/* ============================================
   Euonia Portal — Styles
   ============================================ */

/* --- CSS Variables --- */
:root {
    --color-bg: #0a0a0f;
    --color-bg-alt: #111118;
    --color-bg-card: #16161f;
    --color-bg-code: #0d0d14;
    --color-border: #222233;
    --color-border-light: #2a2a3a;

    --color-text: #d4d4e0;
    --color-text-muted: #7a7a8c;
    --color-text-bright: #f0f0f8;
    --color-heading: #ffffff;

    --color-accent: #6366f1;
    --color-accent-glow: rgba(99, 102, 241, 0.3);
    --color-accent-2: #8b5cf6;
    --color-net: #512bd4;
    --color-net-glow: rgba(81, 43, 212, 0.3);
    --color-java: #ed8b00;
    --color-java-glow: rgba(237, 139, 0, 0.3);

    --color-green: #22c55e;
    --color-orange: #f59e0b;
    --color-red: #ef4444;
    --color-blue: #3b82f6;
    --color-cyan: #06b6d4;
    --color-pink: #ec4899;
    --color-teal: #14b8a6;

    --font-sans: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--color-accent-glow);

    --nav-height: 64px;
    --max-width: 1200px;

    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* --- Light Theme --- */
[data-theme="light"] {
    --color-bg: #f5f5f7;
    --color-bg-alt: #eaeaef;
    --color-bg-card: #ffffff;
    --color-bg-code: #f0f0f3;
    --color-border: #d9d9df;
    --color-border-light: #c5c5cc;

    --color-text: #3a3a44;
    --color-text-muted: #6e6e7a;
    --color-text-bright: #1a1a24;
    --color-heading: #111118;

    --color-accent: #4f46e5;
    --color-accent-glow: rgba(79, 70, 229, 0.20);
    --color-accent-2: #6d63f0;
    --color-net: #4326c1;
    --color-net-glow: rgba(67, 38, 193, 0.15);
    --color-java: #cc7a00;
    --color-java-glow: rgba(204, 122, 0, 0.15);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
}

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    transition: background 0.4s var(--ease-out), color 0.4s var(--ease-out);
}

* {
    transition: background-color 0.4s var(--ease-out),
                border-color 0.4s var(--ease-out),
                box-shadow 0.4s var(--ease-out);
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s;
}
a:hover { color: var(--color-accent-2); }

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

strong { color: var(--color-text-bright); font-weight: 600; }

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: background 0.3s, border-color 0.3s;
}
[data-theme="light"] .navbar {
    background: rgba(245, 245, 247, 0.85);
}
.navbar.scrolled {
    background: rgba(10, 10, 15, 0.95);
    border-color: var(--color-border-light);
}
[data-theme="light"] .navbar.scrolled {
    background: rgba(245, 245, 247, 0.95);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.nav-logo {
    display: flex;
    align-items: baseline;
    gap: 8px;
    color: var(--color-text-bright);
    font-weight: 700;
    font-size: 1.1rem;
}
.logo-greek {
    font-size: 1.35rem;
    color: var(--color-accent);
    font-weight: 600;
}
.logo-text { letter-spacing: -0.02em; }

.nav-links {
    display: flex;
    gap: 8px;
}
.nav-links a {
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s;
}
.nav-links a:hover {
    color: var(--color-text-bright);
    background: rgba(255, 255, 255, 0.05);
}
.nav-links a.active {
    color: var(--color-accent);
    background: rgba(99, 102, 241, 0.1);
}

.nav-platforms { display: flex; gap: 8px; }
.platform-badge {
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: all 0.25s var(--ease-out);
}
.platform-badge.dotnet {
    background: rgba(81, 43, 212, 0.15);
    color: #a78bfa;
    border: 1px solid rgba(81, 43, 212, 0.3);
}
.platform-badge.dotnet:hover {
    background: rgba(81, 43, 212, 0.25);
    color: #c4b5fd;
}
.platform-badge.java {
    background: rgba(237, 139, 0, 0.15);
    color: #fbbf24;
    border: 1px solid rgba(237, 139, 0, 0.3);
}
.platform-badge.java:hover {
    background: rgba(237, 139, 0, 0.25);
    color: #fcd34d;
}

/* Theme toggle */
.theme-toggle {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--color-text-muted);
    padding: 0;
    transition: all 0.25s var(--ease-out);
}
.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-bright);
}
[data-theme="light"] .theme-toggle {
    background: rgba(0, 0, 0, 0.04);
    border-color: var(--color-border);
}
[data-theme="light"] .theme-toggle:hover {
    background: rgba(0, 0, 0, 0.08);
}
.theme-toggle .sun-icon { display: none; }
.theme-toggle .moon-icon { display: block; }
[data-theme="light"] .theme-toggle .sun-icon { display: block; }
[data-theme="light"] .theme-toggle .moon-icon { display: none; }

/* Mobile menu button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.mobile-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all 0.3s;
}

/* --- Code Block (shared) --- */
.code-block {
    background: var(--color-bg-code);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin: 0 auto;
}
.code-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--color-border);
}
.code-dot {
    width: 10px; height: 10px; border-radius: 50%;
}
.code-dot.red { background: #ff5f57; }
.code-dot.yellow { background: #febc2e; }
.code-dot.green { background: #28c840; }
.code-lang {
    margin-left: auto;
    font-size: 0.7rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}
.code-block pre {
    padding: 20px;
    margin: 0;
    overflow-x: auto;
}
.code-block code {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.7;
    color: var(--color-text);
}

/* Syntax highlighting */
.token-tag { color: #a78bfa; }
.token-annotation { color: #f9e547; }
.token-keyword { color: #c792ea; }
.token-class { color: #ffcb6b; }
.token-string { color: #c3e88d; }
.token-comment { color: #546e7a; font-style: italic; }
.token-cmd { color: #82aaff; }
.token-number { color: #f78c6c; }

/* --- Shared Animations --- */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in {
    animation: fadeInUp 0.6s var(--ease-out) forwards;
    opacity: 0;
}

/* --- Responsive Nav --- */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-platforms { display: none; }
    .mobile-menu-btn { display: flex; }
    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: var(--nav-height);
        left: 0; right: 0;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--color-border);
        padding: 16px;
        gap: 4px;
    }
    .nav-links.open a { padding: 12px 16px; }
}

/* Nav open state in mobile */
.navbar.mobile-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0; right: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: 16px;
    gap: 4px;
    z-index: 999;
}
[data-theme="light"] .navbar.mobile-open .nav-links {
    background: rgba(245, 245, 247, 0.98);
}
.navbar.mobile-open .nav-platforms {
    display: flex;
    padding: 8px 16px 16px;
    justify-content: center;
}

/* --- Footer (site-wide) --- */
.footer {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: 60px 24px 32px;
}
.footer-container {
    max-width: var(--max-width);
    margin: 0 auto 40px;
    display: flex;
    justify-content: space-between;
    gap: 48px;
    flex-wrap: wrap;
}
.footer-brand p {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    line-height: 1.7;
    margin-top: 12px;
}
.footer-logo {
    font-size: 1.1rem;
    color: var(--color-text-bright);
}
.footer-logo strong { color: var(--color-accent); }
.footer-links {
    display: flex;
    gap: 60px;
    flex-wrap: wrap;
}
.footer-col { display: flex; flex-direction: column; gap: 8px; }
.footer-col h4 {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-text-bright);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 4px;
}
.footer-col a {
    font-size: 0.85rem !important;
    color: var(--color-text-muted) !important;
    transition: color 0.2s !important;
    text-decoration: none !important;
}
.footer-col a:hover { color: var(--color-text-bright) !important; }
.footer-bottom {
    max-width: var(--max-width);
    margin: 0 auto;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
    text-align: center;
}
.footer-bottom p {
    font-size: 0.8rem;
    color: var(--color-text-muted) !important;
}

@media (max-width: 768px) {
    .footer-container { flex-direction: column; gap: 32px; }
    .footer-links { gap: 32px; }
}