:root {
    --color-primary: #2563eb;
    --color-secondary: #38bdf8;
    --color-tertiary: #1e3a8a;
    --color-dark: #0f172a;
    --color-muted: #475569;
    --color-light: #f8fafc;
    --color-white: #ffffff;
    --color-accent: #14b8a6;

    --space-2xs: 0.25rem;
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;

    --radius-sm: 0.75rem;
    --radius-md: 1.25rem;
    --radius-lg: 2rem;

    --shadow-soft: 0 15px 40px rgba(15, 23, 42, 0.12);
    --shadow-light: 0 10px 30px rgba(15, 23, 42, 0.08);
    --shadow-header: 0 4px 30px rgba(15, 23, 42, 0.1);

    --font-heading: 'Inter', 'Segoe UI', system-ui, sans-serif;
    --font-body: 'Inter', 'Segoe UI', system-ui, sans-serif;

    --container-max: 1200px;

    --transition-base: all 0.3s ease;

    --step--1: clamp(0.88rem, 0.84rem + 0.17vw, 1rem);
    --step-0: clamp(1rem, 0.95rem + 0.25vw, 1.15rem);
    --step-1: clamp(1.2rem, 1.1rem + 0.5vw, 1.5rem);
    --step-2: clamp(1.5rem, 1.4rem + 0.7vw, 1.9rem);
    --step-3: clamp(1.9rem, 1.7rem + 0.9vw, 2.4rem);
    --step-4: clamp(2.3rem, 2.1rem + 1.1vw, 3rem);

    --break-mobile: 320px;
    --break-tablet: 768px;
    --break-desktop: 1024px;
    --break-wide: 1440px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: var(--step-0);
    line-height: 1.6;
    color: var(--color-dark);
    background: linear-gradient(180deg, rgba(248, 250, 252, 0.9), rgba(226, 232, 240, 0.6));
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-base);
}

.site-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-sm);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 999;
    backdrop-filter: blur(14px);
    background: rgba(15, 23, 42, 0.55);
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
    box-shadow: var(--shadow-header);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
}

.branding {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.branding-logo {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-weight: 700;
    letter-spacing: 0.08em;
}

.branding-name {
    font-size: var(--step-1);
    font-weight: 700;
    color: var(--color-white);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    list-style: none;
}

.nav-menu a {
    color: rgba(248, 250, 252, 0.88);
    font-weight: 500;
    padding: var(--space-2xs) 0;
    position: relative;
}

.nav-menu a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 100%;
    height: 2px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: right;
    transition: var(--transition-base);
}

.nav-menu a:hover::after,
.nav-menu a:focus-visible::after,
.nav-menu a.is-active::after {
    transform-origin: left;
    transform: scaleX(1);
}

.nav-toggle {
    display: inline-flex;
    background: none;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

.nav-toggle:focus-visible,
.nav-toggle:hover {
    background: rgba(148, 163, 184, 0.18);
}

.nav-toggle svg {
    width: 28px;
    height: 28px;
}

.nav-toggle[aria-expanded="true"] svg:first-child {
    display: none;
}

.nav-toggle[aria-expanded="false"] svg:last-child {
    display: none;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2xs);
    padding: 0.9rem 1.8rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--step-0);
    cursor: pointer;
    transition: var(--transition-base);
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-tertiary));
    color: var(--color-white);
    box-shadow: var(--shadow-soft);
}

.btn-primary:hover,
.btn-primary:focus-visible {
    transform: translateY(-3px);
    box-shadow: 0 20px 45px rgba(37, 99, 235, 0.25);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.14);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.35);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
    background: rgba(255, 255, 255, 0.25);
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Hero */
.page-hero {
    padding: var(--space-2xl) 0 var(--space-xl);
    background: var(--color-white);
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: "";
    position: absolute;
    inset: 20% -40% -60% 40%;
    background: radial-gradient(circle at center, rgba(37, 99, 235, 0.18), transparent 70%);
    pointer-events: none;
}

.page-hero.homepage-hero {
    background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.28), transparent 55%), linear-gradient(145deg, #0f172a, #1d4ed8 55%, #38bdf8);
    min-height: 86vh;
    display: flex;
    align-items: center;
    color: var(--color-white);
}

.hero-content {
    display: grid;
    gap: var(--space-lg);
    position: relative;
    z-index: 1;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-weight: 600;
    letter-spacing: 0.05em;
    background: rgba(15, 23, 42, 0.35);
    border-radius: 999px;
    padding: var(--space-2xs) var(--space-sm);
    text-transform: uppercase;
    font-size: var(--step--1);
}

.hero-eyebrow span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-accent);
    box-shadow: 0 0 12px rgba(20, 184, 166, 0.6);
}

.hero-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: var(--step-4);
    line-height: 1.1;
    max-width: 16ch;
}

.hero-subtitle {
    font-size: var(--step-1);
    max-width: 46ch;
    color: rgba(226, 232, 240, 0.92);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.hero-metrics {
    display: grid;
    gap: var(--space-sm);
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.metric-card {
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid rgba(148, 163, 184, 0.2);
    box-shadow: var(--shadow-light);
}

.metric-card strong {
    display: block;
    font-size: var(--step-2);
    font-weight: 700;
    color: var(--color-white);
}

.metric-card span {
    display: block;
    font-size: var(--step--1);
    color: rgba(226, 232, 240, 0.75);
}

/* Grid Systems */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid.featured-grid {
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.grid.featured-grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.feature-card {
    padding: var(--space-lg);
    background: rgba(15, 23, 42, 0.75);
    color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(226, 232, 240, 0.08);
    backdrop-filter: blur(16px);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    position: relative;
    overflow: hidden;
}

.feature-card::after {
    content: "";
    position: absolute;
    inset: -50% 50% 40% -30%;
    background: radial-gradient(circle at center, rgba(56, 189, 248, 0.35), transparent 70%);
    opacity: 0;
    transition: var(--transition-base);
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: rgba(148, 163, 184, 0.12);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--color-white);
}

.feature-card h3 {
    font-size: var(--step-1);
    font-weight: 600;
}

.feature-card p {
    color: rgba(226, 232, 240, 0.85);
}

/* Sections */
.page-section {
    padding: var(--space-2xl) 0;
}

.section-title {
    font-size: var(--step-3);
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-md);
}

.section-intro {
    font-size: var(--step-1);
    color: var(--color-muted);
    max-width: 60ch;
    margin-bottom: var(--space-xl);
}

.card {
    background: var(--color-white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-light);
    border: 1px solid rgba(148, 163, 184, 0.15);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    position: relative;
}

.card:hover {
    transform: translateY(-6px);
}

.card-title {
    font-size: var(--step-1);
    font-weight: 600;
    color: var(--color-dark);
}

.list-dot {
    list-style: none;
}

.list-dot li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: var(--space-xs);
    color: var(--color-muted);
    font-size: var(--step-0);
}

.list-dot li::before {
    content: "";
    width: 9px;
    height: 9px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: 50%;
    position: absolute;
    left: 0;
    top: 0.55rem;
    transform: translateY(-50%);
}

/* Insight list */
.insight-list {
    display: grid;
    gap: var(--space-md);
}

.insight-item {
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(148, 163, 184, 0.25);
    box-shadow: var(--shadow-light);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.insight-meta {
    font-size: var(--step--1);
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* Forms */
.form-card {
    background: var(--color-white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(148, 163, 184, 0.15);
    box-shadow: var(--shadow-soft);
}

.form-grid {
    display: grid;
    gap: var(--space-md);
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-field label {
    font-weight: 600;
    color: var(--color-dark);
}

.form-field input,
.form-field select,
.form-field textarea {
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(148, 163, 184, 0.45);
    background: rgba(255, 255, 255, 0.9);
    font-size: var(--step-0);
    transition: var(--transition-base);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.18);
}

.form-field textarea {
    min-height: 160px;
    resize: vertical;
}

input[type="submit"],
button[type="submit"] {
    width: fit-content;
}

/* Contact cards */
.contact-methods {
    display: grid;
    gap: var(--space-md);
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.contact-card {
    background: rgba(15, 23, 42, 0.78);
    color: var(--color-white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(148, 163, 184, 0.18);
}

.contact-card a {
    color: var(--color-white);
    font-weight: 600;
}

.contact-card a:hover,
.contact-card a:focus-visible {
    text-decoration: underline;
}

/* Legal pages */
.legal-page {
    padding: var(--space-2xl) 0;
}

.legal-content {
    display: grid;
    gap: var(--space-lg);
}

.legal-section h2 {
    font-size: var(--step-2);
    margin-bottom: var(--space-sm);
}

.legal-section p,
.legal-section ul {
    color: var(--color-muted);
    font-size: var(--step-0);
}

.legal-section ul {
    padding-left: 1.5rem;
    list-style: disc;
}

.policy-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--space-md);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-light);
}

.policy-table th,
.policy-table td {
    padding: var(--space-sm);
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: rgba(255, 255, 255, 0.95);
    text-align: left;
}

.policy-table th {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(56, 189, 248, 0.12));
    font-weight: 600;
    color: var(--color-dark);
}

/* Footer */
.site-footer {
    background: var(--color-dark);
    color: rgba(226, 232, 240, 0.9);
    padding: var(--space-2xl) 0 var(--space-xl);
    position: relative;
    overflow: hidden;
}

.site-footer::before {
    content: "";
    position: absolute;
    inset: 10% 50% -40% -10%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.35), transparent 65%);
    pointer-events: none;
}

.site-footer .container {
    position: relative;
    z-index: 1;
    display: grid;
    gap: var(--space-xl);
}

.footer-top {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.footer-about p {
    color: rgba(226, 232, 240, 0.75);
    margin-top: var(--space-xs);
    max-width: 48ch;
}

.footer-nav h4 {
    font-size: var(--step-0);
    margin-bottom: var(--space-sm);
    color: var(--color-white);
}

.footer-nav ul {
    list-style: none;
    display: grid;
    gap: var(--space-xs);
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
    color: var(--color-secondary);
}

.footer-contacts {
    display: grid;
    gap: var(--space-xs);
}

.footer-contacts a {
    color: var(--color-white);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

.footer-contacts a:hover,
.footer-contacts a:focus-visible {
    color: var(--color-secondary);
}

.footer-bottom {
    border-top: 1px solid rgba(71, 85, 105, 0.45);
    padding-top: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    font-size: var(--step--1);
    color: rgba(148, 163, 184, 0.75);
}

.footer-bottom-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

/* Cookie banner */
.cookie-banner {
    position: fixed;
    bottom: var(--space-sm);
    right: var(--space-sm);
    max-width: min(420px, calc(100% - var(--space-lg)));
    background: rgba(15, 23, 42, 0.92);
    color: var(--color-white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    z-index: 1100;
    display: none;
    flex-direction: column;
    gap: var(--space-sm);
}

.cookie-banner.is-visible {
    display: flex;
}

.cookie-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.cookie-actions button {
    flex: 1 1 140px;
}

.cookie-link {
    color: var(--color-secondary);
    text-decoration: underline;
}

/* Responsive navigation */
@media (max-width: 1023px) {
    .nav-menu {
        position: fixed;
        inset: 72px var(--space-sm) auto var(--space-sm);
        background: rgba(15, 23, 42, 0.95);
        backdrop-filter: blur(18px);
        border-radius: var(--radius-lg);
        padding: var(--space-lg);
        flex-direction: column;
        gap: var(--space-sm);
        transform: translateY(-20px);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition-base);
    }

    .nav-menu.is-open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-toggle {
        display: inline-flex;
    }
}

@media (min-width: 1024px) {
    .nav-toggle {
        display: none;
    }
}

/* Responsive adjustments */
@media (min-width: 768px) {
    .hero-content {
        grid-template-columns: repeat(12, 1fr);
        align-items: center;
    }

    .hero-text {
        grid-column: span 7;
    }

    .hero-metrics {
        grid-column: span 5;
    }

    .form-grid-responsive {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: var(--space-md);
    }
}

@media (min-width: 1024px) {
    .page-section {
        padding: var(--space-2xl) 0;
    }

    .section-title {
        font-size: var(--step-3);
    }

    .grid-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .grid-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.highlight-text {
    color: var(--color-secondary);
    font-weight: 600;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2xs);
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.12);
    color: var(--color-tertiary);
    font-size: var(--step--1);
    font-weight: 600;
}

.quote-card {
    background: linear-gradient(140deg, rgba(37, 99, 235, 0.08), rgba(148, 163, 184, 0.05));
    border-left: 4px solid var(--color-primary);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-light);
}

.quote-card p {
    font-style: italic;
    color: var(--color-dark);
}

.quote-card .quote-author {
    margin-top: var(--space-sm);
    font-weight: 600;
    color: var(--color-muted);
    font-size: var(--step--1);
}

.timeline {
    display: grid;
    gap: var(--space-lg);
    position: relative;
}

.timeline::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 12px;
    width: 2px;
    background: linear-gradient(180deg, rgba(37, 99, 235, 0.3), rgba(20, 184, 166, 0.5));
}

.timeline-item {
    display: grid;
    gap: var(--space-xs);
    padding-left: 2.5rem;
    position: relative;
}

.timeline-item::before {
    content: "";
    position: absolute;
    width: 14px;
    height: 14px;
    background: var(--color-white);
    border: 3px solid var(--color-primary);
    border-radius: 50%;
    left: 5px;
    top: 0.35rem;
}

.timeline-item h3 {
    font-size: var(--step-1);
    font-weight: 600;
    color: var(--color-dark);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.tag {
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.12);
    color: var(--color-tertiary);
    font-size: var(--step--1);
    font-weight: 600;
    letter-spacing: 0.04em;
}

.stats-row {
    display: grid;
    gap: var(--space-md);
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.stat-card {
    background: var(--color-white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-light);
    border: 1px solid rgba(148, 163, 184, 0.2);
}

.stat-card strong {
    display: block;
    font-size: var(--step-3);
    color: var(--color-primary);
}

.stat-card span {
    display: block;
    color: var(--color-muted);
    margin-top: var(--space-xs);
    font-size: var(--step--1);
}