/* ===== UNIFIED STYLE SYSTEM ===== */
/* Click Master - Unified Design System */

:root {
    /* Primary Colors */
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --success-color: #4facfe;
    --warning-color: #f6d365;
    --danger-color: #fa709a;
    --dark-color: #2c3e50;
    --light-color: #f8f9fa;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-warning: linear-gradient(135deg, #f6d365 0%, #fda085 100%);
    --gradient-danger: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    
    /* Shadows */
    --shadow-light: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-medium: 0 4px 20px rgba(0,0,0,0.15);
    --shadow-heavy: 0 8px 30px rgba(0,0,0,0.2);
    --shadow-hover: 0 6px 25px rgba(0,0,0,0.25);
    
    /* Spacing & Sizing */
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --border-radius-xl: 30px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
    --transition-slow: all 0.5s ease;
    
    /* Typography */
    --font-family-primary: 'Cairo', 'Roboto', sans-serif;
    --font-family-secondary: 'Roboto', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ===== GLOBAL RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family-primary);
    line-height: 1.6;
    color: var(--dark-color);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    overflow-x: hidden;
    min-height: 100vh;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--dark-color);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
    color: #666;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--secondary-color);
    text-decoration: none;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: var(--font-size-base);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    min-height: 48px;
    gap: var(--spacing-xs);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-medium);
}

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

.btn-secondary {
    background: var(--gradient-secondary);
    color: white;
    box-shadow: var(--shadow-medium);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    color: white;
}

.btn-success {
    background: var(--gradient-success);
    color: white;
    box-shadow: var(--shadow-medium);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    color: white;
}

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

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

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
    border-radius: var(--border-radius-lg);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
    border-radius: var(--border-radius);
}

/* ===== CARDS ===== */
.card {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border: none;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.card-header {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-md);
    border: none;
}

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

.card-footer {
    background: var(--light-color);
    border-top: 1px solid #e9ecef;
    padding: var(--spacing-md);
}

/* ===== FORMS ===== */
.form-control {
    border: 2px solid #e9ecef;
    border-radius: var(--border-radius);
    padding: var(--spacing-sm);
    font-size: var(--font-size-base);
    transition: var(--transition);
    background: white;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    outline: none;
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: var(--spacing-xs);
}

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

/* ===== NAVIGATION ===== */
.navbar {
    background: var(--gradient-primary) !important;
    box-shadow: var(--shadow-medium);
    border: none;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    padding: var(--spacing-sm) 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: var(--font-size-2xl);
    color: white !important;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.navbar-nav .nav-link {
    color: rgba(255,255,255,0.9) !important;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md) !important;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.navbar-nav .nav-link:hover {
    color: white !important;
    background: rgba(255,255,255,0.1);
    transform: translateY(-1px);
}

/* ===== SIDEBAR ===== */
.sidebar {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    box-shadow: var(--shadow-heavy);
    border-right: 3px solid var(--primary-color);
    overflow-y: auto;
    min-height: 100vh;
}

.sidebar .nav-link {
    color: rgba(255,255,255,0.8);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    margin: 2px var(--spacing-sm);
    transition: var(--transition);
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    color: white;
    background: rgba(255,255,255,0.1);
    transform: translateX(5px);
}

/* ===== HERO SECTION ===== */
.hero-section {
    background: var(--gradient-primary);
    padding: var(--spacing-xl) 0;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

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

.hero-section h1 {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    animation: fadeInUp 1s ease-out;
}

.hero-section p {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-buttons {
    margin-top: var(--spacing-xl);
    animation: fadeInUp 1s ease-out 0.4s both;
}

/* ===== FEATURES SECTION ===== */
.features-section {
    padding: var(--spacing-xl) 0;
    background: var(--light-color);
}

.feature-card {
    background: white;
    padding: var(--spacing-xl) var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    height: 100%;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-medium);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    margin: 0 auto var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-medium);
}

.feature-icon i {
    font-size: 2rem;
    color: white;
}

/* ===== ABOUT SECTION ===== */
.about-section {
    padding: var(--spacing-xl) 0;
    background: white;
}

.about-image {
    text-align: center;
    padding: var(--spacing-xl);
}

.about-image > div {
    width: 300px;
    height: 300px;
    background: var(--gradient-primary);
    border-radius: 50%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-heavy);
    animation: float 6s ease-in-out infinite;
}

.about-image i {
    font-size: 5rem;
    color: white;
}

/* ===== CTA SECTION ===== */
.cta-section {
    padding: var(--spacing-xl) 0;
    background: var(--gradient-primary);
    color: white;
    text-align: center;
    position: relative;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    opacity: 0.3;
}

.cta-section .container {
    position: relative;
    z-index: 2;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

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

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

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .hero-section h1 {
        font-size: var(--font-size-3xl) !important;
    }
    
    .hero-section p {
        font-size: var(--font-size-lg) !important;
    }
    
    .stats-row {
        flex-direction: column !important;
        gap: var(--spacing-md) !important;
    }
    
    .about-image {
        margin-top: var(--spacing-lg);
    }
    
    .about-image > div {
        width: 200px !important;
        height: 200px !important;
    }
    
    .about-image i {
        font-size: 3rem !important;
    }
    
    .btn-lg {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-base);
    }
}

@media (max-width: 576px) {
    .hero-section {
        padding: var(--spacing-lg) 0;
    }
    
    .hero-section h1 {
        font-size: var(--font-size-2xl) !important;
    }
    
    .hero-section p {
        font-size: var(--font-size-base) !important;
    }
    
    .feature-card {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .about-image > div {
        width: 150px !important;
        height: 150px !important;
    }
    
    .about-image i {
        font-size: 2rem !important;
    }
}

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

.bg-gradient-primary {
    background: var(--gradient-primary) !important;
}

.bg-gradient-secondary {
    background: var(--gradient-secondary) !important;
}

.bg-gradient-success {
    background: var(--gradient-success) !important;
}

.shadow-light {
    box-shadow: var(--shadow-light) !important;
}

.shadow-medium {
    box-shadow: var(--shadow-medium) !important;
}

.shadow-heavy {
    box-shadow: var(--shadow-heavy) !important;
}

.rounded-lg {
    border-radius: var(--border-radius-lg) !important;
}

.rounded-xl {
    border-radius: var(--border-radius-xl) !important;
}

.transition {
    transition: var(--transition) !important;
}

.transition-fast {
    transition: var(--transition-fast) !important;
}

.transition-slow {
    transition: var(--transition-slow) !important;
}

/* ===== LOADING STATES ===== */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* ===== SCROLLBAR STYLING ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* ===== PRINT STYLES ===== */
@media print {
    .no-print {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
}