/**
 * Swimming Club Membership System - Main Stylesheet
 * @version 1.0.0
 */

/* ===== CSS VARIABLES ===== */
:root {
    /* Primary Colors */
    --primary: #0066cc;
    --primary-dark: #004999;
    --primary-light: #3385d6;
    --secondary: #17a2b8;
    --secondary-dark: #138496;
    
    /* Status Colors */
    --success: #28a745;
    --success-light: #d4edda;
    --danger: #dc3545;
    --danger-light: #f8d7da;
    --warning: #ffc107;
    --warning-light: #fff3cd;
    --info: #17a2b8;
    --info-light: #d1ecf1;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --black: #000000;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --line-height-base: 1.5;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: var(--line-height-base);
    color: var(--gray-900);
    background-color: var(--gray-100);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
}

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

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

strong, b {
    font-weight: 600;
}

/* ===== LAYOUT ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.page-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md) 0;
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-md);
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(var(--spacing-md) * -0.5);
}

.col {
    flex: 1;
    padding: 0 calc(var(--spacing-md) * 0.5);
}

/* ===== HEADER & NAVIGATION - 2-Row Design ===== */
.main-header {
    background: linear-gradient(135deg, #0066cc 0%, #004999 100%);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

/* Top Row - Logo and User Info */
.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
    transition: transform var(--transition-fast);
}

.logo-link:hover {
    transform: scale(1.05);
}

.logo-image {
    border-radius: var(--radius-md);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.logo-text {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--white);
    white-space: nowrap;
    letter-spacing: -0.5px;
}

/* Bottom Row - Navigation Bar */
.header-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 var(--spacing-lg);
    min-height: 54px;
    max-width: 1600px;
    margin: 0 auto;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-sm);
    transition: transform var(--transition-fast);
}

.mobile-menu-toggle:hover {
    transform: scale(1.1);
}

/* Navigation */
.main-nav {
    display: flex;
    align-items: center;
    gap: 0;
    justify-content: center;
}

/* Nav Dropdown Container */
.nav-dropdown {
    position: relative;
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 14px;
    border-radius: var(--radius-md);
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
    white-space: nowrap;
}

.nav-item i {
    font-size: 1.1rem;
    opacity: 0.9;
}

.dropdown-icon {
    font-size: 0.7rem;
    margin-left: 4px;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    transform: translateY(-2px);
}

.nav-item.active {
    background: rgba(255, 255, 255, 0.25);
    color: var(--white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.nav-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 3px;
    background: var(--white);
    border-radius: 3px 3px 0 0;
}

/* Nav Dropdown Menu */
.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    min-width: 200px;
    margin-top: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    z-index: 1000;
}

.nav-dropdown-menu .dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--gray-700);
    text-decoration: none;
    transition: all var(--transition-fast);
    font-size: 0.9rem;
    border-bottom: 1px solid var(--gray-200);
}

.nav-dropdown-menu .dropdown-item:last-child {
    border-bottom: none;
}

.nav-dropdown-menu .dropdown-item:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.nav-dropdown-menu .dropdown-item i {
    width: 18px;
    text-align: center;
    opacity: 0.7;
    font-size: 0.9rem;
}

/* User Dropdown (now in header-nav) */
.user-dropdown {
    position: relative;
    margin-left: var(--spacing-xs);
}

.user-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    padding: 8px 12px;
    color: var(--white);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.user-dropdown-toggle:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

.user-avatar {
    font-size: 1.8rem;
    display: flex;
    align-items: center;
}

.user-info-compact {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.3;
}

.user-name-compact {
    font-weight: 600;
    font-size: 0.9rem;
}

.user-role-compact {
    font-size: 0.75rem;
    opacity: 0.85;
}

.dropdown-arrow {
    font-size: 0.75rem;
    transition: transform var(--transition-fast);
    margin-left: 4px;
}

/* User Dropdown Menu */
.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    z-index: 1001;
}

.user-dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
}

.user-name-full {
    font-weight: 600;
    color: var(--gray-900);
    font-size: 0.95rem;
}

.user-role-full {
    font-size: 0.8rem;
    color: var(--gray-600);
    margin-top: 2px;
}

.dropdown-divider {
    height: 1px;
    background: var(--gray-200);
    margin: 4px 0;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px var(--spacing-md);
    color: var(--gray-700);
    text-decoration: none;
    transition: all var(--transition-fast);
    font-size: 0.9rem;
}

.dropdown-item:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.dropdown-item i {
    width: 18px;
    text-align: center;
    opacity: 0.7;
}

.dropdown-item.logout-item {
    color: var(--danger);
}

.dropdown-item.logout-item:hover {
    background: var(--danger-light);
    color: var(--danger);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-sm);
    color: var(--gray-700);
}

/* ===== MAIN CONTENT & PAGE LAYOUT ===== */
.main-content {
    padding: var(--spacing-xl) 0;
    min-height: calc(100vh - 200px);
}

.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--gray-200);
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0 0 var(--spacing-xs) 0;
    line-height: 1.2;
}

.page-description {
    font-size: 1rem;
    color: var(--gray-600);
    margin: 0;
    line-height: 1.5;
}

.page-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .page-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .page-title {
        font-size: 1.5rem;
    }
    
    .page-actions {
        width: 100%;
        flex-wrap: wrap;
    }
}

/* ===== SETTINGS PAGE ===== */
.settings-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 0;
    border-bottom: 2px solid var(--gray-300);
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: thin;
    position: relative;
}

.settings-tab {
    padding: 8px 12px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 1px solid var(--gray-300);
    border-bottom: 1px solid var(--gray-300);
    border-radius: 8px 8px 0 0;
    cursor: pointer;
    font-size: 0.95rem;
    color: var(--gray-700);
    transition: all var(--transition-fast);
    white-space: nowrap;
    position: relative;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.settings-tab:hover {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    color: var(--primary);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

div.settings-tabs button.settings-tab.active {
    color: white !important;
    background: linear-gradient(135deg, var(--primary) 0%, #2563eb 100%);
    border-color: var(--primary);
    border-bottom-color: white;
    font-weight: 600;
    transform: translateY(1px);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

button.settings-tab.active:hover {
    color: white !important;
}

button.settings-tab.active,
button.settings-tab.active *,
button.settings-tab.active:hover,
button.settings-tab.active:hover * {
    color: white !important;
}

button.settings-tab.active i,
button.settings-tab.active:hover i {
    color: white !important;
}

.settings-tab i {
    margin-right: 6px;
}

.settings-content {
    display: none;
}

.settings-content.active {
    display: block;
    animation: fadeIn 0.3s ease-in;
}

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

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-decoration: none;
    line-height: 1.5;
}

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

/* Primary button - Blue/Purple gradient */
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #ffffff;
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #5568d3 0%, #653b8c 100%);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* Secondary button - Gray */
.btn-secondary {
    background: #6c757d;
    color: #ffffff;
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover:not(:disabled) {
    background: #5a6268;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(108, 117, 125, 0.4);
}

/* Success button - Green gradient */
.btn-success {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    color: #ffffff;
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-success:hover:not(:disabled) {
    background: linear-gradient(135deg, #0d7a72 0%, #2cd365 100%);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(56, 239, 125, 0.4);
}

/* Danger button - Red gradient */
.btn-danger {
    background: linear-gradient(135deg, #eb3349 0%, #f45c43 100%);
    color: #ffffff;
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-danger:hover:not(:disabled) {
    background: linear-gradient(135deg, #d42a3e 0%, #e04d3a 100%);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(235, 51, 73, 0.4);
}

/* Warning button - Orange/Yellow gradient */
.btn-warning {
    background: linear-gradient(135deg, #f2994a 0%, #f2c94c 100%);
    color: #ffffff;
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-warning:hover:not(:disabled) {
    background: linear-gradient(135deg, #e0883b 0%, #e0b83d 100%);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(242, 153, 74, 0.4);
}

/* Info button - Cyan/Light Blue gradient */
.btn-info {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: #ffffff;
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-info:hover:not(:disabled) {
    background: linear-gradient(135deg, #3a9ae8 0%, #00dae8 100%);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 172, 254, 0.4);
}

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

.btn-outline:hover:not(:disabled) {
    color: var(--white);
    background-color: var(--primary);
}

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

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

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

/* ===== CARDS ===== */
.card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: box-shadow var(--transition-fast);
}

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

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    background-color: var(--gray-50);
}

.card-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

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

.card-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    background-color: var(--gray-50);
}

/* ===== MAIN FOOTER ===== */
.main-footer {
    margin-top: 60px;
    padding: 30px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.main-footer .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.main-footer p {
    margin: 0;
    font-size: 14px;
    opacity: 0.95;
}

/* ===== ALERTS ===== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
}

.alert-success {
    color: #155724;
    background-color: var(--success-light);
    border-color: #c3e6cb;
}

.alert-danger {
    color: #721c24;
    background-color: var(--danger-light);
    border-color: #f5c6cb;
}

.alert-warning {
    color: #856404;
    background-color: var(--warning-light);
    border-color: #ffeaa7;
}

.alert-info {
    color: #0c5460;
    background-color: var(--info-light);
    border-color: #bee5eb;
}

/* ===== BADGES ===== */
.badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: var(--radius-sm);
}

.badge-primary { background-color: var(--primary); color: var(--white); }
.badge-success { background-color: var(--success); color: var(--white); }
.badge-danger { background-color: var(--danger); color: var(--white); }
.badge-warning { background-color: var(--warning); color: var(--gray-900); }
.badge-info { background-color: var(--info); color: var(--white); }
.badge-secondary { background-color: var(--gray-600); color: var(--white); }

/* ===== LOADING SPINNER ===== */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-300);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spinner-spin 0.8s linear infinite;
}

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

.spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 4px;
}

/* ===== UTILITIES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--gray-600); }

.bg-primary { background-color: var(--primary); }
.bg-success { background-color: var(--success); }
.bg-danger { background-color: var(--danger); }
.bg-warning { background-color: var(--warning); }
.bg-light { background-color: var(--gray-100); }
.bg-white { background-color: var(--white); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: var(--spacing-xs); }
.pt-2 { padding-top: var(--spacing-sm); }
.pt-3 { padding-top: var(--spacing-md); }
.pt-4 { padding-top: var(--spacing-lg); }
.pt-5 { padding-top: var(--spacing-xl); }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: var(--spacing-xs); }
.pb-2 { padding-bottom: var(--spacing-sm); }
.pb-3 { padding-bottom: var(--spacing-md); }
.pb-4 { padding-bottom: var(--spacing-lg); }
.pb-5 { padding-bottom: var(--spacing-xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.flex-row { flex-direction: row; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }

.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }
.gap-5 { gap: var(--spacing-xl); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 720px;
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 540px;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.25rem; }
    h5 { font-size: 1.1rem; }
    h6 { font-size: 1rem; }
}

/* Tablet responsive */
/* Responsive Navigation - Tablet */
@media (max-width: 1200px) {
    .nav-item {
        padding: 10px 12px;
        font-size: 0.9rem;
    }
}

@media (max-width: 992px) {
    .nav-item span {
        display: none;
    }
    
    .nav-item {
        padding: 10px 10px;
    }
    
    .nav-item i {
        font-size: 1.3rem;
        margin: 0;
    }
    
    .dropdown-icon {
        display: none;
    }
    
    .nav-dropdown-menu {
        left: auto;
        right: 0;
    }
    
    .user-info-compact {
        display: none;
    }
    
    .dropdown-arrow {
        display: none;
    }
}

/* Mobile responsive */
@media (max-width: 768px) {
    .header-top {
        padding: 12px var(--spacing-md);
    }
    
    .logo-image {
        width: 45px !important;
        height: 45px !important;
    }
    
    .logo-text {
        font-size: 1.2rem;
    }
    
    .header-nav {
        padding: 0 var(--spacing-md);
        position: relative;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base);
        z-index: 999;
        margin: 0;
    }
    
    .main-nav.active {
        max-height: 800px;
        border-bottom: 1px solid var(--gray-200);
    }
    
    .nav-dropdown {
        width: 100%;
    }
    
    .nav-item {
        color: var(--gray-700);
        padding: 14px var(--spacing-md);
        border-bottom: 1px solid var(--gray-200);
        justify-content: flex-start;
        gap: 14px;
        transform: none;
        width: 100%;
    }
    
    .nav-item span {
        display: inline;
    }
    
    .nav-item i {
        font-size: 1.2rem;
    }
    
    .dropdown-icon {
        display: inline;
        margin-left: auto;
    }
    
    .nav-item:hover {
        background: var(--gray-100);
        color: var(--primary);
        transform: none;
    }
    
    .nav-item.active {
        background: linear-gradient(90deg, var(--primary-light), var(--primary));
        color: var(--white);
        box-shadow: none;
    }
    
    .nav-item.active::after {
        display: none;
    }
    
    /* Mobile dropdown menu */
    .nav-dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: var(--gray-50);
        margin: 0;
        border-radius: 0;
        display: none;
    }
    
    .nav-dropdown:hover .nav-dropdown-menu {
        display: none;
    }
    
    .nav-dropdown.open .nav-dropdown-menu {
        display: block;
    }
    
    .nav-dropdown-menu .dropdown-item {
        padding-left: 50px;
        font-size: 0.85rem;
    }
    
    .logo-text {
        font-size: 1.1rem;
    }
    
    .user-dropdown {
        margin-left: var(--spacing-sm);
    }
}

@media (max-width: 576px) {
    .container {
        max-width: 100%;
        padding: 0 var(--spacing-sm);
    }
    
    .header-top {
        padding: 10px var(--spacing-sm);
    }
    
    .header-nav {
        padding: 0 var(--spacing-sm);
        min-height: 50px;
    }
    
    .logo-image {
        width: 40px !important;
        height: 40px !important;
    }
    
    .logo-text {
        font-size: 1rem;
    }
    
    .user-dropdown-toggle {
        padding: 6px 10px;
    }
    
    .user-avatar {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
}

/* ===== MODAL OVERLAY ===== */
/* ===== MODERN BEAUTIFUL MODALS ===== */

.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 9998;
    display: none;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease-out;
}

.modal-backdrop.show {
    display: flex !important;
}

.modal-overlay {
    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: 9999;
    animation: fadeIn 0.2s ease-out;
}

/* Modal Dialog Container */
.modal-dialog {
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Modal Content */
.modal-content {
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3),
                0 0 0 1px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.modal-container {
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    max-width: 900px;
    width: 95%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.3s ease-out;
}

@media (max-width: 768px) {
    .modal-dialog,
    .modal-container {
        width: 98%;
        max-width: 100%;
        max-height: 95vh;
    }
}

/* Modal Header */
.modal-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 24px 28px;
    border-bottom: none;
}

.modal-header h3 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    color: white;
}

.modal-header h3 i {
    font-size: 22px;
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    color: var(--gray-600);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
}

.modal-close:hover {
    background: var(--gray-200);
    color: var(--gray-900);
}

/* Modal Body */
.modal-body {
    padding: 28px;
    color: #333;
    line-height: 1.6;
}

.modal-body p {
    margin: 0 0 16px 0;
}

.modal-body p:last-child {
    margin-bottom: 0;
}

/* Modal Footer */
.modal-footer {
    padding: 20px 28px;
    background: #f8f9fa;
    border-top: 1px solid #e9ecef;
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* Buttons in Modal Footer */
.modal-footer .btn {
    min-width: 100px;
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
}

.modal-footer .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

/* Color Variants for Different Modal Types */
.modal-primary .modal-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.modal-success .modal-header {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
}

.modal-warning .modal-header {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.modal-danger .modal-header {
    background: linear-gradient(135deg, #eb3349 0%, #f45c43 100%);
}

.modal-info .modal-header {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.modal-primary .modal-header h3,
.modal-primary .modal-header .fas {
    color: white;
}

.modal-success .modal-content {
    border-left: 5px solid var(--success);
    box-shadow: 0 10px 40px rgba(40, 167, 69, 0.2);
}

.modal-success .modal-header {
    background: linear-gradient(135deg, #28a745 0%, #218838 100%);
    color: white;
    border-bottom: none;
}

.modal-success .modal-header h3,
.modal-success .modal-header .fas {
    color: white;
}

.modal-warning .modal-content {
    border-left: 5px solid var(--warning);
    box-shadow: 0 10px 40px rgba(255, 193, 7, 0.2);
}

.modal-warning .modal-header {
    background: linear-gradient(135deg, #ffc107 0%, #e0a800 100%);
    color: #212529;
    border-bottom: none;
}

.modal-info .modal-content {
    border-left: 5px solid var(--info);
    box-shadow: 0 10px 40px rgba(23, 162, 184, 0.2);
}

.modal-info .modal-header {
    background: linear-gradient(135deg, #17a2b8 0%, #138496 100%);
    color: white;
    border-bottom: none;
}

.modal-info .modal-header h3,
.modal-info .modal-header .fas {
    color: white;
}

/* Add extra padding on right to prevent scrollbar overlap */
.modal-body::-webkit-scrollbar {
    width: 12px;
}

.modal-body::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: 6px;
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: 6px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

/* Info boxes within modals */
.modal-body .info-box {
    background: #f8f9fa;
    padding: 16px;
    border-radius: 8px;
    margin: 16px 0;
    border-left: 4px solid #667eea;
}

.modal-body .warning-box {
    background: #fff3cd;
    padding: 16px;
    border-radius: 8px;
    margin: 16px 0;
    border-left: 4px solid #ffc107;
    color: #856404;
}

.modal-body .danger-box {
    background: #f8d7da;
    padding: 16px;
    border-radius: 8px;
    margin: 16px 0;
    border-left: 4px solid #dc3545;
    color: #721c24;
}

.modal-body .success-box {
    background: #d4edda;
    padding: 16px;
    border-radius: 8px;
    margin: 16px 0;
    border-left: 4px solid #28a745;
    color: #155724;
}

/* Form validation states */
.form-control.is-invalid {
    border-color: var(--danger);
}

.form-control.is-warning {
    border-color: var(--warning);
}

.invalid-feedback {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: block;
}

.warning-feedback {
    color: var(--warning);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: block;
}

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

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

/* ===== PRINT STYLES ===== */
@media print {
    body {
        background-color: white;
        color: black;
    }
    
    .no-print {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid var(--gray-300);
    }
}