/* ============================================================
   main.css — Global Reset, CSS Variables, Dark Cosmic Theme
   basyid.dev
   ============================================================ */

:root {
    --color-void:       #000005;
    --color-cosmos:     #030014;
    --color-nebula:     #0d0d2b;
    --color-star:       #ffffff;
    --color-stardust:   #a8b2d8;
    --color-aurora:     #64ffda;
    --color-plasma:     #7b2fff;
    --color-supernova:  #ff6b35;
    --color-gold:       #ffd700;
    --color-danger:     #ff4444;
    --color-success:    #44ff88;

    --font-primary:  'Space Grotesk', sans-serif;
    --font-mono:     'JetBrains Mono', monospace;
    --font-display:  'Cinzel', serif;

    --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-med:  0.4s ease;
    --transition-fast: 0.2s ease;

    --blur-glass:   blur(12px);
    --shadow-glow:  0 0 30px rgba(100, 255, 218, 0.15);
    --shadow-card:  0 4px 24px rgba(0, 0, 5, 0.6);

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;

    --max-width: 1200px;
    --header-h:  70px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    background-color: var(--color-void);
    color: var(--color-star);
    font-family: var(--font-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5 { line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.6rem); }
p { color: var(--color-stardust); margin-bottom: 1rem; }
a { color: var(--color-aurora); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-star); }
code, pre { font-family: var(--font-mono); }

/* ---- Utility Classes ---- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
.text-aurora  { color: var(--color-aurora); }
.text-plasma  { color: var(--color-plasma); }
.text-gold    { color: var(--color-gold); }
.text-center  { text-align: center; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.sr-only { @extend .visually-hidden; }

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1.4rem;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}
.btn-primary {
    background: var(--color-aurora);
    color: var(--color-void);
}
.btn-primary:hover {
    background: var(--color-star);
    color: var(--color-void);
    box-shadow: 0 0 20px rgba(100, 255, 218, 0.5);
}
.btn-secondary {
    background: transparent;
    color: var(--color-aurora);
    border: 1px solid var(--color-aurora);
}
.btn-secondary:hover {
    background: rgba(100, 255, 218, 0.1);
}
.btn-danger {
    background: var(--color-danger);
    color: var(--color-star);
}
.btn-danger:hover { background: #cc2222; }
.btn-cta {
    background: var(--color-supernova);
    color: var(--color-star);
    font-size: 1rem;
    padding: 0.8rem 2rem;
    border-radius: var(--radius-md);
}
.btn-cta:hover {
    background: #ff8555;
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.5);
    color: var(--color-star);
    transform: translateY(-2px);
}
.btn-sm { padding: 0.35rem 0.8rem; font-size: 0.8rem; }

/* ---- Glass Card ---- */
.glass-card {
    background: rgba(13, 13, 43, 0.7);
    border: 1px solid rgba(100, 255, 218, 0.1);
    border-radius: var(--radius-md);
    backdrop-filter: var(--blur-glass);
    -webkit-backdrop-filter: var(--blur-glass);
    box-shadow: var(--shadow-card);
    transition: border-color var(--transition-med), box-shadow var(--transition-med);
}
.glass-card:hover {
    border-color: rgba(100, 255, 218, 0.3);
    box-shadow: var(--shadow-glow), var(--shadow-card);
}

/* ---- Section Layout ---- */
.section {
    padding: 5rem 0;
}
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}
.section-header h2 {
    font-family: var(--font-display);
    color: var(--color-star);
    margin-bottom: 0.5rem;
}
.section-header p {
    color: var(--color-stardust);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}
.section-divider {
    display: block;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-aurora), var(--color-plasma));
    margin: 1rem auto;
    border-radius: 2px;
}

/* ---- Loading Screen ---- */
#loading-screen {
    position: fixed;
    inset: 0;
    background: var(--color-void);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease;
}
#loading-screen.fade-out { opacity: 0; pointer-events: none; }
.loading-title {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--color-aurora);
    letter-spacing: 0.2em;
    margin-bottom: 2rem;
}
.loading-bar-wrap {
    width: 300px;
    height: 2px;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    overflow: hidden;
}
.loading-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-aurora), var(--color-plasma));
    width: 0%;
    transition: width 0.3s ease;
    border-radius: 2px;
}
.loading-text {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--color-stardust);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* ---- Portfolio Nav ---- */
#portfolio-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-h);
    background: rgba(3, 0, 20, 0.85);
    backdrop-filter: var(--blur-glass);
    -webkit-backdrop-filter: var(--blur-glass);
    border-bottom: 1px solid rgba(100, 255, 218, 0.08);
    z-index: 100;
    display: flex;
    align-items: center;
    transform: translateY(-100%);
    transition: transform var(--transition-med);
}
#portfolio-nav.visible { transform: translateY(0); }
.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--color-aurora);
    letter-spacing: 0.1em;
}
.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}
.nav-links a {
    color: var(--color-stardust);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition-fast);
    padding: 0.25rem 0;
    border-bottom: 2px solid transparent;
}
.nav-links a:hover,
.nav-links a.active {
    color: var(--color-aurora);
    border-bottom-color: var(--color-aurora);
}
.nav-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-star);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ---- Footer ---- */
#site-footer {
    background: var(--color-cosmos);
    border-top: 1px solid rgba(100, 255, 218, 0.08);
    padding: 2rem 0;
    text-align: center;
}
.footer-inner { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
.footer-copy { color: var(--color-stardust); font-size: 0.85rem; margin-bottom: 0.25rem; }
.footer-tagline { color: rgba(168,178,216,0.5); font-size: 0.8rem; font-style: italic; }

/* ---- Form Control (used in search) ---- */
.form-control {
    width: 100%;
    padding: 0.65rem 0.9rem;
    background: rgba(0,0,5,0.5);
    border: 1px solid rgba(100,255,218,0.15);
    border-radius: var(--radius-sm);
    color: var(--color-star);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}
.form-control:focus {
    border-color: var(--color-aurora);
    box-shadow: 0 0 0 3px rgba(100,255,218,0.08);
}
.form-control::placeholder { color: rgba(168,178,216,0.4); }

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .nav-links { display: none; flex-direction: column; position: absolute; top: var(--header-h); left: 0; right: 0; background: var(--color-cosmos); padding: 1rem; border-bottom: 1px solid rgba(100,255,218,0.1); }
    .nav-links.open { display: flex; }
    .nav-menu-btn { display: block; }
}