/**
 * OALO Pilot Logbook - Main Stylesheet
 * Mobile-first responsive design with Light/Dark theme support
 */

/* =====================================================
   CSS Variables - Light Theme (Default)
   ===================================================== */
:root, [data-theme="light"] {
    /* Colors */
    --primary: #1e3a5f;
    --primary-light: #2d5a87;
    --primary-dark: #152a45;
    --secondary: #64748b;
    --accent: #0ea5e9;
    
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --error-light: #fee2e2;
    --info: #3b82f6;
    --info-light: #dbeafe;
    
    --white: #ffffff;
    --black: #000000;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Semantic colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --nav-bg: #1e3a5f;
    --nav-text: #ffffff;
}

/* =====================================================
   CSS Variables - Dark Theme
   ===================================================== */
[data-theme="dark"] {
    --primary: #3b82f6;
    --primary-light: #60a5fa;
    --primary-dark: #1d4ed8;
    --secondary: #94a3b8;
    --accent: #38bdf8;
    
    --success: #22c55e;
    --success-light: #166534;
    --warning: #fbbf24;
    --warning-light: #78350f;
    --danger: #f87171;
    --error-light: #7f1d1d;
    --info: #60a5fa;
    --info-light: #1e3a8a;
    
    --white: #0f172a;
    --black: #f8fafc;
    --gray-50: #1e293b;
    --gray-100: #1e293b;
    --gray-200: #334155;
    --gray-300: #475569;
    --gray-400: #64748b;
    --gray-500: #94a3b8;
    --gray-600: #cbd5e1;
    --gray-700: #e2e8f0;
    --gray-800: #f1f5f9;
    --gray-900: #f8fafc;
    
    /* Semantic colors */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --card-bg: #1e293b;
    --input-bg: #1e293b;
    --nav-bg: #0f172a;
    --nav-text: #f8fafc;
}

/* =====================================================
   Shared CSS Variables (both themes)
   ===================================================== */
:root {
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    
    /* Layout */
    --top-nav-height: 60px;
    --bottom-nav-height: 65px;
    --side-nav-width: 260px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition: 200ms ease;
    --transition-slow: 300ms ease;
}

/* =====================================================
   Reset & Base
   ===================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
}

/* Ensure all interactive elements are clickable on mobile */
a, button, [role="button"], input, select, textarea, .btn, .nav-icon-btn, .menu-toggle, .user-btn, .bottom-nav-item, .dropdown-item {
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
    touch-action: manipulation;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

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

img {
    max-width: 100%;
    height: auto;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* =====================================================
   Top Navigation
   ===================================================== */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--top-nav-height);
    background: var(--primary);
    color: var(--white);
    z-index: 1000;
    box-shadow: var(--shadow-md);
    overflow: visible;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 var(--spacing-4);
    width: 100%;
    /* Removed max-width to prevent dropdown cutoff on wide screens */
}

.nav-left, .nav-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    flex-shrink: 0;
}

.nav-right {
    margin-right: 0;
    padding-right: 0;
}

.menu-toggle {
    display: flex !important;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    min-width: 44px;
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: var(--radius);
    transition: background var(--transition-fast);
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(255, 255, 255, 0.2);
    touch-action: manipulation;
    position: relative;
    z-index: 100;
    flex-shrink: 0;
}

.menu-toggle i, .menu-toggle svg {
    width: 24px;
    height: 24px;
}

.menu-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--white);
    font-weight: 700;
    font-size: var(--font-size-xl);
}

.logo img {
    height: 32px;
    width: auto;
}

/* Nav Icon Buttons */
.nav-icon-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    color: var(--white);
    border-radius: var(--radius);
    transition: background var(--transition-fast);
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(255, 255, 255, 0.2);
    touch-action: manipulation;
    z-index: 100;
}

.nav-icon-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.nav-icon-btn .badge {
    position: absolute;
    top: 4px;
    right: 4px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background: var(--danger);
    color: var(--white);
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* User Button */
.user-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2);
    color: var(--white);
    border-radius: var(--radius);
    transition: background var(--transition-fast);
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(255, 255, 255, 0.2);
    touch-action: manipulation;
    z-index: 100;
}

.user-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: var(--accent);
    color: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.user-name {
    display: none;
}

@media (min-width: 768px) {
    .user-name {
        display: block;
    }
}

/* Dropdown Menus */
.nav-item {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 280px;
    max-width: calc(100vw - 20px);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition);
    z-index: 1001;
}

/* Ensure dropdowns don't overflow viewport on desktop */
@media (min-width: 1024px) {
    .nav-right .dropdown-menu {
        right: 0;
        left: auto;
    }
}

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

.dropdown-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--gray-200);
    font-weight: 600;
    color: var(--gray-800);
}

.dropdown-header a {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.dropdown-footer {
    padding: var(--spacing-3) var(--spacing-4);
    border-top: 1px solid var(--gray-200);
    text-align: center;
}

.dropdown-footer a {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.dropdown-divider {
    height: 1px;
    background: var(--gray-200);
    margin: var(--spacing-2) 0;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    color: var(--gray-700);
    transition: background var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

.dropdown-item i {
    width: 18px;
    height: 18px;
}

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

.dropdown-user-info {
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--gray-200);
}

.dropdown-user-info strong {
    display: block;
    color: var(--gray-900);
}

.dropdown-user-info small {
    color: var(--gray-500);
    font-size: var(--font-size-sm);
}

/* Notification Menu */
.notification-menu {
    width: 360px;
    max-width: calc(100vw - 20px);
}

.notification-list {
    max-height: 400px;
    overflow-y: auto;
}

.notification-item {
    display: flex;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--gray-100);
    transition: background var(--transition-fast);
    cursor: pointer;
}

.notification-item:hover {
    background: var(--gray-50);
}

.notification-item.unread {
    background: var(--gray-50);
}

.notification-item.unread::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--accent);
}

.notification-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.notification-icon.blue { background: #dbeafe; color: #2563eb; }
.notification-icon.green { background: #dcfce7; color: #16a34a; }
.notification-icon.orange { background: #ffedd5; color: #ea580c; }
.notification-icon.yellow { background: #fef3c7; color: #d97706; }
.notification-icon.gray { background: var(--gray-200); color: var(--gray-600); }

.notification-content {
    flex: 1;
    min-width: 0;
}

.notification-title {
    font-weight: 500;
    color: var(--gray-900);
    margin-bottom: 2px;
}

.notification-message {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.notification-time {
    font-size: var(--font-size-xs);
    color: var(--gray-400);
    margin-top: var(--spacing-1);
}

.notification-empty {
    padding: var(--spacing-8);
    text-align: center;
    color: var(--gray-500);
}

/* =====================================================
   Side Navigation
   ===================================================== */
.side-nav {
    /* DO NOT use position:fixed here - it blocks clicks even with pointer-events:none in some browsers */
    position: fixed;
    top: var(--top-nav-height);
    left: -9999px; /* Move completely off-screen when closed */
    bottom: 0;
    width: var(--side-nav-width);
    max-width: 85vw; /* Prevent overflow on small screens */
    z-index: 999;
    visibility: hidden;
    overflow: hidden;
}

.side-nav.open {
    left: 0;
    visibility: visible;
}

.side-nav-overlay {
    position: fixed;
    top: var(--top-nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
    z-index: 998;
}

.side-nav.open .side-nav-overlay {
    opacity: 1;
    visibility: visible;
}

.side-nav-content {
    position: relative;
    width: 100%;
    height: 100%;
    background: var(--white);
    border-right: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
    z-index: 999;
}

.side-nav.open .side-nav-content {
    transform: translateX(0);
}

.side-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--gray-200);
    font-weight: 600;
}

.close-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--gray-500);
    border-radius: var(--radius);
    transition: all var(--transition-fast);
}

.close-btn:hover {
    background: var(--gray-100);
    color: var(--gray-700);
}

.nav-menu {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-4) 0;
    list-style: none;
}

.nav-section {
    padding: var(--spacing-4) var(--spacing-4) var(--spacing-2);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-400);
}

.nav-menu li a {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    color: var(--gray-600);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.nav-menu li a:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

.nav-menu li a.active {
    background: var(--primary);
    color: var(--white);
}

.nav-menu li a i {
    width: 20px;
    height: 20px;
}

.nav-badge {
    margin-left: auto;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: var(--danger);
    color: var(--white);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-menu li a.active .nav-badge {
    background: rgba(255, 255, 255, 0.3);
}

.side-nav-footer {
    padding: var(--spacing-4);
    border-top: 1px solid var(--gray-200);
}

.email-forward-info {
    background: var(--gray-100);
    padding: var(--spacing-3);
    border-radius: var(--radius);
    text-align: center;
}

.email-forward-info small {
    display: block;
    color: var(--gray-500);
    font-size: var(--font-size-xs);
    margin-bottom: var(--spacing-1);
}

.email-forward-info code {
    font-size: var(--font-size-sm);
    color: var(--primary);
    word-break: break-all;
}

/* Mobile Side Nav */
@media (max-width: 1023px) {
    .side-nav-overlay {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-slow);
        pointer-events: none; /* closed: do not block clicks */
    }
    
    .side-nav.open .side-nav-overlay {
        opacity: 1;
        visibility: visible;
        pointer-events: auto; /* open: overlay can be tapped to close */
    }
    
    .side-nav-content {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 280px;
        z-index: 1000;
    }
    
    .side-nav-header {
        padding-top: calc(var(--spacing-4) + env(safe-area-inset-top));
    }
	
}

/* Desktop Side Nav */
@media (min-width: 1024px) {
    .menu-toggle {
        display: flex;
    }
    
    .side-nav-content {
        transform: translateX(-100%);
    }
    
    .side-nav.open .side-nav-content {
        transform: translateX(0);
    }
    
    .side-nav-header {
        display: flex;
    }
    
    .main-content.with-nav {
        margin-left: 0;
    }
    
    /* Hide mobile-only items on desktop */
    .mobile-only {
        display: none !important;
    }
}

/* =====================================================
   Bottom Navigation (Mobile)
   ===================================================== */
.bottom-nav {
    display: none;
}

@media (max-width: 767px) {
    .bottom-nav {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: var(--bottom-nav-height);
        background: var(--white);
        border-top: 1px solid var(--gray-200);
        padding-bottom: env(safe-area-inset-bottom);
        z-index: 9999;
    }
    
    /* Ensure nothing overlaps the bottom nav */
    .main-content, .card, .page-content, [class*="card"], [class*="section"] {
        position: relative;
        z-index: 1;
    }
    
    .bottom-nav-item {
        flex: 1;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2px;
        color: var(--gray-500);
        font-size: var(--font-size-xs);
        transition: color var(--transition-fast);
        text-decoration: none;
        cursor: pointer;
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
        touch-action: manipulation;
        min-height: 44px;
    }
    
    .bottom-nav-item i {
        width: 24px;
        height: 24px;
    }
    
    .bottom-nav-item.active {
        color: var(--primary);
    }
    
    .bottom-nav-item.add-btn {
        position: relative;
    }
    
    .bottom-nav-item.add-btn i {
        width: 44px;
        height: 44px;
        background: var(--primary);
        color: var(--white);
        border-radius: var(--radius-full);
        padding: 10px;
        margin-top: -20px;
        box-shadow: var(--shadow-md);
    }
    
    .main-content.with-nav {
        padding-bottom: calc(var(--bottom-nav-height) + var(--spacing-6) + 20px);
    }
}

/* =====================================================
   Main Content
   ===================================================== */
.main-content {
    padding-top: var(--top-nav-height);
    min-height: 100vh;
}

.main-content.with-nav {
    padding: calc(var(--top-nav-height) + var(--spacing-4)) var(--spacing-4) var(--spacing-6);
}

@media (min-width: 768px) {
    .main-content.with-nav {
        padding: calc(var(--top-nav-height) + var(--spacing-6)) var(--spacing-6) var(--spacing-8);
    }
}

@media (max-width: 767px) {
    .main-content.with-nav {
        padding-bottom: calc(var(--bottom-nav-height) + var(--spacing-6) + 20px);
    }
}

/* =====================================================
   Alerts
   ===================================================== */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-4);
}

.alert i {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.alert span {
    flex: 1;
}

.alert-close {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: inherit;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.alert-close:hover {
    opacity: 1;
}

.alert-success {
    background: #dcfce7;
    color: #166534;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
}

/* =====================================================
   Buttons
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-5);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    text-decoration: none;
}

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

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

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

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--gray-300);
}

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

.btn-ghost:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
}

.btn-outline:hover:not(:disabled) {
    background: var(--gray-100);
}

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

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
}

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

.btn-success:hover:not(:disabled) {
    background: #059669;
}

.btn-lg {
    padding: var(--spacing-4) var(--spacing-6);
    font-size: var(--font-size-base);
}

.btn-sm {
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-xs);
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
}

/* =====================================================
   Forms
   ===================================================== */
.form-group {
    margin-bottom: var(--spacing-4);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-700);
}

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

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-base);
    color: var(--gray-900);
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(45, 90, 135, 0.1);
}

.form-input::placeholder {
    color: var(--gray-400);
}

.form-input.error,
.form-select.error {
    border-color: var(--danger);
}

.form-error {
    margin-top: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--danger);
}

.form-hint {
    margin-top: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

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

.form-checkbox,
.form-radio {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    cursor: pointer;
}

.form-checkbox input,
.form-radio input {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--primary);
}

.form-row {
    display: grid;
    gap: var(--spacing-4);
}

@media (min-width: 640px) {
    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-row.cols-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Input with icon */
.input-icon-wrapper {
    position: relative;
}

.input-icon-wrapper .form-input {
    padding-left: 44px;
}

.input-icon-wrapper .input-icon {
    position: absolute;
    left: var(--spacing-4);
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--gray-400);
}

/* Password toggle */
.password-toggle {
    position: absolute;
    right: var(--spacing-3);
    top: 50%;
    transform: translateY(-50%);
    padding: var(--spacing-2);
    color: var(--gray-400);
    cursor: pointer;
}

.password-toggle:hover {
    color: var(--gray-600);
}

/* =====================================================
   Cards
   ===================================================== */
.card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4) var(--spacing-5);
    border-bottom: 1px solid var(--gray-200);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
}

.card-body {
    padding: var(--spacing-5);
}

.card-footer {
    padding: var(--spacing-4) var(--spacing-5);
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

/* =====================================================
   Page Headers
   ===================================================== */
.page-header {
    margin-bottom: var(--spacing-6);
}

.page-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-1);
}

.page-subtitle {
    color: var(--gray-500);
}

/* =====================================================
   Stats Cards
   ===================================================== */
.stats-grid {
    display: grid;
    gap: var(--spacing-4);
    grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-4);
    box-shadow: var(--shadow);
}

.stat-card-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-3);
}

.stat-card-icon.blue { background: #dbeafe; color: #2563eb; }
.stat-card-icon.green { background: #dcfce7; color: #16a34a; }
.stat-card-icon.purple { background: #f3e8ff; color: #9333ea; }
.stat-card-icon.orange { background: #ffedd5; color: #ea580c; }

.stat-card-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
}

.stat-card-label {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    margin-top: var(--spacing-1);
}

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

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: var(--spacing-3) var(--spacing-4);
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.table th {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-600);
    background: var(--gray-50);
    white-space: nowrap;
}

.table tbody tr:hover {
    background: var(--gray-50);
}

.table td {
    font-size: var(--font-size-sm);
}

/* =====================================================
   Loading States
   ===================================================== */
.loading-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-8);
}

.spin {
    animation: spin 1s linear infinite;
}

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

/* =====================================================
   Empty States
   ===================================================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-12) var(--spacing-4);
}

.empty-state-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-4);
    color: var(--gray-300);
}

.empty-state-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-2);
}

.empty-state-text {
    color: var(--gray-500);
    margin-bottom: var(--spacing-6);
}

/* =====================================================
   Auth Pages
   ===================================================== */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
}

.auth-container {
    width: 100%;
    max-width: 420px;
}

.auth-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.auth-header {
    text-align: center;
    padding: var(--spacing-8) var(--spacing-6) var(--spacing-6);
}

.auth-logo {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-4);
}

.auth-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-2);
}

.auth-subtitle {
    color: var(--gray-500);
}

.auth-body {
    padding: 0 var(--spacing-6) var(--spacing-6);
}

.auth-footer {
    padding: var(--spacing-4) var(--spacing-6);
    background: var(--gray-50);
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin: var(--spacing-6) 0;
    color: var(--gray-400);
    font-size: var(--font-size-sm);
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--gray-200);
}

/* =====================================================
   Utilities
   ===================================================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--gray-500); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-sm { font-size: var(--font-size-sm); }
.text-xs { font-size: var(--font-size-xs); }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.mt-1 { margin-top: var(--spacing-1); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--spacing-2); }
.gap-4 { gap: var(--spacing-4); }

.hidden { display: none; }

@media (min-width: 768px) {
    .md\:hidden { display: none; }
    .md\:block { display: block; }
    .md\:flex { display: flex; }
}

/* =====================================================
   Signature Pad
   ===================================================== */
.signature-pad-wrapper {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-lg);
    background: var(--gray-50);
    padding: var(--spacing-2);
}

.signature-pad {
    width: 100%;
    height: 200px;
    background: var(--white);
    border-radius: var(--radius);
    cursor: crosshair;
    touch-action: none;
}

.signature-actions {
    display: flex;
    gap: var(--spacing-2);
    margin-top: var(--spacing-3);
}

/* =====================================================
   Flight Card (Mobile)
   ===================================================== */
.flight-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: var(--spacing-4);
    overflow: hidden;
}

.flight-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-3) var(--spacing-4);
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

.flight-date {
    font-weight: 600;
    color: var(--gray-700);
}

.flight-status {
    font-size: var(--font-size-xs);
    font-weight: 500;
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.flight-status.confirmed { background: #dcfce7; color: #166534; }
.flight-status.pending { background: #fef3c7; color: #92400e; }
.flight-status.draft { background: var(--gray-200); color: var(--gray-600); }

.flight-card-body {
    padding: var(--spacing-4);
}

.flight-route {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-3);
}

.flight-airport {
    text-align: center;
}

.flight-airport-code {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-900);
}

.flight-airport-name {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

.flight-route-line {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.flight-route-line::before,
.flight-route-line::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--gray-300);
}

.flight-route-line i {
    color: var(--primary);
}

.flight-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-3);
    padding-top: var(--spacing-3);
    border-top: 1px solid var(--gray-100);
}

.flight-detail {
    text-align: center;
}

.flight-detail-label {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
    margin-bottom: 2px;
}

.flight-detail-value {
    font-weight: 600;
    color: var(--gray-800);
}

/* =====================================================
   Responsive Fixes - Prevent Overflow
   ===================================================== */
.card-body {
    overflow-x: auto;
}

.flex {
    flex-wrap: wrap;
}

/* Page header responsive - ensure buttons are clickable */
.page-header .flex {
    gap: var(--spacing-3);
}

@media (max-width: 640px) {
    .page-header .flex {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-3);
    }
    
    .page-header .flex .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Bulk actions bar responsive */
@media (max-width: 768px) {
    .card-body .flex {
        gap: var(--spacing-2);
    }
    
    .card-body .flex .btn {
        padding: var(--spacing-2) var(--spacing-3);
        font-size: var(--font-size-sm);
    }
    
    .card-body .flex .btn i {
        display: none;
    }
    
    .form-select {
        min-width: auto !important;
        width: auto;
    }
}

/* Table horizontal scroll */
.table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Prevent content overflow but allow buttons to be clickable */
.main-content {
    overflow-x: hidden;
}

/* Ensure buttons have proper z-index and are clickable */
.btn {
    position: relative;
    z-index: 1;
}

/* Fix for narrow screens - ensure touch targets are accessible */
@media (max-width: 480px) {
    .btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    .btn-sm {
        min-height: 36px;
        min-width: 36px;
        padding: 6px 10px;
    }
    
    /* Ensure all interactive elements are tappable */
    .form-select, .form-input, select, input[type="text"], input[type="email"], input[type="password"], textarea {
        min-height: 44px;
        font-size: 16px; /* Prevents iOS zoom */
    }
    
    /* Ensure page actions don't get cut off */
    .page-header {
        position: relative;
        z-index: 10;
    }
    
    /* Fix overlapping elements */
    .card {
        overflow: visible;
    }
    
    /* Ensure buttons in flex containers are accessible */
    .flex {
        flex-wrap: wrap;
    }
    
    /* Quick actions should wrap properly */
    .quick-actions-grid {
        gap: var(--spacing-2);
    }
    
    .quick-actions-grid .btn {
        flex: 1 1 calc(50% - var(--spacing-2));
        min-width: 120px;
        text-align: center;
        justify-content: center;
    }
    
    /* Toggle buttons */
    .toggle-btn {
        min-height: 44px;
        padding: 10px 12px;
    }
    
    /* View toggle buttons */
    .view-btn {
        min-height: 40px;
        padding: 8px 12px;
    }
}

/* =====================================================
   Mobile Dropdown Fix - Show from top, not bottom
   ===================================================== */
@media (max-width: 1023px) {
    /* User dropdown menu - position from top */
    .user-dropdown .dropdown-menu,
    .notification-dropdown .dropdown-menu {
        position: fixed !important;
        top: 60px !important;
        bottom: auto !important;
        right: 10px !important;
        left: auto !important;
        max-width: calc(100vw - 20px);
        max-height: calc(100vh - 140px);
        overflow-y: auto;
        z-index: 1100;
    }
    
    .user-dropdown .dropdown-menu {
        min-width: 260px;
    }
    
    .notification-dropdown .dropdown-menu {
        min-width: 320px;
        width: calc(100vw - 20px);
        max-width: 400px;
    }
}

/* =====================================================
   Theme Toggle Buttons
   ===================================================== */
.theme-toggle-container {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.theme-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--card-bg);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.theme-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

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

.theme-btn i {
    width: 18px;
    height: 18px;
}

/* =====================================================
   Dark Theme Specific Overrides
   ===================================================== */
[data-theme="dark"] .top-nav {
    background: var(--nav-bg);
    border-bottom: 1px solid var(--border-color);
}

[data-theme="dark"] .side-nav-content {
    background: var(--bg-secondary);
}

[data-theme="dark"] .form-input,
[data-theme="dark"] .form-select,
[data-theme="dark"] .form-textarea {
    background: var(--input-bg);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .form-input:focus,
[data-theme="dark"] .form-select:focus,
[data-theme="dark"] .form-textarea:focus {
    border-color: var(--primary);
}

[data-theme="dark"] .table th {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

[data-theme="dark"] .table td {
    border-color: var(--border-color);
}

[data-theme="dark"] .alert {
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .modal-content {
    background: var(--card-bg);
}

[data-theme="dark"] .modal-overlay {
    background: rgba(0, 0, 0, 0.7);
}

[data-theme="dark"] .btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .btn-outline {
    border-color: var(--border-color);
    color: var(--text-secondary);
}

[data-theme="dark"] .text-muted {
    color: var(--text-muted) !important;
}