/* ===================================================
   حصبات - ISP Tower Management System
   Complete Design System & Styles
   =================================================== */

/* ── CSS Custom Properties (Theme Variables) ── */
:root {
    /* Primary Colors */
    --primary: #3b82f6;
    --primary-dark: #1d4ed8;
    --primary-light: #60a5fa;
    --primary-50: rgba(59, 130, 246, 0.1);
    --primary-100: rgba(59, 130, 246, 0.15);

    /* Accent */
    --accent: #06b6d4;
    --accent-dark: #0891b2;
    --accent-light: #22d3ee;

    /* Semantic Colors */
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --danger: #f43f5e;
    --danger-bg: rgba(244, 63, 94, 0.1);
    --info: #8b5cf6;
    --info-bg: rgba(139, 92, 246, 0.1);

    /* Light Theme */
    --bg-primary: #f0f4f8;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-hover: #f8fafc;
    --bg-sidebar: #ffffff;
    --bg-header: rgba(255, 255, 255, 0.85);
    --bg-input: #f1f5f9;
    --bg-input-focus: #ffffff;

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    --text-inverse: #ffffff;

    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    --border-focus: var(--primary);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.15);

    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.3);

    /* Sizing */
    --sidebar-width: 280px;
    --sidebar-collapsed: 80px;
    --header-height: 70px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 50%;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Font */
    --font-family: 'Cairo', sans-serif;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #0b1121;
    --bg-secondary: #111827;
    --bg-tertiary: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #253348;
    --bg-sidebar: #111827;
    --bg-header: rgba(17, 24, 39, 0.9);
    --bg-input: #1e293b;
    --bg-input-focus: #253348;

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-tertiary: #64748b;
    --text-inverse: #0f172a;

    --border-color: #1e293b;
    --border-light: #253348;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 30px rgba(59, 130, 246, 0.2);

    --glass-bg: rgba(17, 24, 39, 0.7);
    --glass-border: rgba(30, 41, 59, 0.5);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    direction: rtl;
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--text-tertiary);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

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

.hidden {
    display: none !important;
}

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

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

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

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes gradientMove {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes countUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.4s ease forwards;
}

.animate-fade-in-up {
    animation: fadeInUp 0.5s ease forwards;
}

.animate-scale-in {
    animation: scaleIn 0.3s ease forwards;
}

/* Staggered animation delays */
.stagger-1 { animation-delay: 0.05s; }
.stagger-2 { animation-delay: 0.1s; }
.stagger-3 { animation-delay: 0.15s; }
.stagger-4 { animation-delay: 0.2s; }
.stagger-5 { animation-delay: 0.25s; }
.stagger-6 { animation-delay: 0.3s; }

/* ── LOGIN PAGE ── */
.login-page {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.login-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0b1121 0%, #1a1f4e 30%, #0d2145 60%, #0b1121 100%);
    background-size: 400% 400%;
    animation: gradientMove 15s ease infinite;
}

.login-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
}

.login-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.login-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 440px;
    padding: 20px;
}

.login-card {
    background: rgba(17, 24, 39, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: var(--radius-xl);
    padding: 40px 36px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4),
                0 0 100px rgba(59, 130, 246, 0.05);
    animation: fadeInUp 0.6s ease;
}

.login-logo {
    text-align: center;
    margin-bottom: 36px;
}

.logo-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: white;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
    animation: float 3s ease-in-out infinite;
}

.login-logo h1 {
    font-size: 2rem;
    font-weight: 800;
    color: #f1f5f9;
    margin-bottom: 4px;
    letter-spacing: -0.5px;
}

.login-logo p {
    color: #94a3b8;
    font-size: 0.9rem;
}

.login-card .form-group {
    margin-bottom: 20px;
}

.login-card label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #cbd5e1;
}

.login-card .input-wrapper {
    position: relative;
}

.login-card .input-wrapper i {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: #64748b;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.login-card .input-wrapper input {
    width: 100%;
    padding: 12px 42px 12px 16px;
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid rgba(51, 65, 85, 0.5);
    border-radius: var(--radius-md);
    color: #f1f5f9;
    font-family: var(--font-family);
    font-size: 0.95rem;
    transition: all var(--transition-base);
    outline: none;
}

.login-card .input-wrapper input:focus {
    border-color: var(--primary);
    background: rgba(30, 41, 59, 0.8);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.login-card .input-wrapper input:focus + i,
.login-card .input-wrapper input:focus ~ i {
    color: var(--primary);
}

.login-card .input-wrapper input::placeholder {
    color: #475569;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    color: #94a3b8;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid #475569;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: var(--primary);
    border-color: var(--primary);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.forgot-link {
    font-size: 0.85rem;
    color: var(--primary-light) !important;
}

.error-message {
    margin-top: 16px;
    padding: 12px;
    background: var(--danger-bg);
    border: 1px solid rgba(244, 63, 94, 0.2);
    border-radius: var(--radius-sm);
    color: var(--danger);
    font-size: 0.85rem;
    text-align: center;
}

.demo-accounts {
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid rgba(51, 65, 85, 0.4);
}

.demo-accounts p {
    text-align: center;
    color: #64748b;
    font-size: 0.8rem;
    margin-bottom: 12px;
}

.demo-list {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.demo-btn {
    padding: 8px 14px;
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(51, 65, 85, 0.4);
    border-radius: var(--radius-sm);
    color: #94a3b8;
    font-family: var(--font-family);
    font-size: 0.78rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 6px;
}

.demo-btn:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.3);
    color: var(--primary-light);
}

/* ── BUTTONS ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    outline: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn:hover::before {
    opacity: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, var(--success), #059669);
    color: white;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger), #e11d48);
    color: white;
    box-shadow: 0 4px 12px rgba(244, 63, 94, 0.3);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(244, 63, 94, 0.4);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning), #d97706);
    color: white;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.btn-ghost {
    background: var(--bg-input);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-ghost:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: var(--radius-sm);
}

.btn-icon.btn-sm {
    width: 32px;
    height: 32px;
}

/* ── SIDEBAR ── */
.app-shell {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    position: fixed;
    top: 0;
    right: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-sidebar);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: all var(--transition-base);
    overflow: hidden;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    min-height: 70px;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon-sm {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    flex-shrink: 0;
}

.logo-text {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-primary);
    transition: opacity var(--transition-fast);
}

.sidebar.collapsed .logo-text {
    opacity: 0;
    width: 0;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
    background: var(--bg-input);
    color: var(--text-primary);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
}

.nav-section {
    margin-bottom: 8px;
}

.nav-section-title {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-tertiary);
    padding: 8px 12px;
    letter-spacing: 0.5px;
}

.sidebar.collapsed .nav-section-title {
    display: none;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: 2px;
    font-size: 0.9rem;
    font-weight: 500;
    position: relative;
    text-decoration: none;
}

.nav-item:hover {
    background: var(--primary-50);
    color: var(--primary);
}

.nav-item.active {
    background: var(--primary-50);
    color: var(--primary);
    font-weight: 600;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--primary);
    border-radius: 0 3px 3px 0;
}

.nav-item i {
    width: 22px;
    text-align: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.nav-item span {
    transition: opacity var(--transition-fast);
}

.sidebar.collapsed .nav-item span {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 12px;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
}

.user-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px;
    border-radius: var(--radius-md);
    background: var(--bg-input);
}

.user-avatar {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.user-info {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.user-name {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    display: block;
    font-size: 0.72rem;
    color: var(--text-tertiary);
}

.sidebar.collapsed .user-info,
.sidebar.collapsed .logout-btn {
    display: none;
}

.logout-btn {
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.logout-btn:hover {
    color: var(--danger);
    background: var(--danger-bg);
}

/* Sidebar Overlay (mobile) */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
    backdrop-filter: blur(4px);
}

.sidebar-overlay.active {
    display: block;
}

/* ── MAIN CONTENT ── */
.main-content {
    flex: 1;
    margin-right: var(--sidebar-width);
    min-height: 100vh;
    transition: margin var(--transition-base);
    display: flex;
    flex-direction: column;
}

.sidebar.collapsed ~ .main-content {
    margin-right: var(--sidebar-collapsed);
}

/* ── TOP HEADER ── */
.top-header {
    position: sticky;
    top: 0;
    background: var(--bg-header);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 0 28px;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 50;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.mobile-menu-btn:hover {
    background: var(--bg-input);
}

.search-box {
    position: relative;
    max-width: 400px;
    flex: 1;
}

.search-box i {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

.search-box input {
    width: 100%;
    padding: 10px 40px 10px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 0.88rem;
    outline: none;
    transition: all var(--transition-base);
}

.search-box input:focus {
    background: var(--bg-input-focus);
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-50);
}

.search-box input::placeholder {
    color: var(--text-tertiary);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: all var(--transition-base);
}

.theme-toggle:hover {
    background: var(--bg-input);
    color: var(--warning);
    transform: rotate(15deg);
}

.notifications-wrapper {
    position: relative;
}

.notif-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    position: relative;
    transition: all var(--transition-fast);
}

.notif-btn:hover {
    background: var(--bg-input);
    color: var(--text-primary);
}

.notif-badge {
    position: absolute;
    top: 4px;
    left: 4px;
    background: var(--danger);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--bg-header);
}

.notif-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    width: 360px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    z-index: 200;
    animation: fadeIn 0.2s ease;
}

.notif-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.notif-header h4 {
    font-size: 0.95rem;
    font-weight: 700;
}

.notif-header button {
    background: none;
    border: none;
    color: var(--primary);
    font-family: var(--font-family);
    font-size: 0.8rem;
    cursor: pointer;
}

.notif-list {
    max-height: 360px;
    overflow-y: auto;
}

.notif-item {
    display: flex;
    gap: 12px;
    padding: 14px 20px;
    cursor: pointer;
    transition: background var(--transition-fast);
    border-bottom: 1px solid var(--border-light);
}

.notif-item:hover {
    background: var(--bg-card-hover);
}

.notif-item.unread {
    background: var(--primary-50);
}

.notif-icon {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.85rem;
}

.notif-icon.info { background: var(--info-bg); color: var(--info); }
.notif-icon.success { background: var(--success-bg); color: var(--success); }
.notif-icon.warning { background: var(--warning-bg); color: var(--warning); }
.notif-icon.danger { background: var(--danger-bg); color: var(--danger); }

.notif-text {
    flex: 1;
    min-width: 0;
}

.notif-text p {
    font-size: 0.85rem;
    color: var(--text-primary);
    line-height: 1.5;
}

.notif-text .notif-time {
    font-size: 0.72rem;
    color: var(--text-tertiary);
    margin-top: 4px;
}

/* ── PAGE CONTENT ── */
.page-content {
    padding: 28px;
    flex: 1;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-header-info h1 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.page-header-info p {
    color: var(--text-secondary);
    font-size: 0.88rem;
}

.page-header-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* ── CARDS ── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

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

.card-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-light);
}

.card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    margin-top: 2px;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.4s ease backwards;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 3px;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.stat-card.primary::before { background: linear-gradient(90deg, var(--primary), var(--accent)); }
.stat-card.success::before { background: linear-gradient(90deg, var(--success), #34d399); }
.stat-card.warning::before { background: linear-gradient(90deg, var(--warning), #fbbf24); }
.stat-card.danger::before { background: linear-gradient(90deg, var(--danger), #fb7185); }
.stat-card.info::before { background: linear-gradient(90deg, var(--info), #a78bfa); }

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-info h3 {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 8px;
    animation: countUp 0.5s ease backwards;
}

.stat-change {
    font-size: 0.78rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
}

.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }

.stat-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.stat-icon.primary { background: var(--primary-50); color: var(--primary); }
.stat-icon.success { background: var(--success-bg); color: var(--success); }
.stat-icon.warning { background: var(--warning-bg); color: var(--warning); }
.stat-icon.danger { background: var(--danger-bg); color: var(--danger); }
.stat-icon.info { background: var(--info-bg); color: var(--info); }

/* ── GRID LAYOUTS ── */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

/* ── DATA TABLE ── */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.data-table thead {
    background: var(--bg-tertiary);
}

.data-table th {
    padding: 14px 18px;
    text-align: right;
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--text-secondary);
    white-space: nowrap;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
    vertical-align: middle;
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

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

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

/* Table toolbar */
.table-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    gap: 12px;
    flex-wrap: wrap;
}

.table-toolbar .search-input {
    position: relative;
    min-width: 250px;
}

.table-toolbar .search-input i {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

.table-toolbar .search-input input {
    width: 100%;
    padding: 8px 36px 8px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 0.85rem;
    outline: none;
    transition: all var(--transition-fast);
}

.table-toolbar .search-input input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-50);
}

.table-toolbar-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* Filter Select */
.filter-select {
    padding: 8px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 0.85rem;
    cursor: pointer;
    outline: none;
    transition: all var(--transition-fast);
    min-width: 140px;
}

.filter-select:focus {
    border-color: var(--primary);
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-top: 1px solid var(--border-light);
    flex-wrap: wrap;
    gap: 12px;
}

.pagination-info {
    font-size: 0.82rem;
    color: var(--text-tertiary);
}

.pagination-buttons {
    display: flex;
    gap: 4px;
}

.pagination-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-family);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pagination-btn:hover {
    background: var(--primary-50);
    color: var(--primary);
    border-color: var(--primary);
}

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

/* ── BADGES ── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-info { background: var(--info-bg); color: var(--info); }
.badge-primary { background: var(--primary-50); color: var(--primary); }
.badge-neutral {
    background: var(--bg-input);
    color: var(--text-secondary);
}

/* ── FORMS ── */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group label .required {
    color: var(--danger);
    margin-right: 2px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 0.9rem;
    outline: none;
    transition: all var(--transition-base);
}

.form-control:focus {
    border-color: var(--primary);
    background: var(--bg-input-focus);
    box-shadow: 0 0 0 3px var(--primary-50);
}

.form-control::placeholder {
    color: var(--text-tertiary);
}

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

select.form-control {
    cursor: pointer;
}

/* ── MODAL ── */
.modal-container {
    position: fixed;
    inset: 0;
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 580px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: scaleIn 0.25s ease;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 28px 0;
}

.modal-header h2 {
    font-size: 1.2rem;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-input);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px 28px;
}

.modal-footer {
    display: flex;
    justify-content: flex-start;
    gap: 10px;
    padding: 0 28px 24px;
}

/* ── TOAST ── */
.toast-container {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    max-width: 420px;
    animation: slideInLeft 0.3s ease;
    position: relative;
    overflow: hidden;
}

.toast::before {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
    animation: shrink 3s linear forwards;
}

@keyframes shrink {
    from { width: 100%; }
    to { width: 0%; }
}

.toast.success::before { background: var(--success); }
.toast.danger::before { background: var(--danger); }
.toast.warning::before { background: var(--warning); }

.toast-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.9rem;
}

.toast.success .toast-icon { background: var(--success-bg); color: var(--success); }
.toast.danger .toast-icon { background: var(--danger-bg); color: var(--danger); }
.toast.warning .toast-icon { background: var(--warning-bg); color: var(--warning); }
.toast.info .toast-icon { background: var(--info-bg); color: var(--info); }

.toast-body {
    flex: 1;
}

.toast-body .toast-title {
    font-weight: 700;
    font-size: 0.88rem;
    color: var(--text-primary);
}

.toast-body .toast-message {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 4px;
    font-size: 0.85rem;
}

/* ── CHART CONTAINER ── */
.chart-container {
    position: relative;
    width: 100%;
    height: 320px;
}

.chart-container canvas {
    width: 100% !important;
    height: 100% !important;
}

/* ── EMPTY STATE ── */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state i {
    font-size: 3.5rem;
    color: var(--text-tertiary);
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--text-tertiary);
    font-size: 0.88rem;
    margin-bottom: 20px;
}

/* ── ACTIVITY LIST ── */
.activity-list {
    display: flex;
    flex-direction: column;
}

.activity-item {
    display: flex;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border-light);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-dot {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    margin-top: 6px;
    flex-shrink: 0;
}

.activity-dot.primary { background: var(--primary); }
.activity-dot.success { background: var(--success); }
.activity-dot.warning { background: var(--warning); }
.activity-dot.danger { background: var(--danger); }

.activity-text {
    flex: 1;
}

.activity-text p {
    font-size: 0.88rem;
    color: var(--text-primary);
}

.activity-text .activity-time {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-top: 4px;
}

/* ── SUBSCRIBER INFO CARD ── */
.info-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.9rem;
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.info-value {
    color: var(--text-primary);
    font-weight: 600;
}

/* ── PROGRESS BAR ── */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-input);
    border-radius: 50px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: 50px;
    transition: width 0.6s ease;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.progress-fill.success { background: linear-gradient(90deg, var(--success), #34d399); }
.progress-fill.warning { background: linear-gradient(90deg, var(--warning), #fbbf24); }
.progress-fill.danger { background: linear-gradient(90deg, var(--danger), #fb7185); }

/* ── TABS ── */
.tabs {
    display: flex;
    gap: 4px;
    background: var(--bg-input);
    padding: 4px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.tab-btn {
    padding: 8px 20px;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-family);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--bg-card);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

/* ── QUICK ACTIONS ── */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
}

.quick-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
}

.quick-action:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.quick-action i {
    font-size: 1.5rem;
    color: var(--primary);
}

.quick-action span {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
}

/* ── MOBILE NAV ── */
.mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    display: none;
    align-items: center;
    justify-content: space-around;
    padding: 8px 0 calc(8px + env(safe-area-inset-bottom));
    z-index: 100;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.05);
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    color: var(--text-tertiary);
    font-size: 0.68rem;
    font-weight: 600;
    cursor: pointer;
    transition: color var(--transition-fast);
    background: none;
    border: none;
    font-family: var(--font-family);
}

.mobile-nav-item i {
    font-size: 1.2rem;
}

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

/* ── SUBSCRIPTION PLAN CARDS ── */
.plan-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.plan-card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 32px 24px;
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
}

.plan-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.plan-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.plan-card.featured::before {
    content: 'الأكثر شعبية';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 16px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    font-size: 0.72rem;
    font-weight: 700;
    border-radius: 50px;
    white-space: nowrap;
}

.plan-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.plan-price {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 4px;
}

.plan-price span {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.plan-features {
    list-style: none;
    margin: 24px 0;
    text-align: right;
}

.plan-features li {
    padding: 8px 0;
    font-size: 0.88rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.plan-features li i {
    color: var(--success);
    font-size: 0.8rem;
}

/* ── SKELETON LOADING ── */
.skeleton {
    background: linear-gradient(90deg, var(--bg-input) 25%, var(--bg-card-hover) 50%, var(--bg-input) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

.skeleton-text {
    height: 14px;
    margin-bottom: 10px;
    width: 100%;
}

.skeleton-text:last-child {
    width: 70%;
}

.skeleton-circle {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
}

.skeleton-card {
    height: 120px;
}

/* ── RESPONSIVE ── */
@media (max-width: 1200px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(100%);
        box-shadow: none;
    }
    
    .sidebar.mobile-open {
        transform: translateX(0);
        box-shadow: var(--shadow-xl);
    }
    
    .sidebar-overlay.active {
        display: block;
    }

    .main-content {
        margin-right: 0 !important;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-nav {
        display: flex !important;
    }

    .page-content {
        padding: 20px 16px;
        padding-bottom: calc(80px + env(safe-area-inset-bottom));
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .stat-card {
        padding: 16px;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .stat-icon {
        width: 42px;
        height: 42px;
        font-size: 1rem;
    }

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

    .form-grid {
        grid-template-columns: 1fr;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .page-header-actions {
        width: 100%;
    }

    .top-header {
        padding: 0 16px;
    }

    .search-box {
        max-width: none;
    }

    .table-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .table-toolbar .search-input {
        min-width: auto;
    }

    .notif-dropdown {
        width: calc(100vw - 40px);
        right: -40px;
    }

    .modal-content {
        max-width: 100%;
        margin: 10px;
        max-height: 90vh;
    }

    .toast-container {
        left: 10px;
        right: 10px;
    }

    .toast {
        min-width: auto;
        max-width: 100%;
    }

    .plan-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .login-card {
        padding: 28px 20px;
    }

    .page-header-info h1 {
        font-size: 1.3rem;
    }

    .tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
    }

    .tab-btn {
        white-space: nowrap;
        flex-shrink: 0;
    }

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

    .pagination {
        flex-direction: column;
        text-align: center;
    }
}

/* ── PRINT ── */
@media print {
    .sidebar, .top-header, .mobile-nav, .toast-container {
        display: none !important;
    }
    
    .main-content {
        margin: 0 !important;
    }
    
    .page-content {
        padding: 0;
    }
}

/* ── RTL Specific Adjustments ── */
[dir="rtl"] .fa-arrow-left::before {
    content: "\f060";
}

[dir="rtl"] .fa-arrow-right::before {
    content: "\f061";
}

/* Debt card special */
.debt-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.debt-amount {
    text-align: center;
    padding: 20px;
    border-radius: var(--radius-lg);
}

.debt-amount.total {
    background: var(--danger-bg);
    border: 1px solid rgba(244, 63, 94, 0.2);
}

.debt-amount.paid {
    background: var(--success-bg);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.debt-amount.pending {
    background: var(--warning-bg);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.debt-amount h4 {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.debt-amount .amount {
    font-size: 1.6rem;
    font-weight: 800;
}

.debt-amount.total .amount { color: var(--danger); }
.debt-amount.paid .amount { color: var(--success); }
.debt-amount.pending .amount { color: var(--warning); }

/* Tower card */
.tower-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all var(--transition-base);
    cursor: pointer;
}

.tower-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.tower-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.tower-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.tower-card-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
}

.tower-stat {
    text-align: center;
}

.tower-stat .value {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.tower-stat .label {
    font-size: 0.72rem;
    color: var(--text-tertiary);
    margin-top: 2px;
}

/* Dropdown menu */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 180px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 50;
    animation: fadeIn 0.15s ease;
    overflow: hidden;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    background: none;
    width: 100%;
    font-family: var(--font-family);
    text-align: right;
}

.dropdown-item:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

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

.dropdown-item.danger:hover {
    background: var(--danger-bg);
}

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

/* Settings page */
.settings-section {
    margin-bottom: 32px;
}

.settings-section h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-light);
}

.setting-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    border-bottom: 1px solid var(--border-light);
}

.setting-row:last-child {
    border-bottom: none;
}

.setting-info h4 {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.setting-info p {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    width: 48px;
    height: 26px;
    cursor: pointer;
}

.toggle-switch input {
    display: none;
}

.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    transition: all var(--transition-base);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: var(--radius-full);
    background: white;
    top: 2px;
    right: 2px;
    transition: transform var(--transition-base);
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--primary);
    border-color: var(--primary);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(-22px);
}

/* Loading spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto;
}

.loading-overlay {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 40px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ── CHAT SYSTEM ── */
.chat-layout {
    display: flex;
    height: calc(100vh - var(--header-height) - 56px);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.chat-sidebar {
    width: 340px;
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    background: var(--bg-card);
}

.chat-sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.chat-contacts-list {
    flex: 1;
    overflow-y: auto;
}

.chat-contact {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-bottom: 1px solid var(--border-light);
}

.chat-contact:hover {
    background: var(--bg-card-hover);
}

.chat-contact.active {
    background: var(--primary-50);
    border-right: 3px solid var(--primary);
}

.chat-contact-avatar {
    width: 46px;
    height: 46px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
    flex-shrink: 0;
    position: relative;
}

.chat-contact-avatar.owner {
    background: linear-gradient(135deg, var(--success), #34d399);
}

.online-dot {
    position: absolute;
    bottom: 2px;
    left: 2px;
    width: 10px;
    height: 10px;
    background: var(--success);
    border: 2px solid var(--bg-card);
    border-radius: var(--radius-full);
}

.chat-contact-info {
    flex: 1;
    min-width: 0;
}

.chat-contact-name {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.chat-contact-name span:first-child {
    font-weight: 700;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-time {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    flex-shrink: 0;
}

.chat-contact-preview {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-tertiary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-unread {
    background: var(--primary);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    width: 20px;
    height: 20px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-right: 6px;
}

.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-tertiary);
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
}

.chat-back-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 4px;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.chat-message {
    display: flex;
    max-width: 75%;
}

.chat-message.sent {
    align-self: flex-start;
}

.chat-message.received {
    align-self: flex-end;
}

.chat-bubble {
    padding: 10px 16px;
    border-radius: 16px;
    font-size: 0.9rem;
    line-height: 1.6;
    position: relative;
    animation: fadeIn 0.2s ease;
}

.chat-message.sent .chat-bubble {
    background: var(--primary);
    color: white;
    border-bottom-right: 4px;
    border-radius: 16px 16px 4px 16px;
}

.chat-message.received .chat-bubble {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px 16px 16px 4px;
}

.chat-msg-time {
    display: block;
    font-size: 0.68rem;
    margin-top: 4px;
    opacity: 0.7;
    text-align: left;
}

.chat-message.received .chat-msg-time {
    color: var(--text-tertiary);
    text-align: right;
}

.chat-input-area {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 20px;
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
}

.chat-input {
    flex: 1;
    padding: 10px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 0.9rem;
    outline: none;
    transition: all var(--transition-fast);
}

.chat-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-50);
}

.chat-input::placeholder {
    color: var(--text-tertiary);
}

@media (max-width: 768px) {
    .chat-layout {
        height: calc(100vh - var(--header-height) - 120px);
    }

    .chat-sidebar {
        width: 100%;
    }

    .chat-main {
        display: none;
    }

    .chat-layout.chat-open .chat-sidebar {
        display: none;
    }

    .chat-layout.chat-open .chat-main {
        display: flex;
    }

    .chat-back-btn {
        display: block;
    }

    .chat-message {
        max-width: 85%;
    }
}