@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;500;600;700;800&display=swap');

:root {
    /* Color Palette - IAG Fayoum Official Identity */
    --clr-bg-base: #f1f5f9;                 /* Slate-100 Base App background */
    --clr-bg-surface: #ffffff;               /* Clean white surface for cards/panels */
    --clr-bg-elevated: #f8fafc;              /* Slate-50 Elevated secondary surface */
    
    /* Brand Accents */
    --brand-primary: #0a5c56;                /* Deep Identity Green (Header/Brand) */
    --clr-primary: #0f766e;                  /* Interactive Teal 600 */
    --clr-primary-hover: #0d6b63;            /* Interactive Primary Hover */
    --clr-primary-glow: rgba(15, 118, 110, 0.25);
    --clr-secondary: #0369a1;                /* Accent Blue Links */
    
    /* Semantic Colors */
    --clr-success: #059669;
    --clr-danger: #dc2626;
    --clr-warning: #d97706;
    --clr-info: #2563eb;
    
    /* Text & Lines */
    --clr-text-main: #0f172a;                /* Headings */
    --clr-text-muted: #64748b;               /* Secondary text */
    --clr-text-inverse: #ffffff;
    
    --clr-border: #e2e8f0;                   /* Slate-200 border */
    
    /* Typography */
    --font-heading: 'Cairo', system-ui, sans-serif;
    --font-body: 'Cairo', system-ui, sans-serif;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 1rem;
    --space-4: 1.5rem;
    --space-5: 2rem;
    --space-6: 3rem;
    
    /* Layout */
    --sidebar-width: 280px;
    --header-height: 70px;
    
    /* Borders & Shadows */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-glow: 0 0 15px var(--clr-primary-glow);
    
    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--clr-bg-base);
    color: var(--clr-text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--clr-bg-surface);
    border-inline-end: 1px solid var(--clr-border);
    position: fixed;
    top: 0;
    inset-inline-start: 0;
    height: 100vh;
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    z-index: 1050; /* Ensuring sidebar stays above mobile nav bar */
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1); /* Elegant iOS spring feel */
    box-shadow: 4px 0 25px rgba(0,0,0,0.03); /* Subtle depth */
}

/* Sidebar Overlay */
.sidebar-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1040;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

.sidebar.collapsed {
    transform: translateX(-100%);
}

html[dir="rtl"] .sidebar.collapsed {
    transform: translateX(100%);
}

.sidebar-brand {
    padding: var(--space-4);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--clr-text-inverse);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    /* Injected exact radial gradient identity from fayoum login header */
    background: var(--brand-primary);
    background-image:
      radial-gradient(ellipse at top right,   rgba(20,184,166,0.25) 0%, transparent 60%),
      radial-gradient(ellipse at bottom left, rgba(4,120,115,0.3)   0%, transparent 60%);
}

.sidebar-brand i {
    color: var(--clr-primary);
}

.sidebar-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.nav-item {
    color: var(--clr-text-muted);
    text-decoration: none;
    padding: var(--space-3);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.nav-item i {
    transition: color var(--transition-fast);
}

.nav-item:hover {
    background-color: var(--clr-bg-elevated);
    color: var(--clr-text-main);
}

.nav-item:hover i {
    color: var(--brand-primary);
}

.nav-item.active {
    background-color: var(--clr-primary-glow);
    color: var(--clr-primary);
    font-weight: 700;
}

.nav-item.active i {
    color: var(--clr-primary);
}

/* Main Content area */
.main-wrapper {
    flex: 1;
    margin-inline-start: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-inline-start var(--transition-base);
}

.main-wrapper.expanded {
    margin-inline-start: 0;
}

/* Top Header */
.top-header {
    height: var(--header-height);
    background: rgba(var(--clr-bg-surface), 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--clr-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-4);
    position: sticky;
    top: 0;
    z-index: 90;
}

.header-left, .header-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.btn-icon {
    background: transparent;
    border: none;
    color: var(--clr-text-main);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
    display: grid;
    place-items: center;
}

.btn-icon:hover {
    background: var(--clr-bg-elevated);
}

.user-menu {
    position: relative;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: 6px 12px;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.user-menu:hover, .user-menu.active {
    background: var(--clr-bg-elevated);
    border-color: var(--clr-border);
}

.user-avatar {
    width: 38px; height: 38px;
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--clr-primary) 100%);
    color: white; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 0.9rem;
    box-shadow: 0 4px 10px rgba(10,92,86,0.25);
}

/* Premium Profile Dropdown */
.profile-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    left: auto;
    width: 280px;
    background: var(--clr-bg-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--clr-border);
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
    opacity: 0; visibility: hidden;
    transform: translateY(10px) scale(0.95);
    transform-origin: top right;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 2000;
    overflow: hidden;
}

html[dir="rtl"] .profile-dropdown {
    left: 0; right: auto;
    transform-origin: top left;
}

.profile-dropdown.open {
    opacity: 1; visibility: visible;
    transform: translateY(0) scale(1);
}

.pd-header {
    background: var(--clr-bg-elevated);
    padding: var(--space-4);
    border-bottom: 1px solid var(--clr-border);
    display: flex; align-items: center; gap: var(--space-3);
}

.pd-info h4 { font-weight: 700; color: var(--clr-text-main); margin-bottom: 2px; font-size: 1rem; }
.pd-info p { font-size: 0.8rem; color: var(--clr-text-muted); }

.pd-actions { padding: var(--space-2); }
.pd-item {
    display: flex; align-items: center; gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    color: var(--clr-text-main); text-decoration: none;
    font-weight: 600; font-size: 0.9rem; border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}
.pd-item:hover { background: var(--clr-bg-base); color: var(--brand-primary); }
.pd-item i { color: var(--clr-text-muted); transition: color var(--transition-fast); width: 18px; }
.pd-item:hover i { color: var(--brand-primary); }

.pd-divider { height: 1px; background: var(--clr-border); margin: var(--space-2) 0; }

.pd-logout { color: var(--clr-danger); }
.pd-logout i { color: var(--clr-danger); }
.pd-logout:hover { background: var(--color-danger-light); color: var(--clr-danger); }
.pd-logout:hover i { color: var(--clr-danger); }

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--clr-primary), hsl(35, 60%, 65%)); /* Gold to Beige gradient */
    color: var(--clr-text-inverse); /* Ensure text contrasts well against gold */
    display: grid;
    place-items: center;
    font-weight: 700;
}

/* Main Content Placeholder */
main#content {
    padding: var(--space-5);
    flex: 1;
}

/* Typography & Utilities */
h1 { font-family: var(--font-heading); font-size: 2.5rem; font-weight: 700; margin-bottom: var(--space-4); letter-spacing: -0.02em; }
h2 { font-family: var(--font-heading); font-size: 1.75rem; margin-bottom: var(--space-3); }
h3 { font-family: var(--font-heading); font-size: 1.25rem; font-weight: 600; }

.card {
    background: var(--clr-bg-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-soft);
    position: relative;
    overflow: hidden;
}

/* Glassmorphism accents */
.card::before {
    content: '';
    position: absolute;
    top: 0; inset-inline-end: 0;
    width: 150px; height: 150px;
    background: var(--clr-primary-glow);
    filter: blur(60px);
    border-radius: 50%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.5;
}

.card > * {
    position: relative;
    z-index: 1;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-primary-hover) 100%);
    color: var(--clr-text-inverse);
    box-shadow: 0 4px 12px rgba(15,118,110,0.25);
    border: none;
}

.btn-primary:hover {
    box-shadow: 0 6px 18px rgba(15,118,110,0.35);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(2px);
    box-shadow: none;
}

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: var(--clr-bg-elevated);
    color: var(--clr-text-main);
    border: 1px solid var(--clr-border);
}

.btn-secondary:hover {
    background: hsla(0, 0%, 100%, 0.1);
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0; inset-inline-start: 0; inset-inline-end: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 1000;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--clr-bg-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    width: 90%;
    max-width: 500px;
    transform: translateY(20px) scale(0.95);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-soft);
}

.modal-overlay.active .modal-content {
    transform: translateY(0) scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    font-family: var(--font-heading);
}

.modal-actions {
    margin-top: var(--space-4);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
}

/* Toasts */
.toast-container {
    position: fixed;
    bottom: var(--space-4);
    inset-inline-end: var(--space-4);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.toast {
    background: var(--clr-bg-elevated);
    border-inline-start: 4px solid var(--clr-primary);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-soft);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    transform: translateX(120%);
    transition: transform var(--transition-base);
    min-width: 250px;
}

html[dir="rtl"] .toast {
    transform: translateX(-120%);
}

.toast.show {
    transform: translateX(0);
}

html[dir="rtl"] .toast.show {
    transform: translateX(0);
}

.toast.success { border-color: var(--clr-success); }
.toast.error { border-color: var(--clr-danger); }
.toast.warning { border-color: var(--clr-warning); }

/* Bottom Navigation */
.bottom-nav {
    display: none; /* Hidden on desktop */
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(var(--clr-bg-surface), 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--clr-border);
    z-index: 1100; /* Stays above the sidebar and overlay so it never disappears */
    padding-bottom: env(safe-area-inset-bottom);
}

.bottom-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2) 0;
    color: var(--clr-text-muted);
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 500;
    gap: 4px;
    transition: all var(--transition-fast);
}

.bottom-nav-item i {
    width: 22px;
    height: 22px;
    transition: transform var(--transition-fast);
}

.bottom-nav-item:hover, .bottom-nav-item.active {
    color: var(--clr-primary);
}

.bottom-nav-item.active i {
    transform: translateY(-2px);
}

/* ── Ultra Premium KPI Dashboard Cards (Level 2 Wow-Factor) ── */
.premium-kpi-card {
    background: var(--clr-bg-surface);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    box-shadow: 0 4px 20px rgba(0,0,0,0.03), inset 0 0 0 1px rgba(255,255,255,0.5);
    border: 1px solid var(--clr-border);
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* Diagonal Shine Sweep Effect */
.premium-kpi-card::after {
    content: '';
    position: absolute;
    top: 0; left: -150%;
    width: 50%; height: 100%;
    background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.8) 50%, rgba(255,255,255,0) 100%);
    transform: skewX(-25deg);
    transition: left 0.7s ease;
    z-index: 1;
    pointer-events: none;
}

.premium-kpi-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 5px;
    background: linear-gradient(90deg, var(--clr-primary), var(--brand-primary));
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 2;
}

.premium-kpi-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(10, 92, 86, 0.15), inset 0 0 0 1px rgba(15,118,110,0.1);
    border-color: transparent;
}
.premium-kpi-card:hover::before {
    opacity: 1;
}
.premium-kpi-card:hover::after {
    left: 150%;
    transition: left 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.kpi-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
    position: relative; z-index: 3;
}

.kpi-icon-container {
    width: 54px; height: 54px;
    border-radius: var(--radius-lg);
    background: var(--clr-primary-light);
    color: var(--brand-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    position: relative;
    box-shadow: 0 4px 10px rgba(15, 118, 110, 0.1);
}

/* Pulsing background ring */
.kpi-icon-container::before {
    content: '';
    position: absolute;
    top: -4px; left: -4px; right: -4px; bottom: -4px;
    border-radius: inherit;
    background: var(--clr-primary-glow);
    z-index: -1;
    animation: pulseRing 3s infinite cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes pulseRing {
    0% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.15); opacity: 0; }
    100% { transform: scale(1); opacity: 0; }
}

.kpi-trend {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.85rem;
    font-weight: 700;
    padding: 6px 12px;
    border-radius: var(--radius-full);
}
.kpi-trend.positive {
    background: var(--color-success-light);
    color: var(--clr-success);
}
.kpi-trend.negative {
    background: var(--color-danger-light);
    color: var(--clr-danger);
}
.kpi-trend.neutral {
    background: var(--color-info-light);
    color: var(--clr-info);
}

.kpi-body {
    flex-grow: 1;
    margin-bottom: var(--space-5);
    position: relative; z-index: 3;
}

.kpi-title {
    font-size: 0.95rem;
    color: var(--clr-text-muted);
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.kpi-value {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--clr-text-main);
    letter-spacing: -1px;
    margin-bottom: var(--space-2);
    /* Gradient text effect */
    background: linear-gradient(135deg, var(--clr-text-main) 0%, var(--brand-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.kpi-desc {
    font-size: 0.85rem;
    color: var(--clr-text-muted);
    line-height: 1.5;
}

.kpi-footer {
    position: relative; z-index: 3;
}

/* Animations */
@keyframes spin {
    100% {
        transform: rotate(360deg);
    }
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    /* Completely hide sidebar and toggle elements to enforce modern UX */
    .sidebar, .sidebar-overlay, #sidebarToggle {
        display: none !important;
    }

    .main-wrapper {
        margin-inline-start: 0 !important; /* Full width */
        padding-bottom: 70px; /* Space for bottom nav */
    }

    .bottom-nav {
        display: flex;
    }
    
    .toast-container {
        bottom: 80px; /* Adjust toasts above navigation */
    }
}