:root {
    color-scheme: dark;
    --bg-gradient: radial-gradient(circle at top left, rgba(67, 97, 238, 0.35), transparent 55%), radial-gradient(circle at bottom right, rgba(114, 9, 183, 0.35), transparent 60%), #05010a;
    --surface-glass: rgba(12, 18, 34, 0.75);
    --surface-glass-strong: rgba(15, 22, 40, 0.9);
    --border-glass: rgba(255, 255, 255, 0.08);
    --color-text: #f5f7ff;
    --color-muted: rgba(232, 233, 244, 0.7);
    --color-accent: #7c3aed;
    --color-accent-soft: rgba(124, 58, 237, 0.25);
    --color-accent-strong: rgba(124, 58, 237, 0.55);
    --shadow-lg: 0 40px 80px -40px rgba(12, 12, 30, 0.9);
    --shadow-md: 0 20px 40px -20px rgba(12, 12, 30, 0.7);
    --shadow-sm: 0 10px 30px -20px rgba(12, 12, 30, 0.65);
    --transition-base: 180ms ease;
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg-gradient);
    color: var(--color-text);
    font-family: inherit;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

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

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

.container {
    width: min(1100px, 92vw);
    margin: 0 auto;
}

.container.narrow {
    width: min(640px, 92vw);
}

.skip-link {
    position: absolute;
    left: -999px;
    top: -999px;
    padding: 0.75rem 1.5rem;
    background: var(--color-accent);
    color: #fff;
    border-radius: 999px;
    z-index: 1000;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link:focus {
    left: 1rem;
    top: 1rem;
}

.navbar {
    position: sticky;
    top: 0;
    z-index: 900;
    backdrop-filter: blur(16px);
    background: rgba(5, 6, 15, 0.75);
    border-bottom: 1px solid var(--border-glass);
    transition: padding var(--transition-base), background var(--transition-base), border-color var(--transition-base);
    padding: 1.2rem 0;
}

.navbar.scrolled {
    padding: 0.6rem 0;
    background: rgba(5, 6, 15, 0.9);
    border-color: rgba(255, 255, 255, 0.12);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    width: min(1100px, 92vw);
    margin: 0 auto;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.brand-logo {
    height: 32px;
}

.mobile-nav-toggle {
    display: none;
    background: transparent;
    border: none;
    color: inherit;
    cursor: pointer;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    position: relative;
    transition: background var(--transition-base);
}

.mobile-nav-toggle:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
}

.mobile-nav-toggle:hover {
    background: rgba(255, 255, 255, 0.05);
}

.mobile-nav-icon,
.mobile-nav-icon::before,
.mobile-nav-icon::after {
    position: absolute;
    left: 50%;
    width: 20px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    content: '';
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.mobile-nav-icon {
    top: 50%;
    transform: translate(-50%, -50%);
}

.mobile-nav-icon::before {
    top: -6px;
    transform: translateX(-50%);
}

.mobile-nav-icon::after {
    top: 6px;
    transform: translateX(-50%);
}

body.nav-open .mobile-nav-icon {
    background: transparent;
}

body.nav-open .mobile-nav-icon::before {
    transform: translate(-50%, 0) rotate(45deg);
    top: 0;
}

body.nav-open .mobile-nav-icon::after {
    transform: translate(-50%, 0) rotate(-45deg);
    top: 0;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-list.open {
    transform: translateY(0);
    opacity: 1;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
    position: relative;
    padding-bottom: 0.25rem;
    color: var(--color-muted);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
    transform: scaleX(1);
}

.nav-link:hover,
.nav-link:focus-visible {
    color: #fff;
}

main {
    padding-top: 2rem;
}

.hero {
    position: relative;
    overflow: hidden;
    padding: 6rem 0 7rem;
    text-align: center;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(160deg, rgba(124, 58, 237, 0.28) 0%, rgba(30, 64, 175, 0.2) 60%, transparent 100%);
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 640px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(2.75rem, 4vw + 1rem, 3.75rem);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-muted);
    margin-bottom: 2rem;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(0px);
    opacity: 0.7;
    z-index: 1;
}

.orb-a {
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.6), transparent 70%);
    top: -180px;
    left: -120px;
}

.orb-b {
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.45), transparent 70%);
    bottom: -140px;
    right: -100px;
}

.section {
    padding: 4.5rem 0;
}

.section-alt {
    background: rgba(8, 10, 25, 0.65);
}

.section-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.section-title {
    font-size: clamp(2rem, 3vw + 1rem, 2.75rem);
    margin-bottom: 0.75rem;
}

.section-subtitle {
    color: var(--color-muted);
    margin: 0 auto;
    max-width: 600px;
}

.grid {
    display: grid;
    gap: 1.75rem;
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
    padding: 2rem;
    border-radius: 24px;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-accent-strong), transparent 65%);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.card:hover::before,
.card:focus-within::before {
    opacity: 1;
}

.card:hover,
.card:focus-within {
    border-color: rgba(124, 58, 237, 0.65);
    box-shadow: var(--shadow-lg);
}

.card-title {
    margin-top: 0;
    margin-bottom: 0.75rem;
    font-size: 1.35rem;
}

.card-desc {
    margin: 0 0 1.25rem;
    color: var(--color-muted);
}

.card-list {
    padding-left: 1.1rem;
    margin: 0;
    display: grid;
    gap: 0.5rem;
    list-style: disc;
    color: var(--color-muted);
}

.card-list li strong {
    color: #fff;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.75rem;
    color: var(--color-muted);
}

.feature-list li {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    padding: 1rem 1.25rem;
}

.feature-list li strong {
    color: #fff;
}

.lead {
    max-width: 760px;
    margin: 0 auto 2.5rem;
    text-align: center;
    color: var(--color-muted);
    font-size: 1.1rem;
}

.content-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.content-card {
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 24px;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
}

.content-card h3 {
    margin-top: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.9rem 1.75rem;
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: 0.01em;
    cursor: pointer;
    border: 1px solid transparent;
    transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
    text-decoration: none;
}

.btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
}

.btn-primary {
    background: linear-gradient(135deg, #7c3aed, #4c1d95);
    color: #fff;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover,
.btn-primary:focus-visible {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn:disabled,
.btn[disabled] {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.form {
    display: grid;
    gap: 1.25rem;
    background: var(--surface-glass-strong);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.form-field {
    display: grid;
    gap: 0.5rem;
}

.form-field label {
    font-weight: 600;
}

.input,
.form select,
.form textarea {
    background: rgba(4, 7, 18, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 0.85rem 1rem;
    color: inherit;
    font: inherit;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.input:focus-visible {
    outline: none;
    border-color: rgba(124, 58, 237, 0.8);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.25);
}

.input-error {
    border-color: rgba(248, 113, 113, 0.9) !important;
    box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.25);
}

.validation-summary {
    background: rgba(248, 113, 113, 0.15);
    border: 1px solid rgba(248, 113, 113, 0.35);
    color: #fecaca;
    border-radius: 16px;
    padding: 1rem 1.25rem;
}

.validation-error {
    color: #fca5a5;
    font-size: 0.85rem;
}

.captcha-placeholder {
    border-radius: 16px;
    border: 1px dashed rgba(255, 255, 255, 0.2);
    padding: 1.5rem;
    text-align: center;
    color: var(--color-muted);
    background: rgba(255, 255, 255, 0.03);
}

.cta-banner {
    text-align: center;
    background: linear-gradient(120deg, rgba(124, 58, 237, 0.2), rgba(59, 130, 246, 0.25));
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.cta-content {
    display: grid;
    gap: 1.25rem;
    justify-items: center;
}

.muted-note {
    margin-top: 2rem;
    text-align: center;
    color: var(--color-muted);
}

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

.portal-card .btn {
    width: 100%;
}

.portal-placeholder {
    text-align: left;
    margin-top: 1.5rem;
    padding: 1.5rem;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--color-muted);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}

.portal-placeholder h3 {
    margin-bottom: 0.75rem;
    color: #fff;
}

.portal-placeholder ul {
    margin: 1rem 0 0;
    padding-left: 1.25rem;
}

.portal-placeholder li {
    margin-bottom: 0.5rem;
}

.portal-return {
    margin-top: 1.5rem;
}

.portal-return-link {
    color: var(--color-muted);
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    padding-bottom: 0.1rem;
}

.portal-return-link:hover,
.portal-return-link:focus-visible {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.35);
}

.site-footer {
    background: rgba(5, 6, 15, 0.85);
    border-top: 1px solid var(--border-glass);
    padding: 3rem 0 2rem;
}

.footer-inner {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.footer-brand p {
    color: var(--color-muted);
    max-width: 320px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.5rem;
    align-items: flex-start;
}

.footer-link {
    color: var(--color-muted);
    font-size: 0.95rem;
}

.footer-link:hover,
.footer-link:focus-visible {
    color: #fff;
}

.footer-meta {
    color: rgba(232, 233, 244, 0.55);
    font-size: 0.85rem;
}

body.nav-open {
    overflow: hidden;
}

.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 400ms ease, transform 400ms ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 900px) {
    .nav-list {
        position: absolute;
        inset: 0 auto auto 0;
        right: 0;
        top: 100%;
        background: rgba(5, 6, 15, 0.95);
        flex-direction: column;
        width: min(320px, 90vw);
        padding: 1.5rem;
        gap: 1rem;
        border-bottom-left-radius: 24px;
        border-bottom-right-radius: 24px;
        border: 1px solid rgba(255, 255, 255, 0.08);
        transform: translateY(-10px);
        opacity: 0;
        pointer-events: none;
        transition: transform var(--transition-base), opacity var(--transition-base);
    }

    .nav-inner {
        position: relative;
    }

    .nav-list.open {
        pointer-events: auto;
    }

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

    .footer-links {
        grid-auto-flow: row;
    }

    .hero {
        padding: 5rem 0 6rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .reveal {
        opacity: 1 !important;
        transform: none !important;
    }
}