/* ======================================================
   RESET & BASE
====================================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --brand: #1BC5BD;
    --brand-dark: #13a09a;
    --brand-glow: rgba(27, 197, 189, 0.25);
    --bg: #0c0e12;
    --bg-2: #111418;
    --bg-card: rgba(255, 255, 255, 0.04);
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(27, 197, 189, 0.35);
    --text: #f0f4f8;
    --text-muted: #8a95a3;
    --text-dim: #4a5568;
    --radius: 16px;
    --radius-sm: 10px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

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

/* ======================================================
   BACKGROUND CANVAS
====================================================== */
.bg-canvas {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.bg-canvas::before {
    content: '';
    position: absolute;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(27, 197, 189, 0.12) 0%, transparent 70%);
    top: -200px;
    left: -200px;
    animation: orb-drift 20s ease-in-out infinite alternate;
}

.bg-canvas::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.10) 0%, transparent 70%);
    bottom: 0;
    right: -100px;
    animation: orb-drift 25s ease-in-out infinite alternate-reverse;
}

@keyframes orb-drift {
    0% {
        transform: translate(0, 0) scale(1);
    }
    100% {
        transform: translate(80px, 60px) scale(1.15);
    }
}

@keyframes fade-up {
    0% {
        opacity: 0;
        transform: translateY(24px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ======================================================
   LAYOUT
====================================================== */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
    z-index: 1;
}

/* ======================================================
   NAV BAR
====================================================== */
nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(12, 14, 18, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-weight: 800;
    font-size: 1.2rem;
}

.nav-logo img {
    height: 32px;
    width: auto;
    margin-right: 0.6rem;
}

.nav-logo .logo-text {
    color: var(--text);
}

.nav-logo .logo-accent {
    color: var(--brand);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-links a {
    padding: 0.4rem 0.85rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.2s, background 0.2s;
}

.nav-links a:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.06);
}

.nav-links a.active {
    color: var(--brand);
}

.nav-cta {
    background: var(--brand) !important;
    color: #000 !important;
    font-weight: 700 !important;
    border-radius: 8px !important;
    padding: 0.4rem 1rem !important;
    transition: background 0.2s, transform 0.15s !important;
}

.nav-cta:hover {
    background: var(--brand-dark) !important;
    transform: translateY(-1px);
}

/* ======================================================
   SHARED BUTTONS
====================================================== */
.btn-primary {
    background: var(--brand);
    color: #000;
    font-weight: 700;
    padding: 0.85rem 2rem;
    border-radius: 12px;
    font-size: 0.95rem;
    transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
    box-shadow: 0 0 0 0 var(--brand-glow);
}

.btn-primary:hover {
    background: var(--brand-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--brand-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    font-weight: 600;
    padding: 0.85rem 2rem;
    border-radius: 12px;
    font-size: 0.95rem;
    border: 1px solid var(--border);
    transition: border-color 0.2s, background 0.2s, transform 0.15s;
}

.btn-secondary:hover {
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.04);
    transform: translateY(-2px);
}

/* ======================================================
   SHARED SECTION ELEMENTS
====================================================== */
hr.section-divider {
    border: none;
    border-top: 1px solid var(--border);
    position: relative;
    z-index: 1;
}

.section {
    padding: 5rem 0;
    position: relative;
    z-index: 1;
}

.section-label {
    display: inline-block;
    color: var(--brand);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 580px;
    line-height: 1.7;
}

.section-header {
    margin-bottom: 3rem;
}

/* ======================================================
   FOOTER
====================================================== */
footer {
    border-top: 1px solid var(--border);
    position: relative;
    z-index: 1;
    padding: 2.5rem 0;
}

.footer-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-brand {
    font-weight: 800;
    font-size: 1.05rem;
}

.footer-brand span {
    color: var(--brand);
}

.footer-copy {
    font-size: 0.82rem;
    color: var(--text-dim);
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--text-muted);
    transition: color 0.2s;
}

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

/* ======================================================
   HERO  (index.html only)
====================================================== */
.hero {
    padding: 7rem 0 5rem;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(27, 197, 189, 0.1);
    border: 1px solid rgba(27, 197, 189, 0.25);
    color: var(--brand);
    padding: 0.35rem 0.9rem;
    border-radius: 100px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    margin-bottom: 2rem;
    animation: fade-up 0.6s ease-out both;
}

.hero-badge::before {
    content: '●';
    font-size: 0.6rem;
}

h1.hero-title {
    font-size: clamp(2.6rem, 6vw, 4.5rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    animation: fade-up 0.7s ease-out 0.1s both;
}

h1.hero-title .accent {
    color: var(--brand);
    position: relative;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    font-weight: 400;
    line-height: 1.7;
    animation: fade-up 0.7s ease-out 0.2s both;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fade-up 0.7s ease-out 0.3s both;
}

.hero-visual {
    margin-top: 4.5rem;
    position: relative;
    animation: fade-up 0.8s ease-out 0.4s both;
}

.stats-strip {
    display: flex;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
}

.stat-item {
    flex: 1;
    min-width: 150px;
    padding: 1.75rem 1.5rem;
    text-align: center;
    border-right: 1px solid var(--border);
}

.stat-item:last-child {
    border-right: none;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--brand);
    display: block;
    letter-spacing: -0.04em;
}

.stat-label {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    font-weight: 500;
}

/* ======================================================
   SERVICES GRID  (index.html only)
====================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.25rem;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem;
    transition: border-color 0.25s, transform 0.2s, box-shadow 0.25s;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--brand), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.service-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.service-card:hover::before {
    opacity: 1;
}

.service-card.pre-launch {
    border-style: dashed;
    border-color: rgba(255, 255, 255, 0.1);
}

.service-card.pre-launch:hover {
    border-style: solid;
    border-color: var(--border-hover);
}

.service-icon {
    width: 48px;
    height: 48px;
    background: rgba(27, 197, 189, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 1.1rem;
    transition: background 0.25s;
}

.service-card:hover .service-icon {
    background: rgba(27, 197, 189, 0.18);
}

.service-name {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.45rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.badge-pre {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--brand);
    background: rgba(27, 197, 189, 0.1);
    border: 1px solid rgba(27, 197, 189, 0.2);
    padding: 0.15rem 0.45rem;
    border-radius: 100px;
}

.service-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ======================================================
   OPEN SOURCE SECTION  (index.html only)
====================================================== */
.opensource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
    margin-bottom: 3rem;
}

.os-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem;
    transition: border-color 0.25s, transform 0.2s, box-shadow 0.25s;
}

.os-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-3px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.25);
}

.os-icon {
    font-size: 1.6rem;
    margin-bottom: 0.85rem;
}

.os-title {
    font-size: 0.98rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.os-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.github-cta {
    text-align: center;
}

.github-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text);
    font-weight: 700;
    font-size: 1rem;
    padding: 0.9rem 2rem;
    border-radius: 12px;
    transition: background 0.2s, border-color 0.2s, transform 0.15s;
}

.github-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.github-sub {
    margin-top: 0.75rem;
    font-size: 0.82rem;
    color: var(--text-dim);
}

/* ======================================================
   COMMUNITY LINKS  (index.html only)
====================================================== */
.community-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.community-card {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: border-color 0.25s, transform 0.2s, box-shadow 0.2s;
}

.community-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-3px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.25);
}

.community-card-icon {
    font-size: 1.6rem;
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
}

.community-card-name {
    font-size: 0.98rem;
    font-weight: 700;
}

.community-card-desc {
    font-size: 0.84rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.community-card-arrow {
    margin-top: auto;
    font-size: 0.82rem;
    color: var(--brand);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: gap 0.2s;
}

.community-card:hover .community-card-arrow {
    gap: 0.5rem;
}

/* ======================================================
   CTA BANNER  (index.html only)
====================================================== */
.cta-section {
    padding: 5rem 0;
    position: relative;
    z-index: 1;
}

.cta-inner {
    background: linear-gradient(135deg, rgba(27, 197, 189, 0.08) 0%, rgba(99, 102, 241, 0.06) 100%);
    border: 1px solid rgba(27, 197, 189, 0.2);
    border-radius: 24px;
    padding: 4rem 2rem;
    text-align: center;
}

.cta-inner h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
}

.cta-inner p {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 460px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

/* ======================================================
   CHANGELOG PAGE HEADER  (changelog/index.html only)
====================================================== */
.page-header {
    padding: 4rem 0 3rem;
    text-align: center;
    position: relative;
    z-index: 1;
    animation: fade-up 0.6s ease-out both;
}

.page-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(27, 197, 189, 0.1);
    border: 1px solid rgba(27, 197, 189, 0.25);
    color: var(--brand);
    padding: 0.35rem 0.9rem;
    border-radius: 100px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    margin-bottom: 1.25rem;
}

.page-badge::before {
    content: '●';
    font-size: 0.6rem;
}

.page-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 0.75rem;
}

.page-subtitle {
    color: var(--text-muted);
    font-size: 1rem;
    max-width: 500px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ======================================================
   MARKDOWN CONTENT  (changelog/index.html only)
====================================================== */
.markdown-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
    animation: fade-up 0.7s ease-out 0.1s both;
}

.markdown-container h1,
.markdown-container h2,
.markdown-container h3,
.markdown-container h4 {
    color: var(--text);
    font-weight: 700;
}

.markdown-container h1 {
    font-size: 1.6rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.75rem;
    margin-bottom: 1.25rem;
    color: var(--brand);
    letter-spacing: -0.02em;
}

.markdown-container h2 {
    font-size: 1.3rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.5rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.markdown-container h1:first-child,
.markdown-container h2:first-child,
.markdown-container h3:first-child {
    margin-top: 0;
}

.markdown-container h3 {
    font-size: 1.05rem;
    color: var(--brand);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.markdown-container p {
    margin-bottom: 1rem;
    color: var(--text-muted);
    line-height: 1.75;
}

.markdown-container ul,
.markdown-container ol {
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-muted);
}

.markdown-container li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.markdown-container li::marker {
    color: var(--brand);
}

.markdown-container blockquote {
    border-left: 3px solid var(--brand);
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
    background: rgba(27, 197, 189, 0.05);
    border-radius: 0 8px 8px 0;
}

.markdown-container code {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    padding: 2px 6px;
    border-radius: 5px;
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.85em;
    color: var(--brand);
}

.markdown-container pre {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem;
    overflow-x: auto;
    margin-bottom: 1.25rem;
}

.markdown-container pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: 0.88rem;
}

.markdown-container a {
    color: var(--brand);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.markdown-container hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2rem 0;
}

/* ======================================================
   LOADING & ERROR  (changelog/index.html only)
====================================================== */
.loading {
    text-align: center;
    padding: 3rem 0;
    color: var(--text-muted);
}

.loading-spinner {
    width: 36px;
    height: 36px;
    border: 2px solid var(--border);
    border-top-color: var(--brand);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.error-state {
    text-align: center;
    padding: 3rem 0;
    color: #ff6b6b;
}

/* ======================================================
   RESPONSIVE
====================================================== */
@media (max-width: 640px) {
    .nav-links {
        display: none;
    }

    .hero {
        padding: 5rem 0 3rem;
    }

    .stat-item {
        min-width: 120px;
    }

    .cta-inner {
        padding: 3rem 1.5rem;
    }

    .markdown-container {
        padding: 1.5rem;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }
}