/* ========================================
   GLOBAL STYLES — Shared across all pages
   ======================================== */

:root {
    /* Backgrounds */
    --bg-primary: #06060a;
    --bg-secondary: #0c0c14;
    --bg-card: rgba(255, 255, 255, 0.035);
    --bg-card-hover: rgba(255, 255, 255, 0.065);
    --bg-input: rgba(255, 255, 255, 0.05);

    /* Text */
    --text-primary: #f0f0f5;
    --text-secondary: #8888a0;
    --text-muted: #555570;

    /* Accents */
    --accent-cyan: #00d4ff;
    --accent-purple: #7b2fff;
    --accent-green: #00e87b;
    --accent-violet: #a855f7;
    --accent-orange: #f97316;
    --accent-red: #ef4444;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #00d4ff, #7b2fff);
    --gradient-green: linear-gradient(135deg, #00e87b, #00b4d8);
    --gradient-purple: linear-gradient(135deg, #a855f7, #6366f1);
    --gradient-orange: linear-gradient(135deg, #f97316, #ef4444);

    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-card: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(0, 212, 255, 0.3);

    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* Transitions */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.08) transparent;
}

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

::selection {
    background: rgba(0, 212, 255, 0.3);
    color: #fff;
}

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }

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

/* Ambient Background */
.ambient-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.35;
}

.glow-orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.12), transparent 70%);
    top: -150px;
    left: -100px;
    animation: floatOrb 20s ease-in-out infinite;
}

.glow-orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(123, 47, 255, 0.1), transparent 70%);
    bottom: -100px;
    right: -100px;
    animation: floatOrb 25s ease-in-out infinite reverse;
}

.glow-orb-3 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(0, 232, 123, 0.08), transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: floatOrb 30s ease-in-out infinite;
}

@keyframes floatOrb {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -40px) scale(1.08); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* Entry Animations */
.animate-in {
    opacity: 0;
    transform: translateY(20px);
    animation: animateIn 0.6s var(--ease) forwards;
    animation-delay: calc(var(--delay, 0) * 0.1s);
}

@keyframes animateIn {
    to { opacity: 1; transform: translateY(0); }
}

/* Gradient Text */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Back Button (shared on sub-pages) */
.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-full);
    transition: all 0.3s var(--ease);
    cursor: pointer;
}

.back-btn:hover {
    color: var(--text-primary);
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateX(-4px);
}

/* Container */
.page-container {
    position: relative;
    z-index: 1;
    max-width: 640px;
    margin: 0 auto;
    padding: 40px 20px;
    min-height: 100vh;
}