/**
 * Main CSS Styles
 * Base styles, global variables, common components
 */

/* === CSS Variables === */
:root {
    /* Primary Colors */
    --primary: #00f5ff;
    --primary-dim: rgba(0, 245, 255, 0.1);
    --primary-glow: rgba(0, 245, 255, 0.5);

    /* Secondary Colors */
    --secondary: #ff0055;
    --secondary-dim: rgba(255, 0, 85, 0.1);
    --secondary-glow: rgba(255, 0, 85, 0.5);

    /* Accent Colors */
    --accent: #00ff88;
    --warning: #ffd700;
    --error: #ff4444;

    /* Background Colors */
    --bg-primary: rgba(0, 10, 20, 0.85);
    --bg-secondary: rgba(0, 20, 40, 0.7);
    --bg-glass: rgba(0, 30, 60, 0.3);
    --bg-glass-hover: rgba(0, 40, 80, 0.4);
    --bg-glass-active: rgba(0, 50, 100, 0.5);

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a0b0c0;
    --text-muted: #607080;
    --text-light: #d0e0f0;

    /* Border Colors */
    --border: rgba(0, 245, 255, 0.2);
    --border-light: rgba(0, 245, 255, 0.1);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    --spacing-xxl: 8rem;

    /* Border Radius */
    --radius: 16px;
    --radius-sm: 8px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.2s ease;

    /* Fonts */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-mono: 'Fira Code', 'Consolas', monospace;
}

/* === Global Styles === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* === Custom Scrollbar === */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--secondary), var(--primary));
}

/* === Selection === */
::selection {
    background: var(--primary);
    color: #000;
}

::-moz-selection {
    background: var(--primary);
    color: #000;
}

/* === Links === */
a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

/* === Lists === */
ul, ol {
    list-style: none;
}

/* === Images === */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 2rem;
    background: linear-gradient(135deg, var(--primary), #00a8ea);
    border: none;
    border-radius: var(--radius-full);
    color: #000;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px var(--primary-glow);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary), #cc0044);
    color: #fff;
}

.btn-secondary:hover {
    box-shadow: 0 10px 30px var(--secondary-glow);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: #000;
    box-shadow: 0 0 20px var(--primary-glow);
}

.btn-sm {
    padding: 0.5rem 1.5rem;
    font-size: 0.9rem;
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* === Section Styles === */
section {
    padding: var(--spacing-xl) 2rem;
}

/* === Container === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* === Heading Styles === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -2px;
}

h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    letter-spacing: -1px;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* === Glass Cards === */
.card {
    padding: var(--spacing-md);
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}

.card:hover {
    border-color: var(--primary);
    box-shadow: 0 10px 40px rgba(0, 245, 255, 0.1);
    transform: translateY(-5px);
}

/* === Code Blocks === */
code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    padding: 0.2em 0.4em;
    background: rgba(0, 245, 255, 0.1);
    border-radius: 3px;
    color: var(--primary);
}

pre {
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    overflow-x: auto;
    margin: 1rem 0;
}

pre code {
    background: none;
    color: var(--text-primary);
}

/* === Tables === */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background: var(--bg-glass);
    color: var(--primary);
    font-weight: 600;
}

/* === Forms === */
input, textarea, select {
    width: 100%;
    padding: 1rem;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
}

/* === Badges === */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    background: var(--primary-dim);
    border: 1px solid var(--primary-glow);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--primary);
    font-weight: 500;
}

.badge-secondary {
    background: var(--secondary-dim);
    border-color: var(--secondary-glow);
    color: var(--secondary);
}

/* === Progress Bars === */
.progress {
    height: 8px;
    background: rgba(0, 245, 255, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: var(--radius-full);
    transition: width 1s ease;
}

/* === Animation Keyframes === */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

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

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* === Animations === */
.animate-fade-in {
    animation: fadeIn 0.8s ease forwards;
}

.animate-slide-in {
    animation: slideIn 0.6s ease forwards;
}

.animate-scale-in {
    animation: scaleIn 0.5s ease forwards;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* === Responsive === */
@media (max-width: 768px) {
    section {
        padding: var(--spacing-lg) 2rem;
    }

    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.5rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .card {
        padding: var(--spacing-md);
    }
}

/* === Dark Mode Support === */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: rgba(0, 10, 20, 0.9);
        --bg-secondary: rgba(0, 20, 40, 0.8);
    }
}

/* === Print Styles === */
@media print {
    body {
        background: #fff;
        color: #000;
    }

    a {
        color: #000;
        text-decoration: underline;
    }

    .no-print {
        display: none !important;
    }
}