/* ========================================
   센스 Landing Page — Design System
   ======================================== */

/* CSS Custom Properties */
:root {
    --bg-primary: #0A0A0A;
    --bg-secondary: #111111;
    --bg-card: #161616;
    --bg-card-hover: #1C1C1C;
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);

    --text-primary: #F5F5F5;
    --text-secondary: #999999;
    --text-muted: #666666;

    --accent: #E8820C;
    --accent-light: #FFB347;
    --accent-dark: #C45A00;
    --accent-glow: rgba(232, 130, 12, 0.15);
    --accent-glow-strong: rgba(232, 130, 12, 0.3);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --font-sans: 'Inter', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;

    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

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

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

/* ========================================
   Navigation
   ======================================== */
#main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 24px;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    background: rgba(10, 10, 10, 0.7);
    border-bottom: 1px solid var(--border);
    transition: all 0.4s var(--ease-out);
}

#main-nav.scrolled {
    background: rgba(10, 10, 10, 0.92);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -0.02em;
}

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

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.3s;
    position: relative;
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s var(--ease-out);
    border-radius: 1px;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    background: var(--accent) !important;
    color: var(--bg-primary) !important;
    padding: 8px 20px;
    border-radius: 999px;
    font-weight: 600 !important;
    font-size: 0.8125rem !important;
    transition: transform 0.3s var(--ease-spring), box-shadow 0.3s !important;
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--accent-glow-strong);
}

.lang-toggle {
    display: flex;
    align-items: center;
    gap: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 4px;
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    transition: border-color 0.3s;
    overflow: hidden;
}

.lang-toggle:hover {
    border-color: var(--border-hover);
}

.lang-toggle span {
    padding: 4px 10px;
    border-radius: 999px;
    transition: all 0.3s var(--ease-out);
    line-height: 1;
}

.lang-active {
    background: var(--accent);
    color: var(--bg-primary);
}

.lang-inactive {
    color: var(--text-muted);
}

/* ========================================
   Sections (General)
   ======================================== */
.section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 24px;
}

.section-inner {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

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

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: 16px;
    padding: 6px 16px;
    background: var(--accent-glow);
    border-radius: 999px;
    border: 1px solid rgba(232, 130, 12, 0.2);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.text-gradient {
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 50%, var(--accent-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Reveal animation */
[data-reveal] {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

[data-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Hero Section
   ======================================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    z-index: 2;
    animation: heroFadeIn 1s var(--ease-out) both;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-glow);
    border: 1px solid rgba(232, 130, 12, 0.2);
    padding: 6px 16px;
    border-radius: 999px;
    margin-bottom: 24px;
    animation: heroFadeIn 1s 0.2s var(--ease-out) both;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.15;
    margin-bottom: 20px;
    animation: heroFadeIn 1s 0.3s var(--ease-out) both;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 36px;
    animation: heroFadeIn 1s 0.4s var(--ease-out) both;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
    animation: heroFadeIn 1s 0.5s var(--ease-out) both;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 999px;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all 0.3s var(--ease-spring);
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow-strong);
}

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-hover);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-muted);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-hover);
    width: 100%;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* Hero Highlights */
.hero-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    animation: heroFadeIn 1s 0.6s var(--ease-out) both;
}

.hero-highlight {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 8px 16px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    font-weight: 500;
    transition: border-color 0.3s;
}

.hero-highlight:hover {
    border-color: var(--border-hover);
}

.highlight-icon {
    font-size: 1rem;
}

.highlight-text {
    font-size: 0.8125rem;
}

/* Hero Visual — Phone Mockup */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 2;
    animation: phoneFloat 1s 0.5s var(--ease-out) both;
}

@keyframes phoneFloat {
    from { opacity: 0; transform: translateY(60px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.phone-mockup {
    width: 280px;
    background: var(--bg-secondary);
    border-radius: 32px;
    padding: 12px;
    border: 1px solid var(--border);
    position: relative;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
    animation: floatIdle 6s ease-in-out infinite;
}

@keyframes floatIdle {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.phone-screen {
    background: var(--bg-primary);
    border-radius: 22px;
    padding: 20px 16px;
    min-height: 480px;
}

.screen-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.screen-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.screen-tabs {
    display: flex;
    background: var(--bg-card);
    border-radius: 999px;
    padding: 3px;
    margin-bottom: 16px;
}

.screen-tabs .tab {
    flex: 1;
    text-align: center;
    padding: 6px 0;
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: 999px;
    color: var(--text-muted);
    transition: all 0.3s;
}

.screen-tabs .tab.active {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.screen-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 12px;
}

.screen-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 12px;
    border: 1px solid var(--border);
}

.screen-card .card-icon {
    font-size: 0.625rem;
    color: var(--accent);
    margin-bottom: 4px;
    opacity: 0.7;
}

.screen-card .card-value {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.screen-card .card-value small {
    font-size: 0.75rem;
    font-weight: 500;
}

.screen-card .card-label {
    font-size: 0.625rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.screen-chart {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 12px;
    border: 1px solid var(--border);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.chart-select {
    color: var(--accent);
    font-size: 0.6875rem;
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 60px;
    margin-bottom: 4px;
}

.chart-bar {
    flex: 1;
    height: var(--h);
    background: var(--bg-secondary);
    border-radius: 3px;
    transition: background 0.3s;
}

.chart-bar.active {
    background: var(--accent);
}

.chart-line {
    height: 2px;
    background: linear-gradient(to right, var(--accent), transparent);
    border-radius: 1px;
    margin-top: 8px;
}

.phone-glow {
    position: absolute;
    inset: -40px;
    background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
    border-radius: 50%;
}

/* Hero background grid */
.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at 70% 50%, black 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at 70% 50%, black 30%, transparent 80%);
    pointer-events: none;
    z-index: 0;
}

/* ========================================
   Features Section
   ======================================== */
.features-section {
    background: var(--bg-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all 0.4s var(--ease-out);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0;
    transition: opacity 0.4s;
}

.feature-card:hover {
    border-color: rgba(232, 130, 12, 0.2);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card-wide {
    grid-column: span 2;
}

.feature-icon {
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   Insights / Steps Section
   ======================================== */
.insights-section {
    background: var(--bg-secondary);
    overflow: hidden;
}

.steps-container {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.step {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 32px;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 40px;
    transition: all 0.4s var(--ease-out);
}

.step:hover {
    border-color: rgba(232, 130, 12, 0.15);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.step-number {
    font-size: 3rem;
    font-weight: 900;
    color: var(--accent);
    opacity: 0.25;
    line-height: 1;
    min-width: 80px;
}

.step-content h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.step-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.step-visual {
    width: 180px;
    height: 120px;
}

.step-card-demo {
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: 16px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 12px;
}

/* Demo 1: Onboarding */
.demo-1 {
    flex-direction: row;
    gap: 16px;
}

.demo-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    flex-shrink: 0;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow-strong); }
    50% { box-shadow: 0 0 0 12px transparent; }
}

.demo-lines {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.demo-line {
    height: 6px;
    background: var(--bg-card);
    border-radius: 3px;
}

/* Demo 2: Timer */
.demo-timer {
    font-size: 2rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    color: var(--accent);
    letter-spacing: -0.02em;
}

.demo-wave {
    width: 100%;
    height: 24px;
}

.demo-wave svg {
    width: 100%;
    height: 100%;
}

.demo-wave path {
    animation: waveDash 2s linear infinite;
    stroke-dasharray: 10 5;
}

@keyframes waveDash {
    to { stroke-dashoffset: -30; }
}

/* Demo 3: Chart */
.demo-3 {
    flex-direction: row;
    justify-content: space-between;
}

.demo-bars {
    display: flex;
    align-items: flex-end;
    gap: 4px;
    height: 70px;
}

.demo-bar {
    width: 14px;
    height: var(--h);
    background: var(--accent);
    border-radius: 3px;
    opacity: 0.6;
}

.demo-bar:last-child {
    opacity: 1;
}

.demo-percent {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
}

.insights-glow {
    position: absolute;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 400px;
    height: 400px;
    background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
}

/* ========================================
   Testimonials Section
   ======================================== */
.testimonials-section {
    background: var(--bg-primary);
}

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

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: all 0.4s var(--ease-out);
}

.testimonial-card:hover {
    border-color: rgba(232, 130, 12, 0.15);
    transform: translateY(-4px);
}

.testimonial-stars {
    color: var(--accent);
    font-size: 0.875rem;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.capability-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.pricing-price-tbd {
    font-size: 2rem;
    color: var(--accent);
}

.pricing-price-tbd span {
    font-size: 2rem;
    font-weight: 900;
    color: var(--text-primary);
}

.testimonial-card > p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.875rem;
}

.author-name {
    font-size: 0.875rem;
    font-weight: 600;
}

.author-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ========================================
   Pricing Section
   ======================================== */
.pricing-section {
    background: var(--bg-secondary);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: start;
}

.pricing-grid-two {
    grid-template-columns: repeat(2, 1fr);
    max-width: 800px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    text-align: center;
    transition: all 0.4s var(--ease-out);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
}

.pricing-card-featured {
    border-color: var(--accent);
    background: linear-gradient(180deg, rgba(232, 130, 12, 0.06) 0%, var(--bg-card) 50%);
    transform: scale(1.05);
    box-shadow: 0 20px 60px rgba(232, 130, 12, 0.1);
}

.pricing-card-featured:hover {
    transform: scale(1.05) translateY(-4px);
    border-color: var(--accent);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--bg-primary);
    padding: 4px 20px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
}

.pricing-tier {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    margin-bottom: 28px;
}

.pricing-price span {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 32px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.pricing-features li {
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding-left: 4px;
}

.pricing-features li:has(✗) {
    opacity: 0.4;
}

/* ========================================
   Download / CTA Section
   ======================================== */
.download-section {
    background: var(--bg-primary);
    overflow: hidden;
}

.download-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.download-content h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 20px;
}

.download-content p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.download-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.store-badge {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px 24px;
    transition: all 0.3s var(--ease-out);
    cursor: pointer;
}

.store-badge:hover {
    border-color: var(--accent);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.store-badge small {
    font-size: 0.625rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: block;
}

.store-badge strong {
    font-size: 1rem;
    font-weight: 700;
    display: block;
}

.download-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    height: 500px;
    background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    opacity: 0.6;
}

/* ========================================
   Footer
   ======================================== */
#footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 64px 24px 32px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    margin-bottom: 48px;
    gap: 40px;
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 12px;
}

.footer-links-group {
    display: flex;
    gap: 64px;
}

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

.footer-col h4 {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.footer-col a {
    font-size: 0.875rem;
    color: var(--text-muted);
    transition: color 0.3s;
}

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

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

.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.footer-dev-contact a {
    font-size: 0.8125rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-dev-contact a:hover {
    color: var(--text-primary);
    text-decoration: underline;
}

.footer-socials {
    display: flex;
    gap: 16px;
}

.footer-socials a {
    font-size: 1rem;
    color: var(--text-muted);
    transition: color 0.3s, transform 0.3s;
}

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

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
    .hero-section {
        flex-direction: column;
        padding-top: 100px;
        gap: 48px;
        text-align: center;
    }

    .hero-inner {
        flex-direction: column;
        gap: 48px;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-highlights {
        justify-content: center;
    }

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

    .feature-card-wide {
        grid-column: span 2;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .pricing-grid,
    .pricing-grid-two {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .pricing-card-featured {
        transform: scale(1);
    }

    .pricing-card-featured:hover {
        transform: translateY(-4px);
    }

    .footer-top {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .nav-links {
        gap: 16px;
    }

    .nav-links a:not(.nav-cta):not(.lang-toggle) {
        display: none;
    }

    .hero-section {
        padding-top: 80px;
        min-height: auto;
    }

    .phone-mockup {
        width: 240px;
    }

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

    .feature-card-wide {
        grid-column: span 1;
    }

    .step {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 32px 24px;
    }

    .step-visual {
        width: 100%;
        max-width: 240px;
        margin: 0 auto;
    }

    .section {
        padding: 80px 20px;
        min-height: auto;
    }

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .footer-links-group {
        gap: 32px;
        flex-wrap: wrap;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

/* ========================================
   Custom Scrollbar
   ======================================== */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-hover);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ========================================
   Selection
   ======================================== */
::selection {
    background: var(--accent);
    color: var(--bg-primary);
}