/**
 * Main Stylesheet
 * Kayal Kalmeen Kadai - Fish Stall Management System
 * Mobile-first responsive design with fish-themed colors
 */

/* CSS Variables for theming - can be changed dynamically */
:root {
    --primary-color: #008B8B;     /* Dark Cyan */
    --secondary-color: #20B2AA;   /* Light Sea Green */
    --accent-color: #00CED1;      /* Dark Turquoise */
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-bg: #f0f8ff;          /* Alice Blue */
    --dark-text: #2c3e50;
    --border-color: #b0e0e6;      /* Powder Blue */
    --shadow: rgba(0, 139, 139, 0.1);
    --font-size-base: 16px;
}

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

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    width: 100%;
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px 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 {
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
    color: white;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    font-size: 2rem;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.user-role {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
}

/* Theme Settings */
.theme-settings {
    position: relative;
}

.theme-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.3s;
}

.theme-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.theme-dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 0.5rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    padding: 1rem;
    min-width: 250px;
    z-index: 1001;
}

.theme-dropdown.active {
    display: block;
}

.theme-option {
    margin-bottom: 1rem;
}

.theme-option label {
    display: block;
    color: var(--dark-text);
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

.theme-option input[type="color"],
.theme-option input[type="range"] {
    width: 100%;
    cursor: pointer;
}

.theme-option input[type="range"] {
    height: 6px;
}

.theme-option .range-value {
    display: inline-block;
    margin-left: 0.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

/* Navigation */
.nav {
    background: white;
    box-shadow: 0 2px 5px var(--shadow);
    margin-bottom: 1.5rem;
}

.nav-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    padding: 0;
    margin: 0;
}

.nav-list li {
    position: relative;
}

.nav-list a {
    display: block;
    padding: 1rem 1.25rem;
    color: var(--dark-text);
    text-decoration: none;
    transition: all 0.3s;
    font-weight: 500;
}

.nav-list a:hover,
.nav-list a.active {
    background: var(--primary-color);
    color: white;
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    font-size: 1rem;
    width: 100%;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 1.5rem 0;
}

/* Page Title */
.page-title {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--secondary-color);
    font-size: 1.8rem;
}

/* Cards */
.card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px var(--shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card-title {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

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

.stat-card {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px var(--shadow);
    transition: transform 0.3s;
}

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

.stat-value {
    font-size: 2.5rem;
    font-weight: bold;
    margin: 0.5rem 0;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-text);
}

.form-group .required::after {
    content: " *";
    color: var(--danger-color);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 139, 139, 0.1);
}

.form-control:disabled {
    background-color: #e9ecef;
    cursor: not-allowed;
}

select.form-control {
    cursor: pointer;
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: all 0.3s;
    line-height: 1.5;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px var(--shadow);
}

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

.btn-secondary:hover:not(:disabled) {
    background: #5a6268;
}

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

.btn-success:hover:not(:disabled) {
    background: #218838;
}

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

.btn-danger:hover:not(:disabled) {
    background: #c82333;
}

.btn-warning {
    background: var(--warning-color);
    color: #212529;
}

.btn-warning:hover:not(:disabled) {
    background: #e0a800;
}

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

.btn-info:hover:not(:disabled) {
    background: #138496;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-group {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
}

thead {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

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

th {
    font-weight: 600;
    white-space: nowrap;
}

tbody tr:hover {
    background: rgba(0, 139, 139, 0.05);
}

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

td.actions {
    white-space: nowrap;
}

td.text-right {
    text-align: right;
}

td.text-center {
    text-align: center;
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 5px;
    margin-bottom: 1.5rem;
    border-left: 4px solid;
}

.alert-success {
    background: #d4edda;
    border-color: var(--success-color);
    color: #155724;
}

.alert-danger {
    background: #f8d7da;
    border-color: var(--danger-color);
    color: #721c24;
}

.alert-warning {
    background: #fff3cd;
    border-color: var(--warning-color);
    color: #856404;
}

.alert-info {
    background: #d1ecf1;
    border-color: var(--info-color);
    color: #0c5460;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.35rem 0.65rem;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 20px;
    text-transform: uppercase;
}

.badge-success {
    background: var(--success-color);
    color: white;
}

.badge-danger {
    background: var(--danger-color);
    color: white;
}

.badge-warning {
    background: var(--warning-color);
    color: #212529;
}

.badge-info {
    background: var(--info-color);
    color: white;
}

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

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.page-link {
    padding: 0.5rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s;
    font-weight: 500;
}

.page-link:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.page-link.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.page-dots {
    padding: 0.5rem;
    color: var(--dark-text);
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 1rem;
}

.login-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    padding: 2.5rem;
    max-width: 450px;
    width: 100%;
}

.login-logo {
    text-align: center;
    margin-bottom: 2rem;
}

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

.login-logo p {
    color: #6c757d;
    font-size: 0.9rem;
}

/* Footer */
.footer {
    background: var(--dark-text);
    color: white;
    padding: 1.5rem 0;
    margin-top: auto;
}

.footer-content {
    text-align: center;
}

.footer p {
    margin: 0.25rem 0;
    font-size: 0.9rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: #6c757d;
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--border-color);
}

.empty-state h3 {
    margin-bottom: 0.5rem;
    color: var(--dark-text);
}

/* Loading Spinner */
.loading {
    display: inline-block;
    width: 30px;
    height: 30px;
    border: 3px solid rgba(0, 139, 139, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s linear infinite;
}

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

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }
.text-warning { color: var(--warning-color); }
.text-info { color: var(--info-color); }
.text-primary { color: var(--primary-color); }

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        align-items: stretch;
    }
    
    .logo {
        justify-content: center;
    }
    
    .header-right {
        flex-direction: column;
        align-items: stretch;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-list {
        flex-direction: column;
        display: none;
    }
    
    .nav-list.active {
        display: flex;
    }
    
    .nav-list a {
        border-bottom: 1px solid var(--border-color);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    table {
        font-size: 0.875rem;
    }
    
    th, td {
        padding: 0.75rem 0.5rem;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .page-title {
        font-size: 1.5rem;
    }
    
    .theme-dropdown {
        right: auto;
        left: 0;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: 1.5rem;
    }
    
    .login-logo h1 {
        font-size: 1.5rem;
    }
    
    .stat-value {
        font-size: 2rem;
    }
    
    th, td {
        font-size: 0.8rem;
        padding: 0.5rem 0.25rem;
    }
}

/* Print Styles */
@media print {
    .header, .nav, .footer, .btn, .theme-settings {
        display: none !important;
    }
    
    .main-content {
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}