/* ========================================
   GlowRide Design System
   ======================================== */

/* CSS Variables for Theme */
:root {
    /* Colors - Light Mode */
    --color-primary: #FF006B;
    --color-primary-dark: #CC0056;
    --color-primary-light: #FF3385;

    --color-secondary: #1a1a1a;
    --color-accent: #FFD700;

    --color-bg: #ffffff;
    --color-bg-alt: #f8f8f8;
    --color-surface: #ffffff;

    --color-text: #1a1a1a;
    --color-text-secondary: #666666;
    --color-text-muted: #999999;

    --color-border: #e0e0e0;

    /* Glow Effect */
    --glow-color: rgba(255, 0, 107, 0.6);
    --glow-size: 20px;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;

    /* Typography */
    --font-primary: 'Montserrat', sans-serif;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3.5rem;

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

/* Dark Mode */
[data-theme="dark"] {
    --color-bg: #0a0a0a;
    --color-bg-alt: #1a1a1a;
    --color-surface: #1f1f1f;

    --color-text: #ffffff;
    --color-text-secondary: #b3b3b3;
    --color-text-muted: #808080;

    --color-border: #333333;

    --glow-color: rgba(255, 0, 107, 0.8);
}

/* ========================================
   Reset & Base Styles
   ======================================== */

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

html {
    scroll-behavior: smooth;
    /* Mobile optimization */
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: background-color var(--transition-base), color var(--transition-base);
    /* Mobile optimization */
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
}

/* ========================================
   Typography
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-sm);
}

.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }

/* ========================================
   Layout Components
   ======================================== */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-wide {
    max-width: 1400px;
}

.section {
    padding: var(--spacing-xxl) 0;
}

.section-header {
    margin-bottom: var(--spacing-xl);
}

.section-header.center {
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--spacing-xl);
}

.section-label {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
}

/* Grid System */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

/* Split Content */
.split-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.split-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

/* ========================================
   Button Components
   ======================================== */

.btn {
    display: inline-block;
    padding: 0.875rem 1.5rem;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    text-align: center;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
}

/* Tablet and up: larger padding */
@media (min-width: 640px) {
    .btn {
        padding: 0.875rem 2rem;
    }
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-text {
    background: transparent;
    color: var(--color-primary);
    padding: 0.5rem 0;
    font-weight: var(--font-weight-semibold);
}

.btn-text:hover {
    color: var(--color-primary-dark);
}

.btn-lg {
    padding: 1.125rem 2.5rem;
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: 0.625rem 1.5rem;
    font-size: var(--font-size-sm);
}

/* Glow Effect for Buttons */
.btn-glow {
    box-shadow: 0 0 var(--glow-size) var(--glow-color);
    animation: pulse-glow 2s ease-in-out infinite;
}

.btn-glow:hover {
    box-shadow: 0 0 calc(var(--glow-size) * 1.5) var(--glow-color);
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 var(--glow-size) var(--glow-color);
    }
    50% {
        box-shadow: 0 0 calc(var(--glow-size) * 1.5) var(--glow-color);
    }
}

/* ========================================
   Card Components
   ======================================== */

.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

/* Feature Card */
.feature-card {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-lg);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: var(--color-bg-alt);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--color-text-secondary);
    margin: 0;
}

/* ========================================
   Form Elements
   ======================================== */

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: var(--font-size-base);
    font-family: inherit;
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 0, 107, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* ========================================
   Utility Classes
   ======================================== */

.glow-text {
    text-shadow: 0 0 20px var(--glow-color);
}

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-text-secondary); }

.bg-primary { background-color: var(--color-primary); }
.bg-surface { background-color: var(--color-surface); }
.bg-alt { background-color: var(--color-bg-alt); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

/* ========================================
   Responsive Design - Mobile First
   ======================================== */

/* Base: Mobile Styles (default) */
:root {
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
    --font-size-2xl: 1.5rem;
}

.grid-2,
.grid-3,
.grid-4 {
    grid-template-columns: 1fr;
}

.split-content {
    grid-template-columns: 1fr;
}

.container {
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
}

/* Tablet: 640px and up */
@media (min-width: 640px) {
    .container {
        padding: 0 var(--spacing-lg);
    }

    .grid-2 {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .grid-3 {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
}

/* Desktop: 1024px and up */
@media (min-width: 1024px) {
    :root {
        --font-size-4xl: 3.5rem;
        --font-size-3xl: 2.5rem;
        --font-size-2xl: 2rem;
    }

    .split-content {
        grid-template-columns: 1fr 1fr;
    }

    .section {
        padding: var(--spacing-xxl) 0;
    }
}

/* Large Desktop: 1280px and up */
@media (min-width: 1280px) {
    .grid-4 {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}