/* Genel Stil Ayarları */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4CAF50;
    --primary-dark: #45a049;
    --secondary-color: #2196F3;
    --accent-color: #FF9800;
    --danger-color: #f44336;
    --success-color: #4CAF50;
    --warning-color: #ff9800;
    --bg-color: #f5f7fa;
    --card-bg: #ffffff;
    --text-color: #333333;
    --text-light: #666666;
    --border-color: #e0e0e0;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 16px rgba(0,0,0,0.15);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo a {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
}

.nav {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* Masaüstünde hamburger gizli */
.mobile-menu-toggle {
    display: none;
}

.nav-link {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.nav-link:hover {
    background-color: rgba(255,255,255,0.2);
}

.user-info {
    color: white;
    font-weight: 500;
}

/* Hamburger Menü Butonu - Masaüstünde gizli */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    gap: 5px;
    z-index: 1001;
    width: 30px;
    height: 30px;
    justify-content: center;
    align-items: center;
    position: relative;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: white;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Auth Pages */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.auth-container {
    width: 100%;
    max-width: 450px;
    padding: 1rem;
}

.auth-box {
    background: white;
    border-radius: 15px;
    padding: 2.5rem;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.auth-header p {
    color: var(--text-light);
}

.auth-form {
    margin-top: 1.5rem;
}

.auth-form .form-group label {
    text-align: left;
    justify-content: flex-start;
}

.auth-form .form-group label[for="beni_hatirla"],
.auth-form .form-group label:has(input[type="checkbox"]) {
    display: flex;
    align-items: center;
    cursor: pointer;
    text-align: left;
    justify-content: flex-start;
}

.auth-form .form-group label input[type="checkbox"] {
    margin-right: 0.5rem;
    width: auto;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-light);
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
    text-align: center;
}

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

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

.btn-secondary {
    background-color: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background-color: #5a6268;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-icon {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    text-decoration: none;
    transition: transform 0.2s;
}

.btn-icon:hover {
    transform: scale(1.2);
}

/* Forms */
.form-container {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: var(--text-light);
    font-size: 0.875rem;
}

.foto-input {
    padding: 0.5rem;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    cursor: pointer;
    transition: all 0.3s;
}

.foto-input:hover {
    border-color: var(--primary-color);
    background: rgba(76, 175, 80, 0.05);
}

.foto-input:focus {
    outline: none;
    border-color: var(--primary-color);
    border-style: solid;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.form-note {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Welcome Section */
.welcome-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.welcome-section h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.motivasyon-box {
    background: rgba(255,255,255,0.2);
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
}

.motivasyon-text {
    font-size: 1.1rem;
    font-style: italic;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.stat-icon {
    font-size: 3rem;
}

.stat-info h3 {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-color);
}

/* Quick Actions */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.action-btn {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-color);
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.action-btn:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    color: var(--primary-color);
}

.action-icon {
    font-size: 2.5rem;
}

/* Sections */
.section {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-header h2 {
    color: var(--text-color);
}

/* Yemek Listesi */
.yemek-listesi {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.yemek-item {
    background: var(--bg-color);
    padding: 1.5rem;
    border-radius: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s;
}

.yemek-item:hover {
    background: #e8f5e9;
    transform: translateX(5px);
}

.yemek-info {
    flex: 1;
}

.yemek-info h3 {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.yemek-meta {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.badge-kahvaltı {
    background-color: #fff3cd;
    color: #856404;
}

.badge-öğle {
    background-color: #d1ecf1;
    color: #0c5460;
}

.badge-akşam {
    background-color: #d4edda;
    color: #155724;
}

.badge-ara {
    background-color: #f8d7da;
    color: #721c24;
}

.kalori {
    color: var(--accent-color);
    font-weight: 600;
}

.yemek-not {
    margin-top: 0.5rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

.yemek-actions {
    display: flex;
    gap: 0.5rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-light);
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header h1 {
    color: var(--text-color);
}

/* Info Box */
.info-box {
    background: #e3f2fd;
    padding: 1.5rem;
    border-radius: 10px;
    margin-top: 2rem;
}

.info-box h3 {
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.kalori-rehber {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.5rem;
}

.kalori-item {
    padding: 0.5rem;
    background: white;
    border-radius: 5px;
    font-size: 0.9rem;
}

.info-display {
    background: var(--bg-color);
    padding: 1rem;
    border-radius: 8px;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent-color);
}

.bmi-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: 0.5rem 0;
}

.bmi-category {
    font-size: 1.2rem;
    color: var(--text-light);
}

/* Charts */
.chart-container {
    position: relative;
    height: 300px;
    margin-top: 1rem;
}

.ilerleme-chart {
    position: relative;
    height: 400px;
}

/* Filter Section */
.filter-section {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.filter-form {
    margin: 0;
}

/* Table */
.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.data-table th,
.data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background-color: var(--bg-color);
    font-weight: 600;
    color: var(--text-color);
}

.data-table tr:hover {
    background-color: var(--bg-color);
}

/* Footer */
.footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: auto;
}

.footer p {
    margin: 0.5rem 0;
}

/* Geçmiş Kayıtlar */
.gecmis-kayitlar {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.5rem;
}

.kayit-item {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s;
}

.kayit-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.kayit-item.active {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-hover);
}

.kayit-header {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.kayit-tarih {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.kayit-tarih strong {
    font-size: 1.1rem;
    color: var(--text-color);
}

.kayit-tarih small {
    color: var(--text-light);
    font-size: 0.85rem;
}

.kayit-ozet {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.kayit-detay {
    padding: 1.5rem;
    background: var(--bg-color);
    border-top: 2px solid var(--border-color);
    animation: slideDown 0.3s ease;
}

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

.detay-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.detay-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.detay-item strong {
    color: var(--text-light);
    font-size: 0.9rem;
}

.detay-item span {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
}

.detay-notlar {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.detay-notlar strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.detay-notlar p {
    color: var(--text-light);
    line-height: 1.8;
    white-space: pre-wrap;
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-wrap: nowrap;
        position: relative;
        align-items: center;
    }
    
    .logo {
        flex: 1;
        min-width: 0;
    }
    
    .logo a {
        font-size: 1.2rem;
    }
    
    /* Hamburger butonu mobilde görünür */
    .mobile-menu-toggle {
        display: flex;
        order: 2;
        margin-left: auto;
        margin-right: 0.5rem;
    }
    
    .user-info {
        order: 3;
        font-size: 0.8rem;
        margin-left: 0.5rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 80px;
        display: none; /* Mobilde kullanıcı adını gizle */
    }
    
    /* Mobilde nav başlangıçta gizli */
    .nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
        flex-direction: column;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease, opacity 0.3s ease, padding 0.3s ease;
        box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        width: 100%;
        z-index: 1000;
        opacity: 0;
        visibility: hidden;
        padding: 0;
        margin: 0;
    }
    
    /* Nav açıldığında */
    .nav.active {
        max-height: 600px;
        padding: 1rem 0;
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        display: block;
        padding: 1rem 1.5rem;
        border-bottom: 1px solid rgba(255,255,255,0.1);
        text-align: left;
        width: 100%;
        box-sizing: border-box;
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .nav-link:hover {
        background-color: rgba(255,255,255,0.15);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .quick-actions {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .yemek-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .kayit-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .kayit-ozet {
        width: 100%;
    }
    
    .detay-grid {
        grid-template-columns: 1fr;
    }
}

/* Su Takip Stilleri */
.su-ekle-container {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 2px solid var(--border-color);
}

.su-ilerleme {
    margin-bottom: 1.5rem;
}

.su-ilerleme-bilgi {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.su-ilerleme-bar {
    width: 100%;
    height: 20px;
    background: var(--bg-color);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.su-ilerleme-dolum {
    height: 100%;
    background: linear-gradient(90deg, #4CAF50 0%, #2196F3 100%);
    transition: width 0.3s ease;
    border-radius: 10px;
}

.sise-butonlari {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.sise-btn {
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, #2196F3 0%, #1976D2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    min-width: 80px;
}

.sise-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    background: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
}

.sise-btn:active {
    transform: translateY(0);
}

.su-miktar-goster {
    text-align: center;
    padding: 0.75rem;
    background: var(--bg-color);
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--text-color);
}

.su-miktar-goster strong {
    color: var(--primary-color);
    font-size: 1.1rem;
}

/* PWA Install Modal */
.pwa-install-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.pwa-install-content {
    background: var(--card-bg);
    border-radius: 12px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    animation: slideUp 0.3s;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.pwa-install-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 2px solid var(--border-color);
}

.pwa-install-header h2 {
    margin: 0;
    color: var(--text-color);
}

.pwa-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-light);
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s;
}

.pwa-close:hover {
    color: var(--text-color);
}

.pwa-install-body {
    padding: 1.5rem;
}

.pwa-install-body ol {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.pwa-install-body li {
    margin: 0.5rem 0;
    line-height: 1.6;
}

.pwa-install-footer {
    padding: 1.5rem;
    border-top: 2px solid var(--border-color);
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}