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

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

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: #1a1a1a;
    line-height: 1.7;
    overflow-x: hidden;
    background: #fff;
}

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

ul {
    list-style: none;
}

/* ===== Variables ===== */
:root {
    --primary: #00B050;
    --primary-dark: #009040;
    --primary-light: #e8f8ef;
    --primary-bg: #f0faf4;
    --dark: #1a1a1a;
    --gray: #666;
    --light-gray: #f5f5f5;
    --white: #fff;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
    --radius: 16px;
    --max-width: 1200px;
}

/* ===== Typography ===== */
h1,
h2,
h3,
h4 {
    font-weight: 700;
    line-height: 1.3;
}

.section-title {
    font-size: 2.2rem;
    text-align: center;
    margin-bottom: 1rem;
}

.section-title .highlight {
    color: var(--primary);
}

.section-subtitle {
    text-align: center;
    color: var(--gray);
    font-size: 1.1rem;
    margin-bottom: 3.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Layout ===== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: 100px 0;
}

.bg-light {
    background: var(--light-gray);
}

.bg-primary-light {
    background: var(--primary-bg);
}

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.3s;
}

.nav.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.3rem;
}

.nav-logo .logo-icon {
    width: 36px;
    height: 36px;
    background: var(--primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.3rem;
    font-weight: 900;
}

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

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray);
    transition: color 0.2s;
}

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

.nav-cta {
    background: var(--primary) !important;
    color: white !important;
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 600 !important;
    transition: background 0.2s !important;
}

.nav-cta:hover {
    background: var(--primary-dark) !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
    background: none;
    border: none;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: 0.3s;
}

/* ===== Hero Section (Video Background) ===== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.45), rgba(0, 0, 0, 0.35), rgba(0, 0, 0, 0.5));
    z-index: 1;
}

.hero-video {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-video video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-fallback {
    position: absolute;
    inset: 0;
    background: url('../img/hero-bg.jpg') center/cover no-repeat;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 24px;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 176, 80, 0.2);
    border: 1px solid rgba(0, 176, 80, 0.4);
    color: #6ee7a0;
    padding: 8px 20px;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 28px;
    backdrop-filter: blur(8px);
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.3;
    margin-bottom: 12px;
    color: white;
}

.hero h1 .green {
    color: #4ade80;
}

.hero-divider {
    width: 80px;
    height: 3px;
    background: var(--primary);
    margin: 28px auto;
    border-radius: 2px;
}

.hero-desc {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.85);
    margin: 0 auto 40px;
    max-width: 700px;
    padding: 16px 40px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    backdrop-filter: blur(4px);
    white-space: nowrap;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 176, 80, 0.3);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(4px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: white;
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
    text-align: center;
    animation: bounce 2s infinite;
}

.hero-scroll .arrow {
    display: block;
    margin-top: 4px;
    font-size: 1.2rem;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(8px);
    }
}

/* ===== Law Section ===== */
.law-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.law-card {
    background: white;
    border-radius: var(--radius);
    padding: 40px 32px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid #f0f0f0;
    position: relative;
    overflow: hidden;
}

.law-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.law-card:first-child::before {
    background: var(--primary);
}

.law-card:last-child::before {
    background: #ff6b6b;
}

.law-card .card-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
}

.law-card:first-child .card-icon {
    background: var(--primary-light);
}

.law-card:last-child .card-icon {
    background: #ffe8e8;
}

.law-card h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
}

.law-card .penalty {
    font-size: 1.1rem;
    font-weight: 700;
    color: #d32f2f;
    background: #fff5f5;
    margin-top: 12px;
    padding: 12px;
    border-radius: 8px;
}

.law-card .condition {
    font-size: 0.85rem;
    color: var(--gray);
    margin-top: 8px;
}

.law-notice {
    text-align: center;
    margin-top: 40px;
    padding: 24px;
    background: var(--primary-light);
    border-radius: 12px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.law-notice p {
    font-weight: 600;
    color: var(--primary-dark);
    font-size: 1.05rem;
}

/* ===== 7 Obligations ===== */
.obligations-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.obligation-card {
    background: white;
    border-radius: var(--radius);
    padding: 32px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #f0f0f0;
}

.obligation-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.obligation-card .card-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-bg);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.6rem;
}

.obligation-card h4 {
    font-size: 0.95rem;
    line-height: 1.4;
}

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

/* ===== Process Section ===== */
.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 48px;
    left: 15%;
    right: 15%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    border-radius: 2px;
    z-index: 0;
}

.step-card {
    background: white;
    border-radius: var(--radius);
    padding: 32px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    position: relative;
    z-index: 1;
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.2rem;
    margin: 0 auto 20px;
}

.step-card .step-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.step-card h4 {
    font-size: 1.05rem;
    margin-bottom: 8px;
    color: var(--primary-dark);
}

.step-card p {
    font-size: 0.9rem;
    color: var(--gray);
}

/* ===== Features Section ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.feature-card {
    background: white;
    border-radius: var(--radius);
    padding: 40px 32px;
    box-shadow: var(--shadow);
    border: 1px solid #f0f0f0;
    display: flex;
    gap: 20px;
    align-items: flex-start;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 56px;
    height: 56px;
    min-width: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.feature-icon.blue {
    background: #e8f4fd;
}

.feature-icon.green {
    background: var(--primary-light);
}

.feature-icon.orange {
    background: #fff3e0;
}

.feature-icon.purple {
    background: #f3e8fd;
}

.feature-card h3 {
    font-size: 1.15rem;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--gray);
}

/* ===== Benefits Section ===== */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.benefit-card {
    text-align: center;
    padding: 40px 24px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

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

.benefit-icon {
    width: 72px;
    height: 72px;
    background: var(--primary-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
}

.benefit-card h4 {
    font-size: 1rem;
    line-height: 1.5;
    color: var(--dark);
}

/* ===== Function Detail Section ===== */
.func-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.func-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid #f0f0f0;
    transition: transform 0.3s, box-shadow 0.3s;
}

.func-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.func-card-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.func-card-header .func-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.func-card-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
}

.func-card-body {
    padding: 20px 24px;
}

.func-list-item {
    padding: 10px 0;
    font-size: 0.92rem;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid #f5f5f5;
}

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

.func-dot {
    width: 6px;
    height: 6px;
    min-width: 6px;
    background: var(--primary);
    border-radius: 50%;
}

.func-list-item.accent {
    font-weight: 600;
    color: var(--primary-dark);
}

.func-list-item.accent .func-dot {
    width: 8px;
    height: 8px;
    min-width: 8px;
}

.func-card.span-full {
    grid-column: 1 / -1;
}

.func-card.span-full .func-card-body {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.func-sub-group h4 {
    font-size: 0.85rem;
    color: var(--primary-dark);
    font-weight: 700;
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--primary-light);
}

/* ===== Screen Preview Section ===== */
.preview-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
}

.preview-tab {
    padding: 12px 32px;
    border-radius: 100px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid #e0e0e0;
    background: white;
    color: var(--gray);
    transition: all 0.2s;
}

.preview-tab.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.preview-tab:hover:not(.active) {
    border-color: var(--primary);
    color: var(--primary);
}

.preview-content {
    position: relative;
}

.preview-panel {
    display: none;
}

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

.preview-web {
    max-width: 1000px;
    margin: 0 auto;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    background: white;
}

.preview-browser-bar {
    background: #f0f0f0;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.browser-dot.red {
    background: #ff5f57;
}

.browser-dot.yellow {
    background: #febc2e;
}

.browser-dot.green {
    background: #28c840;
}

.browser-url {
    margin-left: 16px;
    background: white;
    border-radius: 6px;
    padding: 6px 16px;
    font-size: 0.8rem;
    color: var(--gray);
    flex: 1;
    max-width: 300px;
}

.preview-web img {
    width: 100%;
    display: block;
}

.preview-app-wrap {
    max-width: 300px;
    margin: 0 auto;
    border-radius: 32px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 8px solid #1a1a1a;
    background: white;
}

.preview-app-wrap img {
    width: 100%;
    display: block;
}

/* ===== Stats Counter Section ===== */
.stats-section {
    background: linear-gradient(135deg, #1a3a2a 0%, #0d2618 100%);
    padding: 80px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}

.stat-item {
    text-align: center;
    color: white;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: #4ade80;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
}

/* ===== FAQ Section ===== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid #e8e8e8;
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: box-shadow 0.2s;
}

.faq-item:hover {
    box-shadow: var(--shadow);
}

.faq-question {
    padding: 20px 24px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    border: none;
    width: 100%;
    text-align: left;
    color: var(--dark);
}

.faq-question .arrow {
    font-size: 1.2rem;
    color: var(--gray);
    transition: transform 0.3s;
    min-width: 20px;
    text-align: center;
}

.faq-item.open .faq-question .arrow {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer-inner {
    padding: 0 24px 20px;
    color: var(--gray);
    font-size: 0.95rem;
    line-height: 1.8;
}

.faq-item.open .faq-answer {
    max-height: 300px;
}

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

.testimonial-card {
    background: white;
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: var(--shadow);
    border: 1px solid #f0f0f0;
    position: relative;
}

.testimonial-card::before {
    content: '\201C';
    position: absolute;
    top: 16px;
    left: 24px;
    font-size: 3rem;
    color: var(--primary-light);
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 20px;
    padding-top: 20px;
}

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

.testimonial-avatar {
    width: 44px;
    height: 44px;
    background: var(--primary-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--primary);
    font-size: 0.9rem;
}

.testimonial-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.testimonial-role {
    font-size: 0.8rem;
    color: var(--gray);
}

/* ===== AI Section ===== */
.ai-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.ai-card {
    background: white;
    border-radius: var(--radius);
    padding: 36px 28px;
    box-shadow: var(--shadow);
    border: 1px solid #f0f0f0;
    border-left: 4px solid var(--primary);
    transition: transform 0.3s;
}

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

.ai-card h3 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    color: var(--primary-dark);
}

.ai-card li {
    padding: 6px 0;
    font-size: 0.92rem;
    color: var(--gray);
    position: relative;
    padding-left: 20px;
}

.ai-card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

/* ===== CTA Section ===== */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
    padding: 80px 0;
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: 16px;
}

.cta-section p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 32px;
}

.btn-white {
    background: white;
    color: var(--primary-dark);
    padding: 16px 40px;
    font-size: 1.05rem;
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

/* ===== Contact Section ===== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 1045px;
    margin: 0 auto;
}

.contact-card {
    text-align: center;
    padding: 32px 24px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.contact-card .card-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.5rem;
}

.contact-card h4 {
    font-size: 0.95rem;
    color: var(--gray);
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ===== Footer ===== */
.footer {
    background: #1a1a1a;
    color: #999;
    padding: 48px 0;
    text-align: center;
    font-size: 0.85rem;
}

.footer .company {
    color: white;
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 12px;
    letter-spacing: 2px;
}

/* ===== Scroll Animations ===== */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.6rem;
    }

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

    .obligations-bottom {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .process-steps::before {
        display: none;
    }

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

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

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

    .preview-widget.wide {
        grid-column: span 1;
    }

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

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

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero-desc {
        font-size: 1rem;
        padding: 12px 20px;
    }

    .section-title {
        font-size: 1.7rem;
    }

    .nav-links {
        display: none;
    }

    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        padding: 24px;
        gap: 16px;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    }

    .nav-toggle {
        display: flex;
    }

    .law-cards,
    .features-grid,
    .ai-grid,
    .contact-grid,
    .obligations-grid,
    .func-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .obligations-bottom {
        grid-template-columns: 1fr;
    }

    .func-card.span-full .func-card-body {
        grid-template-columns: repeat(2, 1fr);
    }

    .preview-screen {
        grid-template-columns: 1fr;
        padding: 20px;
    }

    section {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.6rem;
    }

    .hero {
        min-height: 500px;
    }

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

    .func-card.span-full .func-card-body {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: 2.2rem;
    }
}