:root {
    --bg-primary: #0e0f18;
    --bg-secondary: #1a1d27;
    --bg-card: #222533;
    --border-color: #2d3148;
    --text-primary: #e4e6f0;
    --text-secondary: #8b8fa3;
    --accent: #6c5ce7;
    --accent-hover: #7c6ff7;
    --success: #00b894;
    --warning: #fdcb6e;
    --danger: #e17055;
    --info: #74b9ff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
}

/* === NAVBAR === */
.navbar-custom {
    background: rgb(21, 22, 31);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 0.8rem 0;
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
}

.lang-switch {
    display: flex;
    gap: 0.35rem;
    margin-left: 0.5rem;
}
.lang-switch a {
    display: block;
    width: 26px;
    height: 18px;
    border-radius: 3px;
    overflow: hidden;
    opacity: 0.45;
    transition: opacity 0.2s, box-shadow 0.2s;
    border: 1px solid transparent;
}
.lang-switch a svg {
    display: block;
    width: 100%;
    height: 100%;
}
.lang-switch a:hover {
    opacity: 0.8;
}
.lang-switch a.active {
    opacity: 1;
    /*! box-shadow: 0 0 0 2px var(--accent); */
    /*! border-color: var(--accent); */
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.6rem;
    cursor: pointer;
    padding: 0.25rem;
    line-height: 1;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.navbar-custom .navbar-brand {
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.navbar-custom .navbar-brand i { color: var(--accent); }

.navbar-custom .nav-link {
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    transition: color 0.2s;
}

.navbar-custom .nav-link:hover,
.navbar-custom .nav-link.active { color: var(--text-primary); }

.btn-accent {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 0.5rem 1.25rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-accent:hover { background: var(--accent-hover); color: #fff; transform: translateY(-1px); }

/* === HERO === */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8rem 1.5rem 4rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(108, 92, 231, 0.12) 0%, transparent 60%);
    pointer-events: none;
}

.hero-video {
    width: 250px;
    border-radius: 16px;
    margin-bottom: 2.5rem;
    box-shadow: 0 20px 60px rgba(108, 92, 231, 0.2);
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.hero h1 span { color: var(--accent); }

.hero .subtitle {
    color: var(--text-secondary);
    font-size: 1.15rem;
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.hero-badges {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 2rem;
}

.hero-badge {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.hero-badge i { color: var(--accent); font-size: 1.1rem; }

/* === SECTIONS === */
section { padding: 5rem 0; }

.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.75rem;
}

.section-subtitle {
    color: var(--text-secondary);
    text-align: center;
    font-size: 1rem;
    max-width: 550px;
    margin: 0 auto 3rem;
}

/* === HOW IT WORKS === */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.step-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: transform 0.2s, border-color 0.2s;
}

.step-card:hover { transform: translateY(-4px); border-color: var(--accent); }

.step-number {
    width: 48px;
    height: 48px;
    background: rgba(108, 92, 231, 0.15);
    color: var(--accent);
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
}

.step-card h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.5rem; }
.step-card p { color: var(--text-secondary); font-size: 0.85rem; margin: 0; }

/* === PORTALS === */
.portals-section { background: var(--bg-secondary); }

.portal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    max-width: 1000px;
    margin: 0 auto;
}

.portal-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.2s, border-color 0.2s;
}

.portal-card:hover { transform: translateY(-2px); border-color: var(--accent); }

.portal-icon {
    width: 44px;
    height: 44px;
    background: rgba(108, 92, 231, 0.12);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.portal-icon i { color: var(--accent); font-size: 1.2rem; }

.portal-info h4 { font-size: 0.95rem; font-weight: 600; margin: 0 0 0.15rem; }
.portal-info span { font-size: 0.78rem; color: var(--text-secondary); }

.portal-badge {
    font-size: 0.65rem;
    background: rgba(108, 92, 231, 0.15);
    color: var(--accent);
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    margin-left: auto;
    white-space: nowrap;
}

/* === FEATURES === */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    transition: border-color 0.2s;
}

.feature-card:hover { border-color: var(--accent); }

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(108, 92, 231, 0.12);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.feature-icon i { color: var(--accent); font-size: 1.3rem; }
.feature-card h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.5rem; }
.feature-card p { color: var(--text-secondary); font-size: 0.85rem; margin: 0; }

/* === SUBPAGES === */
.page-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 7rem 1.5rem 4rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--accent);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    transition: color 0.2s;
}

.back-link:hover { color: var(--accent-hover); }

.page-content h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.page-content .subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 2.5rem;
    margin-top: -1.5rem;
}

.guide-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.guide-section h2 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.guide-section h2 i { color: var(--accent); }

.guide-section p,
.guide-section li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

.guide-section ol,
.guide-section ul {
    padding-left: 1.25rem;
    margin-bottom: 0;
}

.guide-section li { margin-bottom: 0.5rem; }

.guide-section code {
    background: var(--bg-primary);
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.82rem;
    color: var(--accent);
}

/* === REQUIREMENT CARDS === */
.req-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.req-card h2 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.req-card h2 i { color: var(--accent); }

.req-table { width: 100%; border-collapse: collapse; }
.req-table tr { border-bottom: 1px solid var(--border-color); }
.req-table tr:last-child { border-bottom: none; }

.req-table td {
    padding: 0.75rem 0;
    font-size: 0.9rem;
    vertical-align: top;
}

.req-table td:first-child {
    color: var(--text-secondary);
    width: 180px;
    font-weight: 500;
}

.req-table td:last-child { color: var(--text-primary); }

.check-item {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    margin-bottom: 0.6rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.check-item:last-child { margin-bottom: 0; }
.check-item i { color: var(--success); margin-top: 0.15rem; flex-shrink: 0; }

/* === ALERTS === */
.alert-info {
    background: rgba(108, 92, 231, 0.1);
    border: 1px solid rgba(108, 92, 231, 0.25);
    border-radius: 10px;
    padding: 1rem 1.25rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 1rem;
}

.alert-info i { color: var(--accent); }

/* === BLOG LISTING === */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 1.5rem;
}

.blog-card-link {
    text-decoration: none;
    color: inherit;
}

.blog-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.2s, border-color 0.2s;
}

.blog-card:hover { transform: translateY(-4px); border-color: var(--accent); }

.blog-card-image {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.blog-card-body { padding: 1.5rem; }

.blog-card-meta {
    display: flex;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 0.78rem;
    margin-bottom: 0.75rem;
}

.blog-card-meta i { color: var(--accent); margin-right: 0.25rem; }

.blog-card h2 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.blog-card p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.6;
    margin: 0;
}

.blog-read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 1rem;
}

/* === BLOG POST === */
.blog-post-meta {
    display: flex;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
}

.blog-post-meta i { color: var(--accent); margin-right: 0.25rem; }

.blog-post h1 { margin-bottom: 1.5rem; }

.blog-post-hero {
    height: 320px;
    background-size: cover;
    background-position: center;
    border-radius: 16px;
    margin-bottom: 2rem;
}

.blog-post-content {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
}

.blog-post-content h2 {
    color: var(--text-primary);
    font-size: 1.3rem;
    font-weight: 600;
    margin: 2rem 0 0.75rem;
}

.blog-post-content p { margin-bottom: 1rem; }

.blog-post-content ul,
.blog-post-content ol {
    padding-left: 1.25rem;
    margin-bottom: 1rem;
}

.blog-post-content li { margin-bottom: 0.4rem; }

.blog-post-content strong { color: var(--text-primary); }

.blog-post-cta {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    margin-top: 3rem;
}

.blog-post-cta h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.blog-post-cta p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
}

/* === FOOTER === */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

footer a { color: var(--accent); text-decoration: none; }
footer a:hover { color: var(--accent-hover); }
.footer-links { margin-bottom: 0.75rem; }
.footer-links a { margin: 0 0.75rem; }

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgb(21, 22, 31);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 1rem 1.5rem 1.25rem;
        gap: 0.25rem;
    }
    .nav-menu.open {
        display: flex;
    }
    .nav-menu .nav-link {
        width: 100%;
        padding: 0.6rem 0;
        font-size: 1rem;
    }
    .nav-menu .btn-accent {
        width: 100%;
        text-align: center;
        margin-top: 0.5rem;
    }
    .nav-menu .lang-switch {
        margin: 0.5rem 0 0;
        justify-content: center;
    }
    .hero h1 { font-size: 2rem; }
    .hero .subtitle { font-size: 1rem; }
    .hero-video { width: 140px; }
    .steps-grid { grid-template-columns: 1fr; }
    .portal-grid { grid-template-columns: 1fr; }
    .page-content { padding: 6rem 1rem 3rem; }
    .req-table td:first-child { width: 120px; }
    .blog-grid { grid-template-columns: 1fr; }
    .blog-post-hero { height: 200px; }
}