/* ========================================= */
/* LANDING PAGE CSS */
/* ========================================= */

/* ==================== RESPONSIVE BASE ==================== */
* {
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

/* Responsive Font Scaling */
@media screen and (max-width: 768px) {
    html {
        font-size: 14px;
    }
}

@media screen and (max-width: 480px) {
    html {
        font-size: 12px;
    }
}

/* ==================== CSS VARIABLES ==================== */
:root {
    --primary-blue: #2563eb;
    --primary-blue-dark: #1d4ed8;
    --accent-orange: #f59e0b;
    --success-green: #10b981;
    --warning-yellow: #f59e0b;
    --danger-red: #ef4444;
    
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-accent: #f1f5f9;
    
    --light-gray: #f8fafc;
    --medium-gray: #e2e8f0;
    --dark-gray: #374151;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ==================== DARK MODE VARIABLES ==================== */
[data-theme="dark"] {
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-muted: #9ca3af;
    
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --bg-accent: #374151;
    
    --light-gray: #1f2937;
    --medium-gray: #374151;
    --dark-gray: #f9fafb;
}

/* Global Styles */
* {
    box-sizing: border-box;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

html, body {
    max-width: 100vw;
    overflow-x: hidden;
    font-size: 16px;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--light-gray);
    color: var(--dark-gray);
    line-height: 1.5;
    overflow-x: hidden;
}

/* Navigation Styles - Responsive */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--medium-gray);
    padding: 1rem 0;
    transition: all var(--transition-normal);
    z-index: 1030;
}

/* Responsive Navigation */
@media screen and (max-width: 768px) {
    .navbar {
        padding: 0.75rem 0;
    }
    
    .user-controls {
        gap: 12px;
    }
}

@media screen and (max-width: 480px) {
    .navbar {
        padding: 0.5rem 0;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .user-controls {
        gap: 8px;
    }
}

[data-theme="dark"] .navbar {
    background: rgba(17, 24, 39, 0.95);
    border-bottom-color: var(--medium-gray);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue) !important;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.navbar-brand:hover {
    color: var(--primary-blue-dark) !important;
    transform: scale(1.05);
}

.user-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

.theme-toggle {
    position: relative;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background: var(--light-gray);
    color: var(--dark-gray);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.theme-toggle:hover {
    background: var(--primary-blue);
    color: white;
    transform: rotate(180deg);
}

/* ==================== CONTAINER SYSTEM ==================== */
.container-fluid {
    width: 100%;
    max-width: 100vw;
    padding: 0 15px;
    margin: 0 auto;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    overflow-x: hidden;
}

/* Home Page Styles */
.home-container {
    min-height: 100vh;
}

.hero-section {
    min-height: 80vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
    padding: 80px 0;
}

.hero-content {
    z-index: 2;
    position: relative;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-description {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

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

.stat-number {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    display: block;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    margin-top: var(--spacing-lg);
}

.hero-image {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-card {
    position: absolute;
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    font-size: 0.875rem;
    animation: float 3s ease-in-out infinite;
    white-space: nowrap;
}

.floating-card:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-card:nth-child(2) {
    top: 50%;
    right: 20%;
    animation-delay: 1s;
}

.floating-card:nth-child(3) {
    bottom: 20%;
    left: 20%;
    animation-delay: 2s;
}

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

/* Features Section */
.features-section {
    padding: var(--spacing-2xl) 0;
    background: white;
}

[data-theme="dark"] .features-section {
    background: var(--bg-secondary);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
}

.feature-card {
    text-align: center;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    height: 100%;
    background: var(--bg-primary);
    border: 1px solid var(--medium-gray);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-normal);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.feature-card h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0;
}

/* Button Styles */
.btn {
    font-weight: 600;
    border-radius: var(--radius-md);
    padding: 12px 24px;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
}

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

.btn-primary:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-outline-primary:hover {
    background: var(--primary-blue);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.125rem;
}

/* Responsive Design */
@media (max-width: 575.98px) {
    .container-fluid { padding: 0 10px; }
    .hero-section { padding: 40px 0; }
    .hero-title { font-size: 2rem; }
    .hero-description { font-size: 1rem; }
    .btn { padding: 10px 20px; font-size: 14px; }
    .navbar-brand { font-size: 1.1rem; }
    
    .hero-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .floating-card {
        position: static;
        margin: var(--spacing-sm) 0;
        transform: none !important;
        animation: none !important;
    }
    
    .hero-image {
        height: auto;
        margin-top: var(--spacing-xl);
    }
}

@media (min-width: 576px) {
    .container { max-width: 540px; }
}

@media (min-width: 768px) {
    .container { max-width: 720px; }
    .hero-title { font-size: 3rem; }
    .hero-description { font-size: 1.25rem; }
}

@media (min-width: 992px) {
    .container { max-width: 960px; }
}

@media (min-width: 1200px) {
    .container { max-width: 1140px; }
}

/* Form Controls Mobile Optimization */
@media (max-width: 767.98px) {
    .form-control, .form-select {
        font-size: 16px; /* Prevents zoom on iOS */
        padding: 12px 16px;
        min-height: 44px;
    }
}

/* iOS Safari Specific */
@supports (-webkit-touch-callout: none) {
    .btn, .form-control {
        -webkit-appearance: none;
        border-radius: 8px;
    }
    
    html {
        -webkit-text-size-adjust: 100%;
    }
}

/* Touch-friendly interactions */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 44px;
        min-width: 44px;
        padding: 12px 24px;
    }
    
    .navbar-toggler, .theme-toggle {
        min-height: 44px;
        min-width: 44px;
    }
}