/* ==========================================================================
   Archived-It v2 "Clarity" — Light Professional Theme
   Design: Clean, modern, approachable (Stripe meets Linear)
   ========================================================================== */

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

:root {
    /* Colors */
    --white: #ffffff;
    --bg-gray: #f8fafc;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --accent: #2563eb;
    --accent-dark: #1d4ed8;
    --accent-light: #dbeafe;
    --success: #059669;
    --success-light: #d1fae5;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.06), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.06), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

    /* Spacing */
    --section-padding: 96px 0;
    --container-max: 1200px;
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', monospace;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--white);
    overflow-x: hidden;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--accent-dark);
}

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

ul {
    list-style: none;
}

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

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 15px;
    line-height: 1;
    border: 2px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
    border-radius: var(--radius);
}

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

.btn-primary:hover {
    background-color: var(--accent-dark);
    border-color: var(--accent-dark);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

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

.btn-outline:hover {
    background-color: var(--accent);
    color: var(--white);
}

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

.btn-white:hover {
    background-color: var(--bg-gray);
    border-color: var(--bg-gray);
    color: var(--accent-dark);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-outline-white {
    background-color: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline-white:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
    color: var(--white);
}

/* ---------- Navigation ---------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: box-shadow 0.3s ease;
}

.nav.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

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

.logo img {
    width: 40px;
    height: 40px;
}

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

.nav-link {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: color 0.2s ease, background-color 0.2s ease;
}

.nav-link:hover {
    color: var(--text-primary);
    background-color: var(--bg-gray);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
    border-radius: var(--radius-sm);
}

.nav-toggle:hover {
    background-color: var(--bg-gray);
}

.nav-toggle-bar {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 1px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle.open .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open .nav-toggle-bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle.open .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Section Base ---------- */
.section {
    padding: var(--section-padding);
}

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

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 64px auto;
}

.section-eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
}

.section-title {
    font-size: 36px;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* ---------- Hero ---------- */
.hero {
    padding: 160px 0 96px 0;
    background: linear-gradient(180deg, var(--white) 0%, var(--bg-gray) 100%);
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    background-color: var(--accent-light);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    margin-bottom: 24px;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.15;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: 20px;
    line-height: 1.7;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 36px auto;
}

.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-trust {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

.trust-item {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
}

.trust-dot {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background-color: var(--text-muted);
    flex-shrink: 0;
}

/* ---------- How It Works (Steps) ---------- */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    position: relative;
}

.step-card {
    position: relative;
    text-align: center;
    padding: 32px 24px;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: var(--accent);
    color: var(--white);
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 20px;
    position: relative;
    z-index: 2;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.step-connector {
    position: absolute;
    top: 59px;
    left: calc(50% + 28px);
    width: calc(100% - 56px);
    height: 2px;
    background: linear-gradient(90deg, var(--accent) 0%, var(--border) 100%);
    z-index: 1;
}

.step-card:last-child .step-connector {
    display: none;
}

.step-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.step-desc {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* ---------- Regulation Cards (Problem) ---------- */
.regulation-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 48px;
}

.regulation-card {
    background-color: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.regulation-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.regulation-flag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background-color: var(--accent-light);
    color: var(--accent);
    font-size: 14px;
    font-weight: 800;
    margin-bottom: 16px;
}

.regulation-card h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.regulation-card p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* ---------- Stats Row ---------- */
.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.stat-box {
    background-color: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
}

.stat-value {
    font-size: 36px;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ---------- Benefits (Solution) ---------- */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.benefit-card {
    background-color: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.benefit-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.benefit-icon-wrap {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    background-color: var(--accent-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.benefit-icon {
    width: 24px;
    height: 24px;
    color: var(--accent);
}

.benefit-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.benefit-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.benefit-list li {
    font-size: 15px;
    line-height: 1.5;
    color: var(--text-secondary);
    padding-left: 24px;
    position: relative;
}

.benefit-list li::before {
    content: "\2713";
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
    font-size: 14px;
}

/* ---------- Features Grid ---------- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.feature-card {
    background-color: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 20px;
    text-align: center;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.feature-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.feature-icon-emoji {
    font-size: 28px;
    margin-bottom: 12px;
    line-height: 1;
}

.feature-card h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 13px;
    line-height: 1.5;
    color: var(--text-secondary);
}

/* ---------- Compliance ---------- */
.compliance-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.compliance-card {
    background-color: var(--bg-gray);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: box-shadow 0.2s ease;
}

.compliance-card:hover {
    box-shadow: var(--shadow-md);
}

.compliance-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.compliance-region {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background-color: var(--accent);
    color: var(--white);
    font-size: 12px;
    font-weight: 800;
    flex-shrink: 0;
}

.compliance-header h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.compliance-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 16px;
}

.compliance-list li {
    font-size: 15px;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.check {
    color: var(--success);
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
    margin-top: 2px;
}

.compliance-ref {
    font-size: 13px;
    color: var(--text-muted);
    font-style: italic;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

/* ---------- Security ---------- */
.security-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.security-card {
    background-color: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.security-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.security-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius);
    background-color: var(--accent-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.security-icon svg {
    width: 22px;
    height: 22px;
    color: var(--accent);
}

.security-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

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

.security-card li {
    font-size: 14px;
    color: var(--text-secondary);
    padding-left: 20px;
    position: relative;
}

.security-card li::before {
    content: "\2713";
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
    font-size: 13px;
}

/* ---------- FAQ ---------- */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    background-color: var(--white);
    transition: box-shadow 0.2s ease;
}

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

.faq-item.open {
    box-shadow: var(--shadow-md);
    border-color: var(--accent-light);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    font-family: var(--font-sans);
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.2s ease;
}

.faq-question:hover {
    color: var(--accent);
}

.faq-chevron {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--text-muted);
    transition: transform 0.3s ease, color 0.2s ease;
}

.faq-item.open .faq-chevron {
    transform: rotate(180deg);
    color: var(--accent);
}

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

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

.faq-answer p {
    padding: 0 24px 20px 24px;
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* ---------- CTA Section ---------- */
.section-cta {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    text-align: center;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 40px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.cta-subtitle {
    font-size: 18px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 32px;
}

.cta-features {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 36px;
}

.cta-feature {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

.cta-feature .check {
    color: rgba(255, 255, 255, 0.9);
}

.cta-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

/* ---------- Contact Section ---------- */
.contact-section {
    background-color: var(--bg-gray);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    align-items: start;
}

.contact-info .section-eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}

.contact-info .section-title {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.contact-intro {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 36px;
}

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

.contact-detail-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-detail-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
}

.contact-detail-item a,
.contact-detail-item span {
    font-size: 15px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.contact-detail-item a:hover {
    color: var(--accent);
}

.contact-form-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

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

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 11px 14px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 15px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    outline: none;
    -webkit-appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

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

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
    cursor: pointer;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.form-note {
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 12px;
}

/* ---------- Footer ---------- */
.footer {
    background-color: var(--white);
    border-top: 1px solid var(--border);
    padding: 64px 0 32px 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.footer-tagline {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

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

.footer-column h4 {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.footer-column a {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    transition: color 0.2s ease;
}

.footer-column a:hover {
    color: var(--accent);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border);
    text-align: center;
}

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

.footer-bottom .ix-credit {
    width: 100%;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.footer-bottom .ix-credit a {
    color: inherit;
    text-decoration: none;
    border-bottom: 1px solid currentColor;
    opacity: 0.85;
}

.footer-bottom .ix-credit a:hover {
    opacity: 1;
}

/* ---------- Scroll to Top ---------- */
.scroll-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--white);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, box-shadow 0.2s ease;
    z-index: 900;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-light);
}

.scroll-top svg {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
}

/* ---------- Fade-in Animation ---------- */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ---------- Responsive ---------- */

/* Tablet */
@media (max-width: 1024px) {
    :root {
        --section-padding: 72px 0;
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .section-title {
        font-size: 30px;
    }

    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .step-connector {
        display: none;
    }

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

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

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

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

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --section-padding: 56px 0;
    }

    .container {
        padding: 0 20px;
    }

    /* Navigation mobile */
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 4px;
        padding: 16px 20px;
        background-color: var(--white);
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-link {
        padding: 12px 16px;
        font-size: 16px;
    }

    .nav-links .btn {
        margin-top: 8px;
        align-self: stretch;
    }

    /* Hero mobile */
    .hero {
        padding: 120px 0 56px 0;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-trust {
        gap: 8px;
    }

    .trust-dot {
        display: none;
    }

    .trust-item {
        font-size: 13px;
    }

    .hero-trust {
        justify-content: center;
        gap: 4px 16px;
    }

    /* Section headers */
    .section-header {
        margin-bottom: 40px;
    }

    .section-title {
        font-size: 26px;
    }

    .section-subtitle {
        font-size: 16px;
    }

    /* Steps */
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .step-card {
        display: grid;
        grid-template-columns: auto 1fr;
        grid-template-rows: auto auto;
        column-gap: 16px;
        text-align: left;
        padding: 20px;
        background-color: var(--bg-gray);
        border-radius: var(--radius);
        border: 1px solid var(--border);
    }

    .step-number {
        grid-row: 1 / 3;
        width: 48px;
        height: 48px;
        font-size: 18px;
        margin-bottom: 0;
        align-self: center;
    }

    .step-connector {
        display: none;
    }

    .step-title {
        align-self: end;
        margin-bottom: 2px;
    }

    .step-desc {
        align-self: start;
    }

    /* Grids */
    .regulation-grid,
    .benefits-grid,
    .compliance-grid,
    .security-grid {
        grid-template-columns: 1fr;
    }

    .stats-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .stat-box {
        padding: 24px 20px;
    }

    .stat-value {
        font-size: 28px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .feature-card {
        padding: 20px 16px;
    }

    /* CTA */
    .cta-title {
        font-size: 28px;
    }

    .cta-subtitle {
        font-size: 16px;
    }

    .cta-features {
        flex-direction: column;
        gap: 10px;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    /* Footer */
    .footer-links {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    /* Scroll to top */
    .scroll-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }
}

/* Small mobile */
@media (max-width: 420px) {
    .hero-title {
        font-size: 28px;
    }

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

    .cta-title {
        font-size: 24px;
    }
}