secondary); }
.legend-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
}
.legend-dot.fuel { background: var(--primary-light); }
.legend-dot.repair { background: var(--warn); }
.legend-dot.other { background: var(--text-muted); }
.mock-alert-card {
    margin: 0 12px 8px;
    padding: 10px 12px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    border: 1px solid;
}
.mock-alert-card.danger { background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.2); }
.mock-alert-card.warn { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.2); }
.mock-alert-card.good { background: rgba(16,185,129,0.08); border-color: rgba(16,185,129,0.2); }
.mock-alert-icon { font-size: 16px; flex-shrink: 0; }
.mock-alert-card.danger .mock-alert-icon { color: var(--danger); }
.mock-alert-card.warn .mock-alert-icon { color: var(--warn); }
.mock-alert-card.good .mock-alert-icon { color: var(--accent-2); }
.mock-alert-info { flex: 1; }
.mock-alert-title { font-size: 10px; font-weight: 700; color: var(--text-primary); }
.mock-alert-desc { font-size: 8px; color: var(--text-muted); margin-top: 2px; }
.mock-alert-btn {
    font-size: 9px;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: 6px;
    flex-shrink: 0;
}
.mock-alert-card.danger .mock-alert-btn { background: rgba(239,68,68,0.2); color: var(--danger); }
.mock-alert-card.warn .mock-alert-btn { background: rgba(245,158,11,0.15); color: var(--warn); }
.mock-alert-card.good .mock-alert-btn { background: rgba(16,185,129,0.12); color: var(--accent-2); }

.screen-desc {
    display: none;
    flex: 1;
}
.screen-desc.active { display: block; animation: fadeIn 0.4s ease; }
.screen-desc h3 {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.3;
}
.screen-desc p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* =============================================
   TECHNOLOGY SECTION
   ============================================= */
.tech {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, rgba(16,185,129,0.03) 50%, var(--bg-dark) 100%);
}
.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}
.tech-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 36px 32px;
    position: relative;
    transition: var(--transition);
    overflow: hidden;
}
.tech-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.4);
}
.tech-card.featured {
    border-color: rgba(79,70,229,0.4);
    background: linear-gradient(145deg, rgba(79,70,229,0.08), var(--bg-card));
    box-shadow: 0 0 0 1px rgba(79,70,229,0.15), inset 0 1px 0 rgba(255,255,255,0.05);
}
.tech-card.featured:hover { box-shadow: 0 20px 50px rgba(79,70,229,0.2); }
.tech-icon {
    width: 56px; height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 16px;
}
.tech-card:not(.featured) .tech-icon { background: rgba(79,70,229,0.12); color: var(--primary-light); }
.tech-card.featured .tech-icon { background: var(--gradient-main); color: white; }
.tech-number {
    font-size: 11px;
    font-weight: 800;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}
.tech-featured-badge {
    display: inline-flex;
    background: var(--gradient-main);
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 100px;
    margin-bottom: 12px;
}
.tech-card h3 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.3;
}
.tech-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}
.tech-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}
.tech-list li {
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}
.tech-list li::before {
    content: '▹';
    color: var(--primary-light);
    flex-shrink: 0;
}
.tech-tag-group { display: flex; flex-wrap: wrap; gap: 6px; }
.tech-tag {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 10px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 100px;
    font-family: 'Inter', monospace;
}
.tech-highlight {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 40px 48px;
    display: flex;
    gap: 40px;
    align-items: center;
    justify-content: space-between;
}
.tech-highlight-content {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    flex: 1;
}
.th-icon {
    width: 56px; height: 56px;
    background: rgba(79,70,229,0.12);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary-light);
    flex-shrink: 0;
}
.tech-highlight-content h3 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 10px;
}
.tech-highlight-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}
.flow-mini {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.flow-mini-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 18px;
    font-size: 11px;
    color: var(--text-secondary);
}
.flow-mini-item.highlight {
    background: rgba(79,70,229,0.15);
    border-color: rgba(79,70,229,0.35);
    color: var(--primary-light);
}
.flow-mini-item i { font-size: 20px; }
.flow-mini-arrow { color: var(--text-muted); font-size: 18px; }

/* =============================================
   USE CASES SECTION
   ============================================= */
.cases {
    padding: 120px 0;
}
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.case-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 36px 32px;
    position: relative;
    transition: var(--transition);
}
.case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card);
}
.case-card.featured {
    border-color: rgba(79,70,229,0.4);
    background: linear-gradient(145deg, rgba(79,70,229,0.07), var(--bg-card));
}
.case-featured-tag {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-main);
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 100px;
    white-space: nowrap;
}
.case-emoji { font-size: 40px; margin-bottom: 16px; }
.case-icon {
    width: 48px; height: 48px;
    background: rgba(79,70,229,0.12);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--primary-light);
    margin-bottom: 16px;
}
.case-card h3 {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 12px;
}
.case-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}
.case-benefits { display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
.case-benefit {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
}
.case-benefit i { color: var(--accent-2); font-size: 12px; margin-top: 2px; flex-shrink: 0; }
.case-quote {
    font-size: 13px;
    color: var(--text-muted);
    font-style: italic;
    padding: 12px 16px;
    background: rgba(255,255,255,0.03);
    border-radius: var(--radius-sm);
    border-left: 2px solid rgba(79,70,229,0.4);
    line-height: 1.7;
}

/* =============================================
   CTA SECTION
   ============================================= */
.cta-section {
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}
.cta-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}
.cta-glow-1 {
    position: absolute;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(79,70,229,0.4), transparent 70%);
    top: -200px; left: -150px;
    filter: blur(80px);
    opacity: 0.6;
}
.cta-glow-2 {
    position: absolute;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(6,182,212,0.3), transparent 70%);
    bottom: -150px; right: -100px;
    filter: blur(80px);
    opacity: 0.5;
}
.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}
.cta-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(79,70,229,0.15);
    border: 1px solid rgba(79,70,229,0.3);
    color: #A5B4FC;
    font-size: 13px;
    font-weight: 600;
    padding: 8px 20px;
    border-radius: 100px;
    margin-bottom: 24px;
}
.cta-title {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 900;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -1px;
}
.cta-desc {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 48px;
}
.cta-actions { margin-bottom: 32px; }
.cta-input-group {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 16px;
}
.cta-input {
    width: 320px;
    padding: 16px 24px;
    border-radius: 100px;
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    font-size: 15px;
    outline: none;
    transition: var(--transition);
}
.cta-input:focus {
    border-color: rgba(79,70,229,0.5);
    background: rgba(79,70,229,0.08);
}
.cta-input::placeholder { color: var(--text-muted); }
.btn-cta { padding: 16px 32px; font-size: 15px; }
.cta-notice { font-size: 13px; color: var(--text-muted); }
.cta-stores {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}
.store-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--border-light);
    border-radius: 14px;
    padding: 14px 24px;
    transition: var(--transition);
    color: var(--text-primary);
}
.store-btn:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-2px);
}
.store-btn i { font-size: 24px; }
.store-sub { display: block; font-size: 10px; color: var(--text-muted); }
.store-name { display: block; font-size: 15px; font-weight: 700; }

/* =============================================
   FOOTER
   ============================================= */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    padding: 80px 0 40px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 60px;
}
.footer-brand-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-top: 16px;
    margin-bottom: 20px;
}
.footer-social {
    display: flex;
    gap: 12px;
}
.footer-social a {
    width: 36px; height: 36px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    color: var(--text-muted);
    transition: var(--transition);
}
.footer-social a:hover {
    background: rgba(79,70,229,0.15);
    border-color: rgba(79,70,229,0.3);
    color: var(--primary-light);
}
.footer-links-group h4 {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.05em;
    margin-bottom: 20px;
}
.footer-links-group ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links-group a {
    font-size: 14px;
    color: var(--text-muted);
    transition: var(--transition);
}
.footer-links-group a:hover { color: var(--text-primary); }
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-muted);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(16,185,129,0.95);
    color: white;
    padding: 14px 24px;
    border-radius: 100px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 8px 24px rgba(16,185,129,0.4);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 9999;
    white-space: nowrap;
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* =============================================
   SCROLL ANIMATIONS
   ============================================= */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}
.animate-delay-1 { transition-delay: 0.1s; }
.animate-delay-2 { transition-delay: 0.2s; }
.animate-delay-3 { transition-delay: 0.3s; }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1100px) {
    .hero-container { grid-template-columns: 1fr; gap: 60px; text-align: center; }
    .hero-content { display: flex; flex-direction: column; align-items: center; }
    .hero-cta { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-visual { justify-content: center; }
    .float-card-1 { left: -40px; }
    .float-card-2 { left: -40px; }
    .float-card-3 { right: -20px; }
    .tab-layout { grid-template-columns: 1fr; gap: 40px; }
    .screens-showcase { grid-template-columns: 1fr; }
    .screen-nav { flex-direction: row; flex-wrap: wrap; }
    .screen-display { flex-direction: column; align-items: center; }
    .screen-desc.active { text-align: center; }
    .tech-highlight { flex-direction: column; }
    .flow-mini { flex-wrap: wrap; justify-content: center; }
}

@media (max-width: 900px) {
    .nav-links, .nav-actions { display: none; }
    .hamburger { display: flex; }
    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 64px; left: 0; right: 0;
        background: rgba(10,11,20,0.97);
        border-bottom: 1px solid var(--border);
        padding: 24px;
        gap: 16px;
        backdrop-filter: blur(20px);
    }
    .nav-links.open + .nav-actions {
        display: flex;
        position: fixed;
        top: calc(64px + 180px);
        left: 24px; right: 24px;
        justify-content: center;
    }
    .value-props { grid-template-columns: 1fr; }
    .tech-grid { grid-template-columns: 1fr; }
    .cases-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .data-flow { padding: 32px 24px; }
    .flow-diagram { flex-direction: column; }
    .flow-arrow { transform: rotate(90deg); }
    .flow-arrow-group { transform: none; }
    .flow-input, .flow-output { flex-direction: row; flex-wrap: wrap; justify-content: center; }
}

@media (max-width: 640px) {
    .container { padding: 0 16px; }
    .hero-title { font-size: 32px; letter-spacing: -1px; }
    .hero-cta { flex-direction: column; align-items: center; }
    .hero-stats { gap: 20px; }
    .stat-number { font-size: 20px; }
    .tab-nav { flex-direction: column; }
    .tab-btn { justify-content: flex-start; }
    .tab-layout { padding: 32px 24px; }
    .tab-info h3 { font-size: 24px; }
    .tech-card { padding: 28px 24px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
    .cta-input-group { flex-direction: column; align-items: center; }
    .cta-input { width: 100%; max-width: 360px; }
    .phone-frame { width: 240px; height: 480px; }
    .float-card { display: none; }
    .section-title { font-size: 26px; }
    .section-desc { font-size: 15px; }
}