/* ===== SHARED PAGE STYLES (Dark Theme) ===== */
/* Used by: /pages/*.html */

:root {
    --bg-primary: #000000;
    --bg-secondary: #0a0a1a;
    --bg-card: rgba(255, 255, 255, 0.03);
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --text-primary: #f0f0f5;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-blue: #3b82f6;
    --accent-violet: #8b5cf6;
    --accent-cyan: #06b6d4;
    --accent-green: #10b981;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', system-ui, sans-serif;
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.7;
    min-height: 100vh;
}

a { color: var(--accent-blue); text-decoration: none; transition: color 0.2s; }
a:hover { color: #93bbfd; }

/* ===== NAVBAR ===== */
.page-nav {
    position: sticky; top: 0; z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 5%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle);
}

.page-nav .logo {
    display: flex; align-items: center; gap: 10px;
    font-size: 1.15rem; font-weight: 800; color: var(--text-primary);
    text-decoration: none;
}

.page-nav .logo img {
    width: 36px; height: 36px; border-radius: 10px;
}

.page-nav .nav-links {
    display: flex; align-items: center; gap: 20px;
}

.page-nav .nav-links a {
    color: var(--text-secondary); font-size: 0.85rem; font-weight: 500;
    transition: color 0.2s;
}

.page-nav .nav-links a:hover { color: var(--text-primary); }

.page-nav .nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.page-nav .nav-link-signin {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    transition: color 0.2s;
    text-decoration: none;
}

.page-nav .nav-link-signin:hover {
    color: var(--text-primary);
}

.nav-cta {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-violet));
    color: #fff !important; padding: 8px 20px; border-radius: 8px;
    font-weight: 600; font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
}

.nav-cta:hover { opacity: 0.9; color: #fff !important; }

/* ===== HERO ===== */
.page-hero {
    position: relative;
    padding: 100px 5% 60px;
    text-align: center;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
    width: 800px; height: 800px;
    background: radial-gradient(circle, rgba(59,130,246,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.page-hero .badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    padding: 6px 16px; border-radius: 100px;
    font-size: 0.78rem; font-weight: 600;
    color: var(--accent-blue);
    margin-bottom: 20px;
}

.page-hero h1 {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.page-hero h1 .gradient-text {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-violet));
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
}

.page-hero .subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 32px;
}

/* ===== CONTENT SECTION ===== */
.page-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 5% 60px;
}

.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 24px;
    transition: border-color 0.3s;
}

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

.glass-card h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.4rem; font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.glass-card h3 {
    font-size: 1.1rem; font-weight: 600;
    color: var(--text-primary);
    margin: 20px 0 10px;
}

.glass-card p {
    color: var(--text-secondary);
    margin-bottom: 14px;
    font-size: 0.92rem;
}

.glass-card ul, .glass-card ol {
    padding-left: 20px;
    margin-bottom: 14px;
}

.glass-card li {
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-size: 0.92rem;
}

.glass-card li strong {
    color: var(--text-primary);
}

/* ===== COMPARISON TABLE ===== */
.compare-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border-radius: 12px;
    overflow: hidden;
    margin: 24px 0;
}

.compare-table th {
    background: rgba(59, 130, 246, 0.08);
    padding: 14px 18px;
    text-align: left;
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-subtle);
}

.compare-table td {
    padding: 12px 18px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-subtle);
}

.compare-table tr:last-child td {
    border-bottom: none;
}

.compare-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.check { color: var(--accent-green); }
.cross { color: #ef4444; }

/* ===== HIGHLIGHT BOX ===== */
.highlight-box {
    background: linear-gradient(135deg, rgba(59,130,246,0.06), rgba(139,92,246,0.06));
    border: 1px solid rgba(59,130,246,0.15);
    border-radius: 12px;
    padding: 20px 24px;
    margin: 20px 0;
}

.highlight-box p {
    color: var(--text-secondary);
    margin: 0;
}

/* ===== CTA SECTION ===== */
.cta-section {
    text-align: center;
    padding: 60px 5%;
    position: relative;
}

.cta-section::before {
    content: '';
    position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
    width: 600px; height: 300px;
    background: radial-gradient(circle, rgba(139,92,246,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.cta-section h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.8rem; font-weight: 700;
    margin-bottom: 12px;
}

.cta-section p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.btn-cta {
    display: inline-flex; align-items: center; gap: 8px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-violet));
    color: #fff; padding: 14px 32px;
    border-radius: 12px; font-weight: 700;
    font-size: 0.95rem; border: none; cursor: pointer;
    transition: all 0.25s;
    text-decoration: none;
}

.btn-cta:hover {
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.25);
    transform: translateY(-1px);
    color: #fff;
}

/* ===== CHANGELOG ENTRY ===== */
.changelog-entry {
    position: relative;
    padding-left: 28px;
    margin-bottom: 32px;
}

.changelog-entry::before {
    content: '';
    position: absolute; left: 0; top: 8px;
    width: 12px; height: 12px;
    border-radius: 50%;
    background: var(--accent-blue);
    box-shadow: 0 0 12px rgba(59, 130, 246, 0.3);
}

.changelog-entry::after {
    content: '';
    position: absolute; left: 5px; top: 24px;
    width: 2px; height: calc(100% + 8px);
    background: var(--border-subtle);
}

.changelog-entry:last-child::after { display: none; }

.changelog-entry .date {
    font-size: 0.78rem; color: var(--accent-blue);
    font-weight: 600; margin-bottom: 4px;
}

.changelog-entry .version {
    font-size: 1.1rem; font-weight: 700;
    color: var(--text-primary); margin-bottom: 8px;
}

.changelog-entry .changes {
    padding-left: 16px;
}

.changelog-entry .changes li {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 4px;
}

.tag {
    display: inline-block;
    padding: 2px 8px; border-radius: 4px;
    font-size: 0.7rem; font-weight: 700;
    margin-right: 6px;
}

.tag-new { background: rgba(16,185,129,0.12); color: var(--accent-green); }
.tag-fix { background: rgba(59,130,246,0.12); color: var(--accent-blue); }
.tag-improve { background: rgba(139,92,246,0.12); color: var(--accent-violet); }

/* ===== BLOG GRID ===== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.blog-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    overflow: hidden;
    transition: all 0.3s;
    text-decoration: none;
}

.blog-card:hover {
    border-color: rgba(59, 130, 246, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.blog-card .card-img {
    width: 100%; height: 160px;
    object-fit: cover;
    border-bottom: 1px solid var(--border-subtle);
}

.blog-card .card-body {
    padding: 20px;
}

.blog-card .card-tag {
    font-size: 0.72rem; font-weight: 600;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.blog-card .card-title {
    font-size: 1rem; font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.3;
}

.blog-card .card-desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ===== FEATURE GRID ===== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin: 24px 0;
}

.feature-item {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 24px;
    transition: all 0.3s;
}

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

.feature-item .icon {
    width: 44px; height: 44px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem;
    margin-bottom: 14px;
}

.feature-item h3 {
    font-size: 0.95rem; font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ===== CONTACT FORM ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-top: 24px;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    margin-bottom: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.08);
}

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

.contact-form textarea {
    min-height: 120px;
    resize: vertical;
}

.contact-info-item {
    display: flex; align-items: flex-start; gap: 14px;
    margin-bottom: 24px;
}

.contact-info-item .ci-icon {
    width: 42px; height: 42px;
    border-radius: 10px;
    background: rgba(59, 130, 246, 0.08);
    display: flex; align-items: center; justify-content: center;
    color: var(--accent-blue);
    font-size: 1rem;
    flex-shrink: 0;
}

.contact-info-item .ci-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.contact-info-item .ci-value {
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* ===== PAGE FOOTER ===== */
.page-footer {
    border-top: 1px solid var(--border-subtle);
    padding: 48px 5% 32px;
    margin-top: 40px;
}

.page-footer .footer-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-brand-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 24px;
    width: 100%;
}

.footer-brand-left {
    text-align: left;
}

.footer-brand-right {
    text-align: right;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.footer-meta-logo {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-primary);
    justify-content: flex-end;
}

@media (max-width: 768px) {
    .footer-brand-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        margin-bottom: 24px;
    }
    .footer-brand-left {
        text-align: left;
    }
    .footer-brand-right {
        text-align: left;
        align-items: flex-start;
    }
    .footer-meta-logo {
        justify-content: flex-start;
    }
}

.page-footer .footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.page-footer h4 {
    font-size: 0.85rem; font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
}

.page-footer .footer-links {
    display: flex; flex-direction: column; gap: 10px;
}

.page-footer .footer-links a {
    color: var(--text-muted);
    font-size: 0.82rem;
    transition: color 0.2s;
}

.page-footer .footer-links a:hover {
    color: var(--text-primary);
}

.page-footer .footer-bottom {
    display: flex; justify-content: space-between;
    align-items: center; flex-wrap: wrap; gap: 16px;
    padding-top: 20px;
    border-top: 1px solid var(--border-subtle);
}

.page-footer .footer-bottom .socials {
    display: flex; gap: 14px;
}

.page-footer .footer-bottom .socials a {
    color: var(--text-muted);
    font-size: 1rem;
}

.page-footer .footer-bottom .socials a:hover {
    color: var(--text-primary);
}

.page-footer .footer-bottom .copy {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .page-hero { padding: 70px 5% 40px; }
    .page-hero h1 { font-size: 1.8rem; }
    .contact-grid { grid-template-columns: 1fr; }
    .page-nav .nav-links { display: none; }
    .glass-card { padding: 24px 18px; }
}