/**
 * AYBÜ Sıfır Atık Platformu - Ana CSS Dosyası
 * Responsive tasarım ve özel stiller
 */

/* ========== ROOT VARIABLES ========== */
:root {
    --primary-color: #28a745;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --info-color: #17a2b8;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --white-color: #ffffff;
    
    /* Zero Waste Theme Colors */
    --zero-waste-green: #2d5016;
    --zero-waste-light-green: #4a7c59;
    --zero-waste-accent: #8fbc8f;
    --zero-waste-earth: #8b4513;
    
    /* Typography */
    --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 1rem;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.15);
    
    /* Border Radius */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.375rem;
    --border-radius-lg: 0.5rem;
    --border-radius-xl: 0.75rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* ========== GLOBAL STYLES ========== */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--white-color);
    overflow-x: hidden;
}

/* ========== UTILITY CLASSES ========== */
.text-zero-waste-green { color: var(--zero-waste-green) !important; }
.text-zero-waste-light-green { color: var(--zero-waste-light-green) !important; }
.bg-zero-waste-green { background-color: var(--zero-waste-green) !important; }
.bg-zero-waste-light-green { background-color: var(--zero-waste-light-green) !important; }

.text-purple { color: #6f42c1 !important; }
.btn-outline-purple { 
    color: #6f42c1; 
    border-color: #6f42c1; 
}
.btn-outline-purple:hover { 
    background-color: #6f42c1; 
    color: white; 
}

.hover-text-success:hover { color: var(--success-color) !important; }
.transition-all { transition: all var(--transition-normal); }

.min-vh-50 { min-height: 50vh; }
.min-vh-75 { min-height: 75vh; }

.shadow-hover { transition: box-shadow var(--transition-normal); }
.shadow-hover:hover { box-shadow: var(--shadow-lg); }

.border-3 { border-width: 3px !important; }

.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 1000;
}

.skip-link:focus {
    top: 6px;
}

/* ========== HEADER STYLES ========== */
.header {
    position: sticky;
    top: 0;
    z-index: 1020;
    background: white;
    box-shadow: var(--shadow-sm);
}

.top-bar {
    font-size: 0.875rem;
}

.navbar-brand {
    font-weight: var(--font-weight-bold);
}

.navbar-nav .nav-link {
    font-weight: var(--font-weight-medium);
    padding: 0.75rem 1rem !important;
    transition: color var(--transition-fast);
    border-radius: var(--border-radius-md);
    margin: 0 0.25rem;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--primary-color) !important;
    background-color: rgba(40, 167, 69, 0.1);
}

.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-md);
    border-radius: var(--border-radius-lg);
    padding: 0.5rem;
}

.dropdown-item {
    border-radius: var(--border-radius-sm);
    padding: 0.5rem 1rem;
    margin-bottom: 0.25rem;
}

.dropdown-item:hover {
    background-color: rgba(40, 167, 69, 0.1);
    color: var(--primary-color);
}

/* ========== HERO SECTIONS ========== */
.hero-section {
    position: relative;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--zero-waste-green) 100%);
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/pattern-overlay.png') repeat;
    opacity: 0.1;
    z-index: 1;
}

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

.hero-buttons .btn {
    padding: 0.75rem 2rem;
    font-weight: var(--font-weight-semibold);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-normal);
}

.hero-buttons .btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.bg-gradient-success {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--zero-waste-light-green) 100%) !important;
}

/* ========== CARD STYLES ========== */
.card {
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stat-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border-left: 4px solid var(--primary-color);
}

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

.stat-icon {
    margin-bottom: var(--spacing-md);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    color: var(--secondary-color);
    font-weight: var(--font-weight-medium);
    margin-bottom: 0;
}

/* ========== FEATURE CARDS ========== */
.feature-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border: 1px solid rgba(0,0,0,0.05);
}

.feature-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.feature-content h5 {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    color: var(--dark-color);
}

/* ========== TIMELINE ========== */
.timeline {
    position: relative;
    padding: var(--spacing-xl) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 50%;
    margin-bottom: var(--spacing-xl);
}

.timeline-left {
    left: 0;
    padding-right: var(--spacing-xl);
    text-align: right;
}

.timeline-right {
    left: 50%;
    padding-left: var(--spacing-xl);
    text-align: left;
}

.timeline-content {
    position: relative;
}

.timeline-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.timeline-card:hover {
    box-shadow: var(--shadow-md);
}

.timeline-year {
    margin-bottom: var(--spacing-sm);
}

.timeline-icon {
    position: absolute;
    top: 50%;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    transform: translateY(-50%);
    box-shadow: var(--shadow-md);
}

.timeline-left .timeline-icon {
    right: -65px;
}

.timeline-right .timeline-icon {
    left: -65px;
}

/* ========== PAGE HEADERS ========== */
.page-header {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--zero-waste-green) 100%);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/pattern-overlay.png') repeat;
    opacity: 0.1;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "›";
    color: rgba(255,255,255,0.7);
}

/* ========== SECTIONS ========== */
.section-title {
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 60px;
    height: 3px;
    background: var(--primary-color);
    transform: translateX(-50%);
}

.text-left .section-title::after {
    left: 0;
    transform: none;
}

/* ========== FORMS ========== */
.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
}

.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
}

.btn-success {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    font-weight: var(--font-weight-medium);
    padding: 0.75rem 1.5rem;
    transition: all var(--transition-normal);
}

.btn-success:hover {
    background-color: var(--zero-waste-green);
    border-color: var(--zero-waste-green);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1.125rem;
}

.input-group-text {
    background-color: var(--light-color);
    border-color: #ced4da;
}

/* ========== NOTIFICATIONS ========== */
.notifications-container {
    position: fixed;
    top: 80px;
    right: var(--spacing-md);
    z-index: 1050;
    max-width: 400px;
}

.alert {
    border-radius: var(--border-radius-lg);
    border: none;
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-sm);
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
}

/* ========== LOADING ========== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
}

/* ========== FOOTER ========== */
.footer {
    background-color: var(--dark-color);
    color: #ffffff;
    margin-top: auto;
}

.footer h5, .footer h6 {
    color: white;
}

.footer a {
    color: #ffffff;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer a:hover {
    color: var(--primary-color);
}

.footer p, .footer span, .footer div {
    color: #ffffff !important;
}

.social-links .btn {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-normal);
}

.social-links .btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* ========== BACK TO TOP ========== */
#btn-back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: none;
    z-index: 1000;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

#btn-back-to-top:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ========== COOKIE CONSENT ========== */
.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    padding: var(--spacing-md);
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 1040;
    border-top: 3px solid var(--primary-color);
}

/* ========== LOGIN/REGISTER PAGES ========== */
.login-page,
.register-page {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    min-height: 100vh;
}

.login-form-container,
.register-form-container {
    background: white;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xxl);
}

.login-hero,
.register-hero {
    position: relative;
    overflow: hidden;
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 1;
}

.floating-element {
    position: absolute;
    font-size: 2rem;
    opacity: 0.3;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg); 
    }
    50% { 
        transform: translateY(-20px) rotate(5deg); 
    }
}

/* ========== MAP STYLES ========== */
.map-container {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.leaflet-container {
    border-radius: var(--border-radius-lg);
}

.waste-bin-marker {
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: var(--font-weight-bold);
    font-size: 0.875rem;
}

.bin-popup {
    max-width: 300px;
}

.bin-status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
    margin-right: var(--spacing-sm);
}

.status-empty { background-color: var(--success-color); }
.status-half { background-color: var(--warning-color); }
.status-full { background-color: var(--danger-color); }
.status-maintenance { background-color: var(--secondary-color); }

/* ========== DASHBOARD STYLES ========== */
.dashboard-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border-left: 4px solid transparent;
}

.dashboard-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.dashboard-card.card-primary {
    border-left-color: var(--primary-color);
}

.dashboard-card.card-info {
    border-left-color: var(--info-color);
}

.dashboard-card.card-warning {
    border-left-color: var(--warning-color);
}

.dashboard-card.card-danger {
    border-left-color: var(--danger-color);
}

.dashboard-stat {
    text-align: center;
    padding: var(--spacing-lg);
}

.dashboard-stat-number {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

/* ========== RESPONSIVE DESIGN ========== */

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

/* Medium screens */
@media (max-width: 991.98px) {
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 60px !important;
        padding-right: 0 !important;
        text-align: left !important;
    }
    
    .timeline-icon {
        left: 5px !important;
    }
    
    .hero-section {
        padding: var(--spacing-xl) 0;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .notifications-container {
        left: var(--spacing-sm);
        right: var(--spacing-sm);
        max-width: none;
    }
}

/* Small screens */
@media (max-width: 767.98px) {
    .hero-section {
        padding: var(--spacing-lg) 0;
    }
    
    .hero-section .display-4 {
        font-size: 2rem;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
    
    .stat-card {
        margin-bottom: var(--spacing-lg);
    }
    
    .feature-card {
        margin-bottom: var(--spacing-lg);
    }
    
    .page-header {
        padding: var(--spacing-lg) 0;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .timeline-item {
        padding-left: 40px !important;
    }
    
    .timeline-icon {
        width: 30px;
        height: 30px;
        font-size: 1rem;
    }
    
    .login-form-container,
    .register-form-container {
        padding: var(--spacing-lg);
        border-radius: var(--border-radius-lg);
    }
}

/* Extra small screens */
@media (max-width: 575.98px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-section .lead {
        font-size: 1rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    .navbar-brand img {
        height: 35px;
    }
    
    .top-bar {
        display: none !important;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .feature-icon {
        font-size: 2rem;
    }
}

/* Print styles */
@media print {
    .header,
    .footer,
    .floating-elements,
    #btn-back-to-top,
    .cookie-consent,
    .notifications-container {
        display: none !important;
    }
    
    .page-header {
        background: none !important;
        color: black !important;
        padding: var(--spacing-md) 0;
    }
    
    .card,
    .stat-card,
    .feature-card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
        break-inside: avoid;
    }
}

/* Dark mode support (future feature) */
@media (prefers-color-scheme: dark) {
    /* Dark mode styles would go here */
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .card,
    .stat-card,
    .feature-card {
        border: 2px solid var(--dark-color);
    }
    
    .btn {
        border-width: 2px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .floating-element {
        animation: none;
    }
}

/* Focus styles for accessibility */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

button:focus,
.btn:focus {
    box-shadow: 0 0 0 0.25rem rgba(40, 167, 69, 0.25);
}

/* Screen reader only content */
.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.sr-only-focusable:focus {
    position: static !important;
    width: auto !important;
    height: auto !important;
    padding: inherit !important;
    margin: inherit !important;
    overflow: visible !important;
    clip: auto !important;
    white-space: normal !important;
}