:root {
    --color-navy: #0f172a;
    --color-royal: #1d4ed8;
    --color-sky: #38bdf8;
    --color-ice: #f1f5f9;
    --color-slate: #475569;
    --color-white: #ffffff;
    --color-muted: #94a3b8;
    --color-success: #10b981;
    --color-warning: #f97316;

    --gradient-hero: linear-gradient(135deg, rgba(29, 78, 216, 0.92), rgba(56, 189, 248, 0.85));
    --gradient-card: linear-gradient(145deg, rgba(15, 23, 42, 0.85), rgba(29, 78, 216, 0.65));
    --shadow-soft: 0 20px 45px rgba(15, 23, 42, 0.12);
    --shadow-sharp: 0 25px 60px rgba(15, 23, 42, 0.18);

    --radius-sm: 0.75rem;
    --radius-md: 1.25rem;
    --radius-lg: 1.75rem;

    --space-2xs: 0.35rem;
    --space-xs: 0.65rem;
    --space-sm: 1rem;
    --space-md: 1.75rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;

    --font-heading: 'Poppins', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;

    --container-max: 1200px;

    --transition-base: all 0.3s ease;
    --transition-long: all 0.5s ease;

    --z-header: 1000;
    --z-cookie: 900;
    --z-overlay: 800;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--color-navy);
    background: var(--color-ice);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

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

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

a:hover,
a:focus {
    color: var(--color-royal);
}

button {
    font-family: inherit;
    cursor: pointer;
}

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

main {
    flex: 1 0 auto;
    padding-top: 84px;
}

.page-hero {
    padding: var(--space-xl) 0;
    background: var(--color-white);
}

.page-hero.homepage-hero {
    background: var(--gradient-hero);
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    color: var(--color-white);
    overflow: hidden;
}

.page-hero.homepage-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 20%, rgba(104, 213, 255, 0.12), transparent 55%),
        radial-gradient(circle at 85% 35%, rgba(30, 64, 175, 0.18), transparent 60%);
    z-index: 0;
}

.section {
    padding: var(--space-xl) 0;
}

.section.alt {
    background: var(--color-white);
}

.section-header {
    max-width: 720px;
    margin: 0 auto var(--space-lg);
    text-align: center;
}

.section-header h2 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: clamp(2rem, 4vw, 2.75rem);
    color: var(--color-navy);
    margin-bottom: var(--space-xs);
}

.section-header p {
    color: var(--color-slate);
    font-size: clamp(1rem, 2vw, 1.1rem);
}

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

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

.grid.two-column {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

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

.card {
    background: rgba(255, 255, 255, 0.88);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-soft);
    transition: var(--transition-long);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(14px);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-sharp);
}

.card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    border: 1px solid rgba(148, 163, 184, 0.22);
    pointer-events: none;
}

.stat-card {
    text-align: center;
    padding: var(--space-md);
    background: rgba(30, 64, 175, 0.08);
    border-radius: var(--radius-md);
    border: 1px solid rgba(148, 163, 184, 0.15);
}

.stat-card h3 {
    font-size: clamp(2rem, 5vw, 2.8rem);
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--color-navy);
}

.stat-card span {
    color: var(--color-slate);
    font-size: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.75rem;
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: 0.02em;
    border: none;
    transition: var(--transition-base);
    font-size: 1rem;
    gap: var(--space-2xs);
    text-align: center;
}

.btn.primary {
    background: var(--color-royal);
    color: var(--color-white);
    box-shadow: 0 10px 30px rgba(29, 78, 216, 0.35);
}

.btn.primary:hover {
    background: #1740b6;
}

.btn.secondary {
    background: rgba(15, 23, 42, 0.08);
    color: var(--color-navy);
}

.btn.secondary:hover {
    background: rgba(15, 23, 42, 0.16);
}

.btn.outline {
    background: transparent;
    border: 1px solid rgba(148, 163, 184, 0.4);
    color: var(--color-navy);
}

.btn.full {
    width: 100%;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2xs);
    padding: 0.5rem 1rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
    font-size: 0.9rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

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

.hero-content h1 {
    font-family: var(--font-heading);
    font-size: clamp(2.75rem, 6vw, 3.75rem);
    line-height: 1.08;
    max-width: 660px;
    text-shadow: 0 12px 40px rgba(15, 23, 42, 0.3);
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.85);
    max-width: 540px;
    font-size: clamp(1.05rem, 2.6vw, 1.2rem);
}

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

.hero-media {
    position: relative;
    z-index: 1;
}

.hero-media .media-frame {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sharp);
    max-width: 520px;
    margin-left: auto;
}

.hero-media .media-frame::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    border: 2px solid rgba(255, 255, 255, 0.25);
    pointer-events: none;
}

.hero-highlight {
    position: absolute;
    top: -10%;
    right: -8%;
    background: rgba(15, 23, 42, 0.75);
    color: var(--color-white);
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-soft);
    width: 220px;
    display: grid;
    gap: var(--space-2xs);
}

.hero-highlight strong {
    font-size: 1.1rem;
}

.hero-highlight span {
    font-size: 0.9rem;
    color: rgba(248, 250, 252, 0.75);
}

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

.icon-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(29, 78, 216, 0.12);
    display: grid;
    place-items: center;
    color: var(--color-royal);
    font-size: 1.3rem;
    margin-bottom: var(--space-sm);
}

.testimonials {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.9);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    position: relative;
}

.testimonial-card::before {
    content: "“";
    position: absolute;
    font-size: 6rem;
    opacity: 0.08;
    top: -20px;
    left: 20px;
    font-family: var(--font-heading);
}

.testimonial-card strong {
    display: block;
    margin-top: var(--space-md);
    font-weight: 600;
    color: var(--color-navy);
}

.testimonial-card span {
    color: var(--color-muted);
    font-size: 0.95rem;
}

.cta-panel {
    background: var(--gradient-card);
    color: var(--color-white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    display: grid;
    gap: var(--space-md);
    text-align: center;
    box-shadow: var(--shadow-sharp);
}

.cta-panel h2 {
    font-size: clamp(2rem, 4vw, 2.6rem);
    font-family: var(--font-heading);
}

.list {
    list-style: none;
    display: grid;
    gap: var(--space-sm);
}

.list.checkmarked li {
    position: relative;
    padding-left: 1.75rem;
    color: var(--color-slate);
}

.list.checkmarked li::before {
    content: "✔";
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 600;
}

.site-header {
    position: sticky;
    top: 0;
    width: 100%;
    background: rgba(241, 245, 249, 0.75);
    backdrop-filter: blur(14px);
    z-index: var(--z-header);
    border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--color-royal);
}

.site-nav {
    position: fixed;
    top: 84px;
    right: var(--space-sm);
    background: rgba(255, 255, 255, 0.96);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    padding: var(--space-md);
    transform: translateY(-16px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    min-width: 220px;
}

.site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

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

.nav-list a {
    font-weight: 500;
    color: var(--color-navy);
}

.nav-list a:hover {
    color: var(--color-royal);
}

.nav-toggle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: none;
    background: rgba(29, 78, 216, 0.1);
    display: grid;
    place-items: center;
    color: var(--color-royal);
    font-size: 1.35rem;
    transition: var(--transition-base);
}

.nav-toggle:hover {
    background: rgba(29, 78, 216, 0.18);
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-royal);
    position: relative;
    transition: var(--transition-base);
}

.nav-toggle span::before,
.nav-toggle span::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 2px;
    background: inherit;
    transition: var(--transition-base);
}

.nav-toggle span::before {
    top: -6px;
}

.nav-toggle span::after {
    bottom: -6px;
}

.nav-toggle[aria-expanded="true"] span {
    background: transparent;
}

.nav-toggle[aria-expanded="true"] span::before {
    transform: rotate(45deg);
    top: 0;
}

.nav-toggle[aria-expanded="true"] span::after {
    transform: rotate(-45deg);
    bottom: 0;
}

.site-footer {
    background: var(--color-navy);
    color: rgba(241, 245, 249, 0.9);
    padding: var(--space-xl) 0 var(--space-lg);
    flex-shrink: 0;
}

.footer-container {
    display: grid;
    gap: var(--space-lg);
}

.footer-top {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    display: inline-block;
    color: var(--color-white);
}

.footer-links,
.footer-contact,
.footer-legal {
    display: grid;
    gap: var(--space-2xs);
}

.footer-links a,
.footer-legal a,
.footer-contact a {
    color: rgba(241, 245, 249, 0.75);
}

.footer-links a:hover,
.footer-legal a:hover,
.footer-contact a:hover {
    color: var(--color-sky);
}

.footer-bottom {
    border-top: 1px solid rgba(148, 163, 184, 0.25);
    padding-top: var(--space-md);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    justify-content: space-between;
    font-size: 0.9rem;
    color: rgba(241, 245, 249, 0.65);
}

.responsive-img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

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

.timeline-step {
    background: rgba(255, 255, 255, 0.92);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    border-left: 4px solid rgba(29, 78, 216, 0.6);
    box-shadow: var(--shadow-soft);
}

.timeline-step strong {
    display: block;
    font-family: var(--font-heading);
    margin-bottom: var(--space-2xs);
    color: var(--color-navy);
}

.form-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-soft);
}

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

.form-group {
    display: grid;
    gap: var(--space-2xs);
}

.form-group label {
    font-weight: 600;
    color: var(--color-navy);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(148, 163, 184, 0.4);
    background: rgba(255, 255, 255, 0.92);
    font-size: 1rem;
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-royal);
    box-shadow: 0 0 0 4px rgba(29, 78, 216, 0.12);
    outline: none;
}

.form-note {
    font-size: 0.85rem;
    color: var(--color-muted);
}

.hero-layout {
    display: grid;
    gap: var(--space-xl);
    align-items: center;
}

.hero-layout.two-column {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.highlight-card {
    background: rgba(15, 23, 42, 0.82);
    color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-soft);
}

.list.inline {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    justify-content: center;
}

.inline-chip {
    padding: 0.65rem 1.2rem;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.16);
    color: var(--color-white);
    font-weight: 500;
}

.overview-grid {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.overview-card {
    background: rgba(255, 255, 255, 0.94);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-soft);
    display: grid;
    gap: var(--space-sm);
}

.overview-card h3 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
}

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

.resource-item {
    background: rgba(255, 255, 255, 0.92);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    display: grid;
    gap: var(--space-xs);
}

.resource-item h3 {
    font-family: var(--font-heading);
    color: var(--color-navy);
}

.resource-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    font-size: 0.9rem;
    color: var(--color-muted);
}

.expert-grid {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.expert-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-soft);
    display: grid;
    gap: var(--space-sm);
    text-align: center;
}

.expert-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto var(--space-sm);
    border: 3px solid rgba(56, 189, 248, 0.4);
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.12);
}

.expert-card strong {
    font-family: var(--font-heading);
    font-size: 1.15rem;
}

.expert-card span {
    color: var(--color-muted);
    font-size: 0.95rem;
}

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

.faq-item {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    box-shadow: var(--shadow-soft);
}

.faq-item h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    margin-bottom: var(--space-xs);
    color: var(--color-navy);
}

.policy-section {
    background: rgba(255, 255, 255, 0.9);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    margin-bottom: var(--space-md);
}

.policy-section h2 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    margin-bottom: var(--space-sm);
    color: var(--color-navy);
}

.policy-section p,
.policy-section ul {
    color: var(--color-slate);
}

.policy-section ul {
    padding-left: 1.2rem;
    margin-top: var(--space-xs);
    display: grid;
    gap: var(--space-2xs);
    list-style: disc;
}

.cookie-banner {
    position: fixed;
    bottom: var(--space-sm);
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    width: min(480px, calc(100% - 1.5rem));
    background: rgba(15, 23, 42, 0.92);
    color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sharp);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-long);
    z-index: var(--z-cookie);
}

.cookie-banner.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.cookie-content {
    display: grid;
    gap: var(--space-sm);
}

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

.cookie-btn {
    padding: 0.75rem 1.5rem;
    border-radius: 999px;
    font-weight: 600;
    border: 1px solid rgba(148, 163, 184, 0.3);
    background: rgba(255, 255, 255, 0.12);
    color: var(--color-white);
}

.cookie-btn:hover {
    background: rgba(56, 189, 248, 0.25);
}

.cookie-btn.primary {
    background: var(--color-royal);
    border-color: var(--color-royal);
}

.cookie-btn.primary:hover {
    background: #1740b6;
}

.table-wrapper {
    overflow-x: auto;
}

.policy-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--space-md);
    min-width: 600px;
}

.policy-table thead {
    background: rgba(29, 78, 216, 0.12);
}

.policy-table th,
.policy-table td {
    padding: 0.85rem;
    text-align: left;
    border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

.policy-table th {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--color-navy);
}

.course-card {
    display: grid;
    gap: var(--space-sm);
}

.course-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    font-size: 0.95rem;
    color: var(--color-muted);
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    background: rgba(29, 78, 216, 0.12);
    color: var(--color-royal);
    font-weight: 600;
    font-size: 0.85rem;
}

.testimonial-card .profile {
    display: grid;
    gap: 0.15rem;
}

@media (min-width: 768px) {
    .site-nav {
        position: static;
        background: transparent;
        box-shadow: none;
        padding: 0;
        transform: none;
        opacity: 1;
        visibility: visible;
        min-width: auto;
    }

    .nav-toggle {
        display: none;
    }

    .nav-list {
        display: flex;
        align-items: center;
        gap: var(--space-md);
    }

    .nav-list a {
        font-size: 0.98rem;
    }

    main {
        padding-top: 96px;
    }

    .hero-content {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        align-items: center;
    }

    .hero-buttons {
        gap: var(--space-sm);
    }

    .footer-container {
        gap: var(--space-xl);
    }

    .cookie-banner {
        bottom: var(--space-lg);
    }
}

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

    .page-hero.homepage-hero {
        padding: calc(var(--space-2xl) + 2rem) 0;
    }

    .hero-content h1 {
        font-size: clamp(3.25rem, 4vw, 4rem);
    }

    .cta-panel {
        padding: calc(var(--space-xl) + 1rem);
    }
}

@media (max-width: 767px) {
    .hero-highlight {
        position: relative;
        top: auto;
        right: auto;
        margin-top: -60px;
        width: 100%;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }

    .timeline-step {
        padding: var(--space-sm) var(--space-md);
    }

    .cookie-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
    }
}