:root {
    /* Color Palette - Premium Dark Theme */
    --bg-dark: #05050A;
    --text-primary: #FFFFFF;
    --text-secondary: #A0A5B5;
    --text-muted: #646A7A;

    /* Brand Accent Colors */
    --accent-blue: #3A86FF;
    --accent-purple: #8338EC;
    --accent-gradient: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));

    /* Glassmorphism Variables */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-highlight: rgba(255, 255, 255, 0.15);

    /* Typography */
    --font-en: 'Outfit', sans-serif;
    --font-kr: 'Pretendard', sans-serif;

    /* Sizing & Spacing */
    --nav-height: 80px;
    --container-width: 1200px;
    --section-spacing: 140px;
    --card-radius: 20px;
    --btn-radius: 12px;
}

/* =========================================
   Reset & Base Styles
   ========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

/* Typography Mixins */
h1,
h2,
h3,
h4,
h5,
h6,
.outfit-font {
    font-family: var(--font-en);
    /* Mixed font trick: En first, fallback Kr */
    font-family: var(--font-en), var(--font-kr);
}

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

.text-gradient {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text {
    background: linear-gradient(90deg, #E0E5FF, #8A9AFF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Layout Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 2;
    /* Above 3D Background */
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

/* =========================================
   Spline 3D Background
   ========================================= */
.spline-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.spline-bg spline-viewer {
    width: 100%;
    height: 100%;
    display: block;
    --spline-viewer-bg: transparent;
}

/* Overlay for contrast / vignette */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: radial-gradient(ellipse at 50% 40%, transparent 0%, var(--bg-dark) 70%);
    z-index: 1;
    pointer-events: none;
}

/* =========================================
   Components (Buttons, Cards, Badges)
   ========================================= */

/* Glass Card Reusable */
.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--card-radius);
    padding: 40px;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: var(--glass-highlight);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--btn-radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.btn-large {
    padding: 16px 36px;
    font-size: 18px;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(131, 56, 236, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 8px 25px rgba(131, 56, 236, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    backdrop-filter: blur(4px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--glass-highlight);
    color: white;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: white;
}

.btn-block {
    width: 100%;
}

.glow-btn {
    position: relative;
    overflow: hidden;
}

.glow-btn::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: rotate(45deg);
    animation: btnShine 3s infinite;
}

@keyframes btnShine {
    0% {
        left: -100%;
    }

    20% {
        left: 100%;
    }

    100% {
        left: 100%;
    }
}

/* Badge */
.badge-wrapper {
    margin-bottom: 24px;
}

.badge {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 100px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

/* =========================================
   Navigation
   ========================================= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    z-index: 100;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
}

.navbar.scrolled {
    background: rgba(5, 5, 10, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo a {
    font-family: var(--font-en);
    font-size: 28px;
    font-weight: 700;
    color: white;
    text-decoration: none;
    letter-spacing: -0.5px;
}

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

.nav-links a:not(.btn) {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:not(.btn):hover {
    color: white;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: white;
    transition: 0.3s;
}

/* =========================================
   Sections General
   ========================================= */
section {
    padding: var(--section-spacing) 0;
    position: relative;
    z-index: 2;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-desc {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 64px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Reveal Animation Class */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* =========================================
   Hero Section
   ========================================= */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-height);
}

.hero-title {
    font-size: 72px;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 22px;
    color: var(--text-secondary);
    margin-bottom: 48px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

/* =========================================
   Why Now Section
   ========================================= */
.why-section .glass-card {
    padding: 40px 32px;
}

.icon-wrapper {
    font-size: 48px;
    margin-bottom: 24px;
}

.why-section h3 {
    font-size: 22px;
    margin-bottom: 12px;
}

.why-section p {
    color: var(--text-secondary);
}

/* =========================================
   What Solves Section
   ========================================= */
.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin-bottom: 24px;
    border: 1px solid var(--glass-border);
}

.feature h3 {
    font-size: 24px;
    margin-bottom: 16px;
}

.feature p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* =========================================
   Modules Section
   ========================================= */
.module-card {
    position: relative;
    overflow: hidden;
}

.module-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glass-highlight), transparent);
}

.module-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
}

.module-number {
    font-family: var(--font-en);
    font-size: 16px;
    font-weight: 700;
    color: var(--accent-blue);
    background: rgba(58, 134, 255, 0.1);
    padding: 4px 12px;
    border-radius: 100px;
}

.module-header h3 {
    font-size: 28px;
    font-family: var(--font-en);
}

.module-card p {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 24px;
    min-height: 72px;
}

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

.module-tags span {
    font-size: 13px;
    padding: 6px 12px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.05);
    color: #C0C5D5;
}

/* =========================================
   Unified Admin Section
   ========================================= */
.admin-layout {
    display: flex;
    align-items: center;
    gap: 64px;
}

.admin-content {
    flex: 1;
}

.admin-visual {
    flex: 1;
}

/* Accordion */
.accordion-wrapper {
    margin-top: 40px;
}

.accordion-item {
    border-bottom: 1px solid var(--glass-border);
}

.accordion-item:last-child {
    border-bottom: none;
}

.accordion-header {
    width: 100%;
    background: none;
    border: none;
    text-align: left;
    padding: 24px 0;
    font-size: 20px;
    font-weight: 600;
    color: white;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: inherit;
}

.accordion-header span {
    font-family: var(--font-en);
}

.accordion-header .icon-plus {
    position: relative;
    width: 20px;
    height: 20px;
}

.accordion-header .icon-plus::before,
.accordion-header .icon-plus::after {
    content: '';
    position: absolute;
    background: white;
    transition: 0.3s ease;
}

.accordion-header .icon-plus::before {
    top: 9px;
    left: 0;
    width: 20px;
    height: 2px;
}

.accordion-header .icon-plus::after {
    top: 0;
    left: 9px;
    width: 2px;
    height: 20px;
}

.accordion-item.active .icon-plus::after {
    transform: rotate(90deg);
    opacity: 0;
}

.accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    color: var(--text-secondary);
}

.accordion-item.active .accordion-body {
    max-height: 400px;
    padding-bottom: 24px;
}

/* Dashboard Mockup (CSS Art Base) */
.dashboard-mockup {
    padding: 24px;
    aspect-ratio: 4/3;
    display: flex;
    flex-direction: column;
}

/* Dynamic Mockups Positioning */
.admin-visual.relative-container {
    position: relative;
    aspect-ratio: 4/3;
    width: 100%;
}

.mockup-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    pointer-events: none;
    transform: translateY(20px) scale(0.98);
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.mockup-item.active {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0) scale(1);
    z-index: 2;
}

.mockup-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 12px;
}

.mockup-title {
    margin-left: auto;
    font-size: 14px;
    color: var(--text-secondary);
    font-family: var(--font-en);
    letter-spacing: 0.5px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red {
    background: #FF5F56;
}

.dot.yellow {
    background: #FFBD2E;
}

.dot.green {
    background: #27C93F;
}

.mockup-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Mockup A: Token Lifecycle (Revised Pipeline) */
.mockup-a-layout {
    gap: 32px;
}

.lifecycle-pipeline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 20px 0;
}

.pipeline-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    z-index: 2;
}

.step-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    /* Reduced from 24px for slightly better fit with emojis */
    font-weight: 700;
    font-family: var(--font-en);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.prep-icon {
    color: #FFBD2E;
    border-color: rgba(255, 189, 46, 0.3);
}

.mint-icon {
    color: #27C93F;
    border-color: rgba(39, 201, 63, 0.3);
}

.burn-icon {
    color: #FF5F56;
    border-color: rgba(255, 95, 86, 0.3);
}

.reserve-icon {
    color: var(--accent-blue);
    border-color: rgba(58, 134, 255, 0.5);
    background: rgba(58, 134, 255, 0.1);
    box-shadow: 0 0 15px rgba(58, 134, 255, 0.2);
}

.highlight-step .step-icon {
    transform: scale(1.1);
    animation: iconPulse 2s infinite;
}

@keyframes iconPulse {
    0% {
        box-shadow: 0 0 10px rgba(58, 134, 255, 0.2);
    }

    50% {
        box-shadow: 0 0 25px rgba(58, 134, 255, 0.6);
    }

    100% {
        box-shadow: 0 0 10px rgba(58, 134, 255, 0.2);
    }
}

.step-label {
    text-align: center;
    font-size: 13px;
    font-weight: 600;
    line-height: 1.4;
}

.step-label span {
    font-size: 11px;
    color: var(--text-secondary);
    font-family: var(--font-en);
    font-weight: 400;
}

.pipeline-arrow-container {
    flex: 1;
    height: 2px;
    background: var(--glass-border);
    position: relative;
    margin: 0 10px;
    top: -16px;
    /* Align with center of circle */
}

.pipeline-arrow {
    position: absolute;
    top: -4px;
    left: 0;
    width: 10px;
    height: 10px;
    border-top: 2px solid var(--accent-blue);
    border-right: 2px solid var(--accent-blue);
    transform: rotate(45deg);
    animation: moveArrow 2s infinite linear;
}

@keyframes moveArrow {
    0% {
        left: 0;
        opacity: 0;
    }

    20% {
        opacity: 1;
    }

    80% {
        opacity: 1;
    }

    100% {
        left: calc(100% - 14px);
        opacity: 0;
    }
}

/* Mockup B: Ledger & Settlement */
.mockup-b-layout {
    gap: 12px;
}

.ledger-row {
    display: grid;
    grid-template-columns: 2fr 3fr 2fr;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    font-family: var(--font-en);
    font-size: 14px;
    align-items: center;
}

.ledger-row.heading {
    background: transparent;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 8px;
}

.status-badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    text-align: center;
}

.status-badge.success {
    background: rgba(39, 201, 63, 0.1);
    color: #27C93F;
}

.status-badge.pending {
    background: rgba(255, 189, 46, 0.1);
    color: #FFBD2E;
}

.settlement-total {
    margin-top: auto;
    padding: 16px;
    background: linear-gradient(90deg, rgba(58, 134, 255, 0.1), transparent);
    border-radius: 8px;
    border-left: 3px solid var(--accent-blue);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.settlement-total span {
    color: var(--text-secondary);
    font-size: 14px;
}

.settlement-total strong {
    font-family: var(--font-en);
    font-size: 20px;
    color: white;
}

/* Mockup C: Risk Control */
.mockup-c-layout {
    align-items: center;
    justify-content: center;
    gap: 32px;
}

.shield-container {
    text-align: center;
}

.shield-icon {
    width: 64px;
    height: 72px;
    border: 3px solid var(--accent-blue);
    border-radius: 0 0 32px 32px;
    margin: 0 auto 16px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px rgba(58, 134, 255, 0.2);
}

.shield-icon::before {
    content: '';
    position: absolute;
    top: -12px;
    left: -3px;
    width: calc(100% + 6px);
    height: 24px;
    border: 3px solid var(--accent-blue);
    border-radius: 50%;
    border-bottom: none;
}

.shield-inner {
    width: 24px;
    height: 24px;
    background: var(--accent-blue);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(0.95);
        opacity: 0.8;
    }

    50% {
        transform: scale(1.1);
        opacity: 1;
        box-shadow: 0 0 15px var(--accent-blue);
    }

    100% {
        transform: scale(0.95);
        opacity: 0.8;
    }
}

.shield-status {
    color: #27C93F;
    font-weight: 600;
    font-family: var(--font-en);
    letter-spacing: 1px;
}

.alert-log-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.alert-log {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-en);
}

.alert-log i {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-style: normal;
    font-weight: bold;
    font-size: 12px;
}

.alert-log.warning {
    background: rgba(255, 95, 86, 0.05);
    border: 1px solid rgba(255, 95, 86, 0.2);
    color: #FF5F56;
}

.alert-log.warning i {
    background: #FF5F56;
    color: white;
}

.alert-log.info {
    background: rgba(58, 134, 255, 0.05);
    border: 1px solid rgba(58, 134, 255, 0.2);
    color: var(--text-secondary);
}

.alert-log.info i {
    background: var(--accent-blue);
    color: white;
}

/* Mockup D: Analytics Dashboard Update */

.mockup-chart {
    height: 120px;
    background: linear-gradient(180deg, rgba(58, 134, 255, 0.1) 0%, transparent 100%);
    border-radius: 12px;
    border-bottom: 2px solid var(--accent-blue);
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 12px 16px 0;
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    height: 70px;
    width: 100%;
    padding: 0 8px;
}

.chart-bar {
    width: 12%;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px 4px 0 0;
    transition: background 0.3s;
}

.chart-bar.active-bar {
    background: var(--accent-blue);
    box-shadow: 0 0 15px rgba(58, 134, 255, 0.4);
}

.chart-labels {
    display: flex;
    justify-content: space-between;
    width: 100%;
    padding: 8px;
    font-size: 10px;
    color: var(--text-secondary);
    font-family: var(--font-en);
}

.mockup-stat.with-data {
    height: 80px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 16px;
    gap: 4px;
}

.stat-label {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-family: var(--font-en);
}

.stat-value {
    font-size: 20px;
    font-weight: 700;
    font-family: var(--font-en);
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.stat-value small {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
}

.stat-value .text-green {
    color: #27C93F;
}

.mockup-timeline.with-data {
    height: 40px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 12px;
}

.timeline-status-dot {
    width: 8px;
    height: 8px;
    background: #27C93F;
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(39, 201, 63, 0.5);
    animation: statusBlink 2s infinite;
}

@keyframes statusBlink {
    0% {
        opacity: 0.4;
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0.4;
    }
}

.timeline-text {
    font-size: 12px;
    color: var(--text-secondary);
    font-family: var(--font-en);
}

/* =========================================
   Use Cases Section (Tabs)
   ========================================= */
.tabs {
    margin-top: 40px;
}

.tab-list {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
}

.tab-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    padding: 16px 32px;
    border-radius: 100px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.tab-btn.active {
    background: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
    box-shadow: 0 4px 15px rgba(58, 134, 255, 0.3);
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.usecase-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.usecase-info h3 {
    font-size: 32px;
    margin-bottom: 24px;
}

.usecase-info p {
    color: var(--text-secondary);
    font-size: 18px;
    margin-bottom: 24px;
}

.recommended-modules {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
    align-items: center;
}

.rec-modules-title {
    width: 100%;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 2px;
    letter-spacing: 0.5px;
}

.module-badge {
    background: rgba(58, 134, 255, 0.1);
    color: #fff;
    border: 1px solid rgba(58, 134, 255, 0.3);
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.3px;
    white-space: nowrap;
    box-shadow: 0 0 10px rgba(58, 134, 255, 0.1) inset;
}

.mt-4 {
    margin-top: 1rem;
}

.checklist {
    list-style: none;
}

.checklist li {
    position: relative;
    padding-left: 32px;
    margin-bottom: 16px;
    font-size: 16px;
}

.checklist li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 2px;
    color: var(--accent-blue);
    font-weight: bold;
    font-size: 18px;
}

.checklist li strong {
    color: white;
    margin-right: 8px;
}

.usecase-visual {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-style: dashed;
    border-color: var(--glass-highlight);
}

.visual-placeholder {
    color: var(--text-muted);
    font-family: var(--font-en);
}

/* =========================================
   Demo Showcase
   ========================================= */
.demo-mobile-wrapper {
    display: flex;
    justify-content: center;
    margin-top: 64px;
}

.device-mockup {
    width: 320px;
    height: 650px;
    background: #000;
    border: 12px solid #222;
    border-radius: 40px;
    position: relative;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.device-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 25px;
    background: #222;
    border-bottom-left-radius: 16px;
    border-bottom-right-radius: 16px;
    z-index: 10;
}

.device-screen {
    width: 100%;
    height: 100%;
    background: #111;
    position: relative;
}

.demo-app-ui {
    padding: 60px 24px 24px;
    text-align: left;
}

.app-header {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.app-balance span {
    font-size: 14px;
    color: #888;
}

.app-balance h2 {
    font-size: 32px;
    margin-top: 4px;
    margin-bottom: 32px;
}

.app-action-btns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 40px;
}

.app-action-btns button {
    background: #222;
    color: white;
    border: none;
    padding: 16px 0;
    border-radius: 16px;
    font-size: 15px;
    font-weight: 600;
}

.app-action-btns button:first-child {
    background: var(--accent-blue);
}

.app-tx-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.tx-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tx-info div {
    font-weight: 500;
}

.tx-info small {
    color: #888;
}

.tx-amount {
    font-weight: 600;
}

.tx-amount.negative {
    color: white;
}

.tx-amount.positive {
    color: var(--accent-blue);
}

/* =========================================
   Forms Section
   ========================================= */
.form-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
}

.form-group.full-width {
    grid-column: 1 / -1;
    margin-bottom: 24px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group select {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    color: white;
    padding: 16px;
    border-radius: var(--btn-radius);
    font-size: 16px;
    font-family: inherit;
    transition: 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: rgba(0, 0, 0, 0.4);
}

/* Custom Checkbox */
.checkbox-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 8px;
}

.custom-checkbox {
    display: flex;
    align-items: center;
    position: relative;
    padding-left: 32px;
    cursor: pointer;
    font-size: 15px;
    user-select: none;
}

.custom-checkbox input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    height: 22px;
    width: 22px;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    transition: 0.2s;
}

.custom-checkbox:hover input~.checkmark {
    background-color: rgba(255, 255, 255, 0.2);
}

.custom-checkbox input:checked~.checkmark {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.custom-checkbox input:checked~.checkmark:after {
    display: block;
}

.custom-checkbox .checkmark:after {
    left: 7px;
    top: 3px;
    width: 6px;
    height: 12px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.privacy-check {
    margin-top: 32px;
    margin-bottom: 32px;
}

.privacy-check .custom-checkbox {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Success Message */
.hidden {
    display: none !important;
}

.thank-you-msg {
    padding: 60px 0;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: rgba(39, 201, 63, 0.1);
    color: #27C93F;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    margin: 0 auto 24px;
}

.thank-you-msg h3 {
    font-size: 28px;
    margin-bottom: 16px;
}

.thank-you-msg p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* =========================================
   언어 선택 드롭다운
   ========================================= */
.lang-selector {
    position: relative;
    display: inline-block;
}

/* 모바일 전용 언어 버튼 (데스크탑에서는 숨김) */
.lang-selector.mobile-lang {
    display: none;
}

.lang-btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 160px;
    background: rgba(15, 15, 25, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.25s ease;
    z-index: 1000;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.lang-dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown button {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
    font-family: inherit;
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.lang-dropdown button:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

/* =========================================
   Footer
   ========================================= */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--glass-border);
    background: rgba(5, 5, 10, 0.8);
    position: relative;
    z-index: 2;
}

.footer-content {
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 60px;
}

.footer-logo {
    font-family: var(--font-en);
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
}

.footer-logo-icon {
    color: var(--accent-blue);
    margin-right: 4px;
}

.footer-info p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 2;
    margin: 0;
}

.footer-bottom {
    margin-top: 32px;
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-privacy {
    color: var(--text-secondary);
    text-decoration: underline;
    font-size: 14px;
    transition: color 0.2s;
}

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

.footer-copy {
    color: var(--text-muted);
    font-size: 13px;
}

/* =========================================
   Responsive Design
   ========================================= */
@media screen and (max-width: 1024px) {
    .hero-title {
        font-size: 56px;
    }

    .grid-3 {
        grid-template-columns: 1fr;
    }

    .admin-layout {
        flex-direction: column;
    }

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

    .usecase-visual {
        max-width: 400px;
        margin: 0 auto;
    }
}

/* =========================================
   Use Cases Dynamic Mockups
   ========================================= */
.mockup-area {
    padding: 24px;
    height: 100%;
    min-height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

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

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

/* Tab 1: Ecosystem (Brand Coin) */
.eco-center {
    position: relative;
    width: 100%;
    height: 250px;
}

.eco-node {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 12px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    z-index: 2;
}

.center-node {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(58, 134, 255, 0.15);
    border-color: rgba(58, 134, 255, 0.4);
    box-shadow: 0 0 20px rgba(58, 134, 255, 0.2);
    animation: glowPulse 2s infinite alternate;
}

.center-node .icon {
    font-size: 32px;
}

.side-node .icon {
    font-size: 24px;
}

.node-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
}

.node-1 {
    top: 10%;
    left: 20%;
    transform: translate(-50%, 0);
}

.node-2 {
    top: 50%;
    right: 10%;
    transform: translate(0, -50%);
}

.node-3 {
    bottom: 10%;
    left: 20%;
    transform: translate(-50%, 0);
}

.eco-line {
    position: absolute;
    background: linear-gradient(90deg, transparent, rgba(58, 134, 255, 0.5), transparent);
    height: 2px;
    z-index: 1;
    transform-origin: left center;
}

.line-1 {
    top: 30%;
    left: 30%;
    width: 100px;
    transform: rotate(30deg);
    animation: pulseOpacity 2s infinite;
}

.line-2 {
    top: 50%;
    left: 50%;
    width: 120px;
    transform: rotate(0deg);
    animation: pulseOpacity 2.5s infinite reverse;
}

.line-3 {
    bottom: 30%;
    left: 30%;
    width: 100px;
    transform: rotate(-30deg);
    animation: pulseOpacity 2.2s infinite;
}

@keyframes pulseOpacity {

    0%,
    100% {
        opacity: 0.2;
    }

    50% {
        opacity: 1;
    }
}

/* Tab 2: Use Case Pipeline */
.usecase-pipeline {
    transform: scale(0.9);
}

/* Tab 3: Mini Dashboard */
.mini-dashboard {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.portfolio-total {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
}

.asset-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.asset-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    gap: 16px;
    transition: background 0.3s;
}

.asset-item:hover {
    background: rgba(255, 255, 255, 0.08);
}

.asset-icon {
    font-size: 24px;
    background: rgba(255, 255, 255, 0.1);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.asset-info {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    flex: 1;
}

.asset-name {
    font-size: 14px;
    font-weight: 500;
}

.asset-amount {
    font-size: 14px;
    color: var(--text-secondary);
    font-family: var(--font-en);
}

/* Tab 4: STO Fragmentation */
.sto-fragmentation {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 24px;
}

.sto-building {
    font-size: 48px;
}

.sto-arrow {
    color: var(--accent-blue);
    font-size: 24px;
    animation: pulseOpacity 2s infinite;
}

.sto-tokens {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.sto-token {
    width: 20px;
    height: 20px;
    background: rgba(58, 134, 255, 0.2);
    border: 1px solid rgba(58, 134, 255, 0.5);
    border-radius: 4px;
    animation: glowPulse 2s infinite alternate;
}

.sto-token:nth-child(even) {
    animation-delay: 0.5s;
    background: rgba(39, 201, 63, 0.2);
    border-color: rgba(39, 201, 63, 0.5);
}

.sto-status {
    width: 100%;
    justify-content: center;
}


@media screen and (max-width: 768px) {
    :root {
        --section-spacing: 80px;
        --card-radius: 16px;
        --nav-height: 64px;
    }

    /* ── 글로벌 모바일 텍스트 오버플로우 방지 ── */
    .hero-title,
    .section-title,
    .section-desc,
    .hero-subtitle,
    .accordion-body p,
    .usecase-info h3,
    .usecase-info p,
    .feature h3,
    .feature p,
    .why-section h3,
    .why-section p,
    .module-card p,
    .checklist li,
    .form-header p {
        overflow-wrap: break-word;
        word-wrap: break-word;
    }

    /* ── 네비게이션 모바일 ── */
    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--nav-height));
        background: rgba(5, 5, 10, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: 24px;
        transform: translateY(-100%);
        opacity: 0;
        transition: 0.4s ease;
        visibility: hidden;
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .logo a {
        font-size: 22px;
    }

    .nav-container {
        padding: 0 16px;
    }

    /* 네비게이션 내부 언어 선택기 숨김, 모바일 전용 표시 */
    .nav-links .lang-selector {
        display: none;
    }

    .lang-selector.mobile-lang {
        display: inline-block;
        margin-right: 8px;
        flex-shrink: 0;
    }

    .lang-selector.mobile-lang .lang-btn {
        padding: 5px 10px;
        font-size: 12px;
    }

    /* ── Hero 섹션 ── */
    .hero-title {
        font-size: 32px;
        letter-spacing: -1px;
        word-break: normal;
        overflow-wrap: break-word;
    }

    .hero-subtitle {
        font-size: 16px;
        padding: 0 8px;
        word-break: keep-all;
        overflow-wrap: break-word;
        max-width: 100%;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
        padding: 0 16px;
    }

    .hero-cta .btn {
        width: 100%;
    }

    /* ── 그리드 레이아웃 ── */
    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    /* ── 섹션 타이포그래피 ── */
    .section-title {
        font-size: 28px;
        word-break: keep-all;
    }

    .section-desc {
        font-size: 15px;
        margin-bottom: 40px;
        padding: 0 8px;
        word-break: keep-all;
        overflow-wrap: break-word;
        max-width: 100%;
    }

    /* ── 카드 공통 ── */
    .glass-card {
        padding: 24px 20px;
    }

    /* ── Why Now 섹션 ── */
    .why-section .glass-card {
        padding: 28px 20px;
    }

    .icon-wrapper {
        font-size: 36px;
        margin-bottom: 16px;
    }

    .why-section h3 {
        font-size: 18px;
    }

    /* ── What Solves 섹션 ── */
    .feature-icon {
        width: 48px;
        height: 48px;
        font-size: 24px;
        margin-bottom: 16px;
    }

    .feature h3 {
        font-size: 20px;
    }

    .feature p {
        font-size: 14px;
    }

    /* ── 모듈 카드 ── */
    .module-header h3 {
        font-size: 22px;
    }

    .module-card p {
        font-size: 14px;
        min-height: auto;
        margin-bottom: 16px;
    }

    .module-tags span {
        font-size: 12px;
    }

    /* ── Unified Admin 섹션 ── */
    .admin-layout {
        flex-direction: column;
        gap: 32px;
    }

    .admin-content .section-desc {
        max-width: 100%;
    }

    .admin-content .gradient-text {
        font-size: 18px;
    }

    /* 아코디언 모바일 최적화 */
    .accordion-header {
        font-size: 16px;
        padding: 20px 0;
    }

    .accordion-header span {
        font-size: 15px;
    }

    .accordion-body {
        font-size: 14px;
    }

    .accordion-item.active .accordion-body {
        max-height: 500px;
    }

    /* 목업 영역 모바일 */
    .admin-visual.relative-container {
        aspect-ratio: auto;
        min-height: 280px;
    }

    .dashboard-mockup {
        padding: 16px;
        aspect-ratio: auto;
        min-height: 260px;
    }

    .mockup-header {
        margin-bottom: 16px;
    }

    .mockup-title {
        font-size: 12px;
    }

    /* 목업 A: Token Lifecycle */
    .lifecycle-pipeline {
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
        padding: 8px 0;
    }

    .pipeline-arrow-container {
        flex: 0 0 30px;
        margin: 0;
        top: -12px;
    }

    .step-icon {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }

    .step-label {
        font-size: 11px;
    }

    .step-label span {
        font-size: 10px;
    }

    /* 목업 B: Ledger */
    .ledger-row {
        font-size: 12px;
        padding: 8px 10px;
        grid-template-columns: 2fr 3fr 2fr;
    }

    .ledger-row.heading {
        font-size: 10px;
    }

    .settlement-total {
        flex-direction: column;
        gap: 4px;
        align-items: flex-start;
    }

    .settlement-total strong {
        font-size: 16px;
    }

    /* 목업 C: Risk Control */
    .alert-log {
        font-size: 11px;
        padding: 10px 12px;
        gap: 8px;
    }

    /* 목업 D: Analytics */
    .mockup-chart {
        height: 100px;
    }

    .stat-value {
        font-size: 16px;
    }

    .mockup-stat.with-data {
        height: 65px;
        padding: 0 12px;
    }

    /* ── Use Case 섹션 ── */
    .tab-list {
        flex-wrap: nowrap;
        gap: 8px;
        justify-content: flex-start;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        padding-bottom: 8px;
    }

    .tab-list::-webkit-scrollbar {
        display: none;
    }

    .tab-btn {
        padding: 10px 16px;
        font-size: 13px;
        flex: 0 0 auto;
    }

    .usecase-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .usecase-info h3 {
        font-size: 24px;
        word-break: keep-all;
    }

    .usecase-info p {
        font-size: 15px;
        word-break: keep-all;
    }

    .usecase-visual {
        max-width: 100%;
        aspect-ratio: 4/3;
    }

    .recommended-modules {
        gap: 6px;
    }

    .module-badge {
        font-size: 12px;
        padding: 5px 10px;
        white-space: normal;
    }

    .checklist li {
        font-size: 14px;
        padding-left: 28px;
        margin-bottom: 12px;
        word-break: keep-all;
    }

    /* Use Case 목업 모바일 */
    .mockup-area {
        padding: 20px 16px;
        min-height: 220px;
    }

    .eco-center {
        height: 200px;
    }

    .eco-line {
        display: none;
    }

    .center-node .icon {
        font-size: 24px;
    }

    .side-node .icon {
        font-size: 18px;
    }

    .eco-node {
        padding: 8px;
    }

    .node-label {
        font-size: 10px;
    }

    /* Pipeline 모바일 */
    .usecase-pipeline {
        transform: scale(0.8);
    }

    /* STO 모바일 */
    .sto-building {
        font-size: 36px;
    }

    .sto-fragmentation {
        gap: 16px;
    }

    /* Portfolio 모바일 */
    .portfolio-total {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    /* ── 문의 폼 ── */
    .form-wrapper {
        padding: 24px 16px;
    }

    .form-grid,
    .checkbox-group {
        grid-template-columns: 1fr;
    }

    .form-group input[type="text"],
    .form-group input[type="email"],
    .form-group select {
        padding: 14px;
        font-size: 15px;
    }

    .privacy-check .custom-checkbox {
        font-size: 13px;
        line-height: 1.5;
    }

    .form-header p {
        font-size: 14px;
        word-break: keep-all;
    }

    /* ── 푸터 ── */
    .footer-content {
        flex-direction: column;
        align-items: center;
        gap: 32px;
        text-align: center;
    }

    .footer-info {
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

}

/* =========================================
   Small Phone Optimization (480px and below)
   ========================================= */
@media screen and (max-width: 480px) {
    :root {
        --section-spacing: 60px;
    }

    .container {
        padding: 0 16px;
    }

    /* ── 히어로 줄바꿈 제거 ── */
    .hero-br {
        display: none;
    }

    /* ── 히어로 타이포그래피 ── */
    .hero-title {
        font-size: 26px;
        letter-spacing: -0.5px;
        word-break: keep-all;
    }

    .hero-subtitle {
        font-size: 14px;
        padding: 0 4px;
    }

    .hero-cta {
        padding: 0 8px;
    }

    .hero-cta .btn {
        font-size: 15px;
        padding: 14px 20px;
    }

    /* ── 섹션 타이포그래피 ── */
    .section-title {
        font-size: 24px;
    }

    .section-desc {
        font-size: 14px;
        padding: 0 4px;
        max-width: 100%;
    }

    /* ── 카드 ── */
    .glass-card {
        padding: 20px 16px;
    }

    /* ── 모듈 카드 ── */
    .module-header h3 {
        font-size: 18px;
    }

    .module-header {
        gap: 10px;
    }

    .module-card p {
        font-size: 13px;
    }

    .module-tags span {
        font-size: 11px;
        padding: 4px 8px;
    }

    /* ── Admin 섹션 ── */
    .admin-content .gradient-text {
        font-size: 16px;
    }

    .accordion-header {
        font-size: 14px;
        padding: 16px 0;
    }

    .accordion-header span {
        font-size: 13px;
    }

    /* ── Use Case 탭 ── */
    .tab-list {
        gap: 6px;
    }

    .tab-btn {
        padding: 8px 12px;
        font-size: 12px;
    }

    .usecase-info h3 {
        font-size: 20px;
    }

    .usecase-info p {
        font-size: 14px;
    }

    .checklist li {
        font-size: 13px;
        padding-left: 24px;
    }

    /* ── 폼 ── */
    .form-wrapper {
        padding: 20px 12px;
    }

    .form-group input[type="text"],
    .form-group input[type="email"],
    .form-group select {
        padding: 12px;
        font-size: 14px;
    }

    .privacy-check .custom-checkbox {
        font-size: 12px;
    }

    /* ── 푸터 ── */
    .footer-logo {
        font-size: 22px;
    }

    .footer-info p {
        font-size: 13px;
    }
}

/* =========================================
   Extreme Small Screen (360px and below)
   ========================================= */
@media screen and (max-width: 360px) {
    .container {
        padding: 0 12px;
    }

    .hero-title {
        font-size: 22px;
        letter-spacing: -0.5px;
    }

    .hero-subtitle {
        font-size: 13px;
    }

    .section-title {
        font-size: 22px;
    }

    .section-desc {
        font-size: 13px;
    }

    .logo a {
        font-size: 20px;
    }

    /* 탭 버튼: 2x2 그리드 */
    .tab-list {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 6px;
        overflow-x: visible;
    }

    .tab-btn {
        padding: 8px 6px;
        font-size: 11px;
        text-align: center;
        white-space: normal;
    }

    .module-header h3 {
        font-size: 16px;
    }

    .accordion-header {
        font-size: 13px;
    }

    .accordion-header span {
        font-size: 12px;
    }

    .glass-card {
        padding: 16px 12px;
    }

    .badge {
        font-size: 12px;
        padding: 6px 12px;
    }

    .btn-large {
        padding: 12px 16px;
        font-size: 15px;
    }
}

/* =========================================
   Japanese Language Overrides (Mobile)
   ========================================= */
@media screen and (max-width: 768px) {
    html[lang="ja"] .hero-title {
        font-size: 28px;
        line-height: 1.3;
    }

    html[lang="ja"] .section-desc {
        word-break: normal;
        overflow-wrap: break-word;
    }

    html[lang="ja"] .accordion-header span {
        font-size: 13px;
    }

    html[lang="ja"] .tab-btn {
        font-size: 12px;
        padding: 8px 12px;
    }
}

@media screen and (max-width: 480px) {
    html[lang="ja"] .hero-br {
        display: inline;
    }

    html[lang="ja"] .hero-title {
        font-size: 22px;
    }

    html[lang="ja"] .hero-subtitle {
        font-size: 13px;
    }

    html[lang="ja"] .module-card p {
        font-size: 12px;
    }
}