/* BERA - Modern Yeşil Tema - UI/UX Optimized */

:root {
    /* Ana Renkler */
    --primary-green: #2F4C39;
    --light-green: #4a6b5a;
    --dark-green: #1e3328;
    --accent-green: #5fa877;
    --white: #ffffff;
    --off-white: #f8f9fa;
    --light-bg: #f4f7f5;
    --text-dark: #2d3436;
    --text-light: #636e72;
    --text-muted: #95a5a6;
    
    /* Gölgeler */
    --shadow-sm: 0 2px 4px rgba(47, 76, 57, 0.08);
    --shadow-md: 0 4px 12px rgba(47, 76, 57, 0.12);
    --shadow-lg: 0 8px 24px rgba(47, 76, 57, 0.15);
    --shadow-xl: 0 12px 40px rgba(47, 76, 57, 0.2);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

/* Header - Modern & Sticky */
header {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--light-green) 100%);
    padding: 1rem 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(47, 76, 57, 0.95) 0%, rgba(74, 107, 90, 0.95) 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

header:hover::before {
    opacity: 1;
}

.navbar {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: transform var(--transition-normal);
    letter-spacing: 0.5px;
}

.logo:hover {
    transform: translateY(-2px);
}

.logo img {
    transition: transform var(--transition-normal);
}

.logo:hover img {
    transform: rotate(5deg) scale(1.1);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    align-items: center;
}

.nav-links li {
    position: relative;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-md);
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.nav-links a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.15);
    transition: left var(--transition-normal);
}

.nav-links a:hover::before {
    left: 0;
}

.nav-links a:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Buttons - Enhanced */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-normal);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    text-align: center;
    white-space: nowrap;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width var(--transition-slow), height var(--transition-slow);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--light-green) 100%);
    color: var(--white);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.btn-primary:active {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.6);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem;
    animation: fadeIn var(--transition-slow);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero Section - Enhanced */
.hero {
    background: linear-gradient(135deg, #e8f5ed 0%, var(--white) 100%);
    padding: 3.5rem 2.5rem;
    text-align: center;
    border-radius: var(--radius-xl);
    margin: 2rem 0;
    border: none;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(47, 76, 57, 0.03) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero h1 {
    font-size: 2.75rem;
    font-weight: 800;
    color: var(--primary-green);
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
    letter-spacing: -0.5px;
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-light);
    margin-bottom: 0;
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Cards - Modern Design */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border: 1px solid rgba(47, 76, 57, 0.08);
    position: relative;
    overflow: hidden;
}

.card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-green), var(--accent-green));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(47, 76, 57, 0.15);
}

.card:hover::after {
    transform: scaleX(1);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-green);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-content {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 1rem;
}

/* Grid Layout - Enhanced */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

/* Blog Cards - Enhanced */
.blog-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border: 1px solid rgba(47, 76, 57, 0.08);
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.blog-card-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    background: linear-gradient(135deg, #e8f5ed 0%, #d4e7dd 100%);
    transition: transform var(--transition-slow);
}

.blog-card:hover .blog-card-image {
    transform: scale(1.05);
}

.blog-card-content {
    padding: 1.75rem;
}

.blog-card-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--primary-green);
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.blog-card-excerpt {
    color: var(--text-light);
    margin-bottom: 1.25rem;
    line-height: 1.7;
}

.blog-card-meta {
    font-size: 0.875rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Forms - Modern & Accessible */
.form-group {
    margin-bottom: 1.75rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.6rem;
    color: var(--primary-green);
    font-weight: 600;
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid #e8f0eb;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-fast);
    background-color: var(--white);
}

.form-control:hover {
    border-color: #d0e3d8;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 4px rgba(47, 76, 57, 0.1);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

/* Alert Messages - Enhanced */
.alert {
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    animation: slideDown var(--transition-normal);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert::before {
    content: '';
    width: 4px;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.alert-success {
    background-color: #e8f5ed;
    color: var(--primary-green);
    border: 1px solid #c3e6cd;
    position: relative;
}

.alert-success::before {
    background-color: var(--primary-green);
}

.alert-error {
    background-color: #ffe5e5;
    color: #c92a2a;
    border: 1px solid #ffcccc;
    position: relative;
}

.alert-error::before {
    background-color: #c92a2a;
}

.alert-info {
    background-color: #e3f2fd;
    color: #1565c0;
    border: 1px solid #bbdefb;
    position: relative;
}

.alert-info::before {
    background-color: #1565c0;
}

/* Footer - Enhanced */
footer {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--dark-green) 100%);
    color: var(--white);
    text-align: center;
    padding: 2.5rem 2rem;
    margin-top: 5rem;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-green), transparent);
}

/* Video Player - Enhanced */
.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-lg);
    background: #000;
}

.video-container iframe,
.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-lg);
}

/* Tables - Modern Design */
table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    overflow: hidden;
    border-radius: var(--radius-md);
}

thead tr {
    background: linear-gradient(135deg, #e8f5ed 0%, #d4e7dd 100%);
}

th {
    padding: 1.25rem 1rem;
    text-align: left;
    font-weight: 700;
    color: var(--primary-green);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--primary-green);
}

td {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid #e8f0eb;
    transition: background-color var(--transition-fast);
}

tbody tr {
    transition: all var(--transition-fast);
}

tbody tr:hover {
    background-color: #f8fdfb;
}

tbody tr:last-child td {
    border-bottom: none;
}

/* Status Badges */
.badge {
    display: inline-block;
    padding: 0.4rem 0.9rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.badge-success {
    background: linear-gradient(135deg, #e8f5ed 0%, #d4e7dd 100%);
    color: var(--primary-green);
}

.badge-warning {
    background: linear-gradient(135deg, #fff3cd 0%, #ffe69c 100%);
    color: #856404;
}

.badge-info {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    color: #1565c0;
}

/* Loading States */
.loading {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid #e8f0eb;
    border-radius: 50%;
    border-top-color: var(--primary-green);
    animation: spin 0.8s linear infinite;
}

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

.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

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

/* Earthquake Cards - Enhanced */
.earthquake-card {
    background: var(--white);
    border-left: 4px solid var(--primary-green);
    padding: 1.75rem;
    margin-bottom: 1.25rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.earthquake-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.earthquake-magnitude {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--white);
    display: inline-block;
    padding: 0.6rem 1.2rem;
    background: linear-gradient(135deg, var(--primary-green), var(--light-green));
    border-radius: var(--radius-md);
    margin-right: 1rem;
    box-shadow: var(--shadow-sm);
}

.earthquake-info {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    margin-top: 1.25rem;
}

.earthquake-info span {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Responsive Design - Enhanced */
@media (max-width: 1024px) {
    .container {
        padding: 1.5rem;
    }
    
    .grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }
    
    .nav-links a {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .hero {
        padding: 2.5rem 1.5rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    table {
        font-size: 0.9rem;
    }
    
    th, td {
        padding: 0.875rem 0.75rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem;
    }
    
    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .card-title {
        font-size: 1.25rem;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }

/* Smooth Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--off-white);
}

::-webkit-scrollbar-thumb {
    background: var(--light-green);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-green);
}

/* Selection */
::selection {
    background: var(--primary-green);
    color: var(--white);
}

::-moz-selection {
    background: var(--primary-green);
    color: var(--white);
}