/* =====================================================
   MODERN MATERIAL CRM - PROFESSIONAL & COLORFUL
   Material Design with multiple accent colors
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* =====================================================
   CRITICAL: OVERLAY DEFAULT STATES
   All overlays/modals MUST be hidden by default
   ===================================================== */
.sidebar-backdrop:not(.show),
.modal-overlay:not(.active),
.day-events-modal:not(.active),
.ai-chat-panel:not(.open),
.loading-overlay:not(.active):not(.visible) {
    display: none !important;
    visibility: hidden !important;
    pointer-events: none !important;
    opacity: 0 !important;
}

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

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

/* =====================================================
   MATERIAL DESIGN COLOR SYSTEM
   ===================================================== */
:root {
    /* Primary Colors - Purple Plasma Theme */
    --color-primary: #a855f7;      /* Purple */
    --color-success: #10b981;      /* Green */
    --color-warning: #f59e0b;      /* Amber */
    --color-danger: #ef4444;       /* Red */
    --color-info: #8b5cf6;         /* Violet */
    --color-purple: #c084fc;       /* Light Purple */
    --color-pink: #ec4899;         /* Pink */
    --color-teal: #14b8a6;         /* Teal */

    /* Elevation System (Material Design) */
    --elevation-1: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --elevation-2: 0 3px 6px rgba(0,0,0,0.15), 0 2px 4px rgba(0,0,0,0.12);
    --elevation-3: 0 10px 20px rgba(0,0,0,0.15), 0 3px 6px rgba(0,0,0,0.10);
    --elevation-4: 0 15px 25px rgba(0,0,0,0.15), 0 5px 10px rgba(0,0,0,0.05);
    --elevation-5: 0 20px 40px rgba(0,0,0,0.2);

    /* Spacing System */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme - Purple Plasma Enhanced */
body[class*="-dark"] {
    --bg-primary: #0f0820;
    --bg-secondary: #1a0f2e;
    --bg-tertiary: #24184a;
    --bg-elevated: #1d1035;
    --bg-card: rgba(26, 15, 46, 0.85);

    --text-primary: #f0e7ff;
    --text-secondary: #d4c5f9;
    --text-tertiary: #b8a1ed;
    --text-disabled: #8b7ab8;

    --border-color: rgba(139, 92, 246, 0.2);
    --border-color-hover: rgba(139, 92, 246, 0.4);

    --hover-bg: rgba(139, 92, 246, 0.15);
    --active-bg: rgba(139, 92, 246, 0.25);

    --glow-purple: rgba(168, 85, 247, 0.4);
    --glow-violet: rgba(124, 58, 237, 0.3);
}

/* Plasma Animation Background */
body[class*="-dark"]::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background:
        radial-gradient(circle at 20% 50%, rgba(168, 85, 247, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(147, 51, 234, 0.12) 0%, transparent 50%),
        linear-gradient(135deg, #0f0820 0%, #1a0f2e 100%);
    animation: plasma 15s ease-in-out infinite;
}

@keyframes plasma {
    0%, 100% {
        background:
            radial-gradient(circle at 20% 50%, rgba(168, 85, 247, 0.15) 0%, transparent 50%),
            radial-gradient(circle at 80% 80%, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
            radial-gradient(circle at 40% 20%, rgba(147, 51, 234, 0.12) 0%, transparent 50%),
            linear-gradient(135deg, #0f0820 0%, #1a0f2e 100%);
    }
    25% {
        background:
            radial-gradient(circle at 80% 30%, rgba(168, 85, 247, 0.18) 0%, transparent 50%),
            radial-gradient(circle at 20% 70%, rgba(124, 58, 237, 0.18) 0%, transparent 50%),
            radial-gradient(circle at 60% 60%, rgba(147, 51, 234, 0.15) 0%, transparent 50%),
            linear-gradient(135deg, #1a0f2e 0%, #24184a 100%);
    }
    50% {
        background:
            radial-gradient(circle at 70% 70%, rgba(168, 85, 247, 0.20) 0%, transparent 50%),
            radial-gradient(circle at 30% 30%, rgba(124, 58, 237, 0.20) 0%, transparent 50%),
            radial-gradient(circle at 50% 80%, rgba(147, 51, 234, 0.18) 0%, transparent 50%),
            linear-gradient(135deg, #24184a 0%, #1d1035 100%);
    }
    75% {
        background:
            radial-gradient(circle at 30% 80%, rgba(168, 85, 247, 0.18) 0%, transparent 50%),
            radial-gradient(circle at 70% 20%, rgba(124, 58, 237, 0.18) 0%, transparent 50%),
            radial-gradient(circle at 20% 40%, rgba(147, 51, 234, 0.15) 0%, transparent 50%),
            linear-gradient(135deg, #1d1035 0%, #0f0820 100%);
    }
}

/* Light Theme */
body[class*="-light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-elevated: #ffffff;
    --bg-card: #ffffff;

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --text-disabled: #94a3b8;

    --border-color: #e2e8f0;
    --border-color-hover: #cbd5e1;

    --hover-bg: #f8fafc;
    --active-bg: #f1f5f9;
}

/* =====================================================
   TYPOGRAPHY
   ===================================================== */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.9375rem;
    line-height: 1.65;
    color: var(--text-primary);
    background: linear-gradient(135deg, #0a0e1a 0%, #0d1127 50%, #0a0e1a 100%);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: 0.01em;
    position: relative;
    overflow-x: hidden;
    min-height: 100vh;
}

body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 50%, rgba(168, 85, 247, 0.6) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.5) 0%, transparent 50%),
                radial-gradient(circle at 40% 20%, rgba(167, 139, 250, 0.45) 0%, transparent 50%),
                radial-gradient(circle at 60% 70%, rgba(196, 181, 253, 0.4) 0%, transparent 50%);
    animation: plasmaMove 20s ease-in-out infinite;
    z-index: 10;
    pointer-events: none;
    mix-blend-mode: screen;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.25) 0%, transparent 70%);
    z-index: 9;
    pointer-events: none;
    animation: pulse 8s ease-in-out infinite;
    mix-blend-mode: screen;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.35;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

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

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

/* =====================================================
   SIDEBAR
   ===================================================== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    border-right: 1px solid rgba(168, 85, 247, 0.3);
    box-shadow: inset -1px 0 20px rgba(168, 85, 247, 0.1);
    z-index: 1000;
    overflow-y: auto;
    overflow-x: hidden;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.nav-menu {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--spacing-md) 0;
}

.nav-menu::-webkit-scrollbar {
    width: 6px;
}

.nav-menu::-webkit-scrollbar-track {
    background: transparent;
}

.nav-menu::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.nav-menu::-webkit-scrollbar-thumb:hover {
    background: var(--border-color-hover);
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--border-color-hover);
}

/* Collapsed Sidebar */
.sidebar.collapsed {
    width: 80px;
}

.sidebar.collapsed .sidebar-logo h1,
.sidebar.collapsed .nav-section-title,
.sidebar.collapsed .nav-link span,
.sidebar.collapsed .nav-badge {
    opacity: 0;
    visibility: hidden;
    width: 0;
    overflow: hidden;
}

.sidebar.collapsed .sidebar-logo {
    padding: 1.5rem 0.5rem;
}

.sidebar.collapsed .nav-link {
    justify-content: center;
    padding: 0.75rem;
}

.sidebar.collapsed .nav-link i {
    margin-right: 0;
    font-size: 1.25rem;
}

.sidebar.collapsed .nav-item {
    margin: 0.25rem 0.5rem;
}

/* Sidebar Logo */
.sidebar-logo {
    padding: var(--spacing-xl) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.sidebar-logo h1 {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

/* Navigation */
.nav-section-title {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-tertiary);
    padding: var(--spacing-md) var(--spacing-lg) var(--spacing-sm);
}

.nav-item {
    margin: 0.25rem var(--spacing-md);
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    background: var(--hover-bg);
    color: var(--color-primary);
    transform: translateX(2px);
}

.nav-link.active {
    background: var(--color-primary);
    color: white;
    font-weight: 600;
    box-shadow: 0 0 15px rgba(168, 85, 247, 0.4), var(--elevation-2);
}

.nav-link i {
    margin-right: 0.875rem;
    font-size: 1.1rem;
    min-width: 24px;
    text-align: center;
}

.nav-badge {
    margin-left: auto;
    background: var(--color-danger);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-full);
}

/* =====================================================
   MAIN CONTENT
   ===================================================== */
.main-content {
    margin-left: 280px;
    min-height: 100vh;
    background: transparent;
    transition: margin-left var(--transition-base);
    position: relative;
    z-index: 50;
}

.main-content.sidebar-collapsed {
    margin-left: 80px;
}

/* =====================================================
   TOPBAR
   ===================================================== */
.topbar {
    height: 72px;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-xl);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--elevation-1);
}

.topbar-left {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.menu-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    position: relative;
    z-index: 10;
}

.menu-toggle:hover {
    background: var(--hover-bg);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.menu-toggle:active {
    transform: scale(0.95);
}

.menu-toggle i {
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: all var(--transition-fast);
    pointer-events: none;
}

.menu-toggle:hover i {
    color: var(--color-primary);
}

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

.topbar-search i {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
}

.topbar-search input {
    width: 100%;
    padding: 0.75rem var(--spacing-md) 0.75rem 2.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.topbar-search input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.topbar-icon {
    position: relative;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.topbar-icon:hover {
    background: var(--hover-bg);
    border-color: var(--color-primary);
}

.topbar-icon i {
    color: var(--text-secondary);
    font-size: 1rem;
}

.topbar-icon:hover i {
    color: var(--color-primary);
}

.topbar-icon .badge {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 18px;
    height: 18px;
    background: var(--color-danger);
    border: 2px solid var(--bg-elevated);
    border-radius: 50%;
    font-size: 0.65rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
}

/* User Menu */
.user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.user-menu:hover {
    background: var(--hover-bg);
    border-color: var(--color-primary);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-purple) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.75rem;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

/* =====================================================
   PAGE CONTENT
   ===================================================== */
.page-content {
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
    min-height: calc(100vh - 72px);
    position: relative;
    z-index: 1;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    letter-spacing: -0.02em;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-top: var(--spacing-sm);
    line-height: 1.6;
}

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

/* =====================================================
   CARDS - UNIVERSAL DESIGN
   ===================================================== */
.card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--elevation-2);
    overflow: hidden;
    transition: all var(--transition-fast);
    margin-bottom: var(--spacing-lg);
}

.card + .card {
    margin-top: var(--spacing-lg);
}

.card:hover {
    box-shadow: var(--elevation-3);
    border-color: var(--border-color-hover);
}

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

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.card-subtitle {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
}

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

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

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

/* Responsive: 3 columns on tablets */
@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Responsive: 2 columns on small tablets */
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
}

/* Responsive: 1 column on mobile */
@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

.stat-card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--elevation-2);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

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

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--stat-color-start), var(--stat-color-end));
}

.stat-card.stat-primary {
    --stat-color-start: #6366f1;
    --stat-color-end: #8b5cf6;
}

.stat-card.stat-success {
    --stat-color-start: #10b981;
    --stat-color-end: #14b8a6;
}

.stat-card.stat-warning {
    --stat-color-start: #f59e0b;
    --stat-color-end: #ef4444;
}

.stat-card.stat-info {
    --stat-color-start: #3b82f6;
    --stat-color-end: #06b6d4;
}

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--spacing-md);
}

.stat-label {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    background: linear-gradient(135deg, var(--stat-color-start), var(--stat-color-end));
    color: white;
    box-shadow: var(--elevation-3);
    margin-bottom: var(--spacing-md);
}

.stat-value {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.stat-change {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
}

.stat-change.positive {
    color: var(--color-success);
    background: rgba(16, 185, 129, 0.1);
}

.stat-change.negative {
    color: var(--color-danger);
    background: rgba(239, 68, 68, 0.1);
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 0 20px rgba(168, 85, 247, 0.3), var(--elevation-1);
}

.btn-primary:hover:not(:disabled) {
    background: #9333ea;
    box-shadow: 0 0 30px rgba(168, 85, 247, 0.5), var(--elevation-2);
    transform: translateY(-1px);
}

.btn-success {
    background: var(--color-success);
    color: white;
    box-shadow: var(--elevation-1);
}

.btn-success:hover:not(:disabled) {
    background: #059669;
    box-shadow: var(--elevation-2);
    transform: translateY(-1px);
}

.btn-danger {
    background: var(--color-danger);
    color: white;
    box-shadow: var(--elevation-1);
}

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
    box-shadow: var(--elevation-2);
    transform: translateY(-1px);
}

.btn-warning {
    background: var(--color-warning);
    color: white;
    box-shadow: var(--elevation-1);
}

.btn-warning:hover:not(:disabled) {
    background: #d97706;
    box-shadow: var(--elevation-2);
    transform: translateY(-1px);
}

.btn-info {
    background: var(--color-info);
    color: white;
    box-shadow: var(--elevation-1);
}

.btn-info:hover:not(:disabled) {
    background: #2563eb;
    box-shadow: var(--elevation-2);
    transform: translateY(-1px);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--hover-bg);
    border-color: var(--border-color-hover);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

.btn-icon {
    padding: 0.625rem;
    width: 40px;
    height: 40px;
}

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

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-label.required::after {
    content: '*';
    color: var(--color-danger);
    margin-left: 0.25rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-control:disabled {
    background: var(--bg-tertiary);
    cursor: not-allowed;
    opacity: 0.6;
}

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

select.form-control {
    cursor: pointer;
}

.form-help {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
}

.form-error {
    font-size: 0.8125rem;
    color: var(--color-danger);
    margin-top: var(--spacing-xs);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.form-check-label {
    font-size: 0.875rem;
    color: var(--text-primary);
    cursor: pointer;
}

/* Form Rows & Filter Forms */
.form-row {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
    flex-wrap: wrap;
}

.form-row .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 200px;
}

.filter-form {
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.filter-form .form-row {
    margin-bottom: 0;
}

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

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

.table thead {
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--border-color);
}

.table th {
    padding: var(--spacing-lg);
    text-align: left;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.table td {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.9375rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    line-height: 1.5;
    vertical-align: middle;
}

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

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

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

/* Table Actions */
.table-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.action-btn {
    padding: 0.375rem 0.625rem;
    font-size: 0.875rem;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: transparent;
    color: var(--text-secondary);
}

.action-btn:hover {
    background: var(--hover-bg);
    color: var(--color-primary);
}

.action-btn.edit:hover {
    color: var(--color-info);
}

.action-btn.delete:hover {
    color: var(--color-danger);
}

/* Button Groups */
.btn-group {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.btn-group .btn {
    margin: 0;
}

.btn-group .btn + .btn {
    margin-left: 0;
}

/* =====================================================
   BADGES & LABELS
   ===================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.875rem;
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid transparent;
}

.badge-primary {
    background: rgba(99, 102, 241, 0.15);
    color: #818cf8;
    border-color: rgba(99, 102, 241, 0.3);
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    border-color: rgba(16, 185, 129, 0.3);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: #fbbf24;
    border-color: rgba(245, 158, 11, 0.3);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
    border-color: rgba(239, 68, 68, 0.3);
}

.badge-info {
    background: rgba(59, 130, 246, 0.15);
    color: #60a5fa;
    border-color: rgba(59, 130, 246, 0.3);
}

/* =====================================================
   ALERTS
   ===================================================== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid;
    display: flex;
    align-items: start;
    gap: var(--spacing-md);
    transition: all var(--transition-base);
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--color-success);
    color: var(--color-success);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--color-danger);
    color: var(--color-danger);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: var(--color-warning);
    color: var(--color-warning);
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--color-info);
    color: var(--color-info);
}

/* =====================================================
   THEME TOGGLE
   ===================================================== */
.theme-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--elevation-3);
    transition: all var(--transition-fast);
    z-index: 999;
}

.theme-toggle:hover {
    box-shadow: var(--elevation-4);
    transform: scale(1.05);
}

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

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-tertiary { color: var(--text-tertiary); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }
.text-info { color: var(--color-info); }

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

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

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }
.mb-6 { margin-bottom: var(--spacing-2xl); }

.my-0 { margin-top: 0; margin-bottom: 0; }
.my-1 { margin-top: var(--spacing-xs); margin-bottom: var(--spacing-xs); }
.my-2 { margin-top: var(--spacing-sm); margin-bottom: var(--spacing-sm); }
.my-3 { margin-top: var(--spacing-md); margin-bottom: var(--spacing-md); }
.my-4 { margin-top: var(--spacing-lg); margin-bottom: var(--spacing-lg); }
.my-5 { margin-top: var(--spacing-xl); margin-bottom: var(--spacing-xl); }
.my-6 { margin-top: var(--spacing-2xl); margin-bottom: var(--spacing-2xl); }

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

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

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

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */
@media (max-width: 1024px) {
    .page-content {
        padding: var(--spacing-lg);
    }

    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

/* Mobile sidebar backdrop */
.sidebar-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(2px);
    z-index: 1099;
    animation: fadeIn 0.2s ease;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

/* Sidebar header with close button for mobile */
.sidebar-header-mobile {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.sidebar-close-btn {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.4);
    border-radius: var(--radius-md);
    color: #ef4444;
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    z-index: 100;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.sidebar-close-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: #ef4444;
}

.sidebar-close-btn i {
    font-size: 1.25rem;
}

/* Prevent body scroll when sidebar is open on mobile */
body.sidebar-open {
    overflow: hidden;
}

@media (min-width: 769px) {
    body.sidebar-open {
        overflow: auto;
    }
}

@media (max-width: 1200px) {
    /* AGGRESSIVE overflow prevention - includes foldables like Samsung Z Fold */
    * {
        max-width: 100% !important;
    }

    html {
        overflow-x: hidden !important;
        width: 100vw !important;
    }

    body {
        overflow-x: hidden !important;
        width: 100vw !important;
        position: relative;
    }

    .sidebar {
        transform: translateX(-100%) !important;
        visibility: hidden !important;
        opacity: 0 !important;
        box-shadow: none !important;
        position: fixed !important;
        left: 0 !important;
        top: 0 !important;
        width: 280px !important;
        max-width: 85vw !important;
        height: 100vh !important;
        height: 100dvh !important; /* Dynamic viewport height for mobile browsers */
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch;
        background: var(--bg-secondary) !important;
        transition: transform 0.3s ease, visibility 0.3s ease, opacity 0.3s ease !important;
    }

    .sidebar.show {
        transform: translateX(0) !important;
        visibility: visible !important;
        opacity: 1 !important;
        z-index: 1100 !important;
        box-shadow: 4px 0 25px rgba(0, 0, 0, 0.5) !important;
    }

    .sidebar.show ~ .sidebar-backdrop,
    body.sidebar-open .sidebar-backdrop {
        display: block;
    }

    /* Show close button on mobile/tablet */
    .sidebar-close-btn {
        display: flex !important;
    }

    /* Sidebar logo adjustments for mobile */
    .sidebar-header-mobile {
        padding: var(--spacing-sm) var(--spacing-md) !important;
        position: sticky;
        top: 0;
        background: var(--bg-secondary);
        z-index: 10;
    }

    .sidebar-logo {
        flex: 1;
        min-width: 0;
    }

    .sidebar-logo h1 {
        font-size: 1rem !important;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .main-content {
        margin-left: 0 !important;
        width: 100vw !important;
        overflow-x: hidden !important;
    }

    .topbar {
        padding: 0.5rem !important;
        height: 60px !important;
        min-height: 60px !important;
        max-height: 60px !important;
        display: flex !important;
        flex-wrap: nowrap !important;
        gap: 0.5rem !important;
        width: 100vw !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
        align-items: center !important;
    }

    .topbar-left {
        flex: 0 0 auto !important;
        display: flex !important;
        align-items: center !important;
        gap: 0.5rem !important;
        min-width: 0 !important;
    }

    .topbar-right {
        flex: 1 !important;
        display: flex !important;
        align-items: center !important;
        gap: 0.375rem !important;
        flex-wrap: nowrap !important;
        justify-content: flex-end !important;
        min-width: 0 !important;
    }

    .topbar-search {
        display: none !important;
    }

    /* Hide text in Quick Task button on mobile, show icon only */
    .topbar-right .btn-primary span,
    .topbar-right .btn span {
        display: none !important;
    }

    .topbar-right .btn-primary,
    .topbar-right .btn {
        padding: 0.5rem !important;
        width: 36px !important;
        height: 36px !important;
        min-width: 36px !important;
        max-width: 36px !important;
        flex-shrink: 0 !important;
    }

    /* Hide company switcher on mobile completely */
    .company-switcher {
        display: none !important;
    }

    /* Hide notification icons on mobile to save space */
    .topbar-icon {
        display: none !important;
    }

    /* Compact user menu on mobile */
    .user-menu {
        padding: 0.375rem !important;
        gap: 0 !important;
        width: 36px !important;
        height: 36px !important;
        min-width: 36px !important;
        max-width: 36px !important;
        flex-shrink: 0 !important;
    }

    .user-info {
        display: none !important;
    }

    .user-menu i.fa-chevron-down {
        display: none !important;
    }

    .user-avatar {
        width: 28px !important;
        height: 28px !important;
        font-size: 0.7rem !important;
    }

    .menu-toggle {
        display: flex !important;
        flex-shrink: 0 !important;
        width: 44px !important;
        height: 44px !important;
        min-width: 44px !important;
        max-width: 44px !important;
        background: var(--color-primary) !important;
        border-color: var(--color-primary) !important;
        box-shadow: 0 2px 8px rgba(168, 85, 247, 0.4) !important;
    }

    .menu-toggle i {
        color: white !important;
        font-size: 1.5rem !important;
        font-weight: bold !important;
    }

    .page-content {
        padding: 0.75rem !important;
        width: 100vw !important;
        overflow-x: hidden !important;
        box-sizing: border-box !important;
    }

    .stats-grid {
        grid-template-columns: 1fr !important;
        gap: 0.75rem !important;
        width: 100% !important;
    }

    /* Ensure all cards fit within viewport */
    .card {
        width: 100% !important;
        box-sizing: border-box !important;
        overflow-x: hidden !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }

    .card-body,
    .card-header,
    .card-footer {
        overflow-x: hidden !important;
        box-sizing: border-box !important;
        width: 100% !important;
    }

    .page-header {
        flex-direction: column;
        align-items: start;
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
    }

    .page-title {
        font-size: 1.5rem;
    }

    .page-subtitle {
        font-size: 0.875rem;
    }

    .table-container {
        overflow-x: auto;
    }

    /* Dashboard specific responsive fixes */
    .card-body {
        padding: var(--spacing-md);
    }

    /* Fix grid layouts in dashboard */
    div[style*="grid-template-columns: repeat(auto-fit"] {
        grid-template-columns: 1fr !important;
    }

    div[style*="grid-template-columns: repeat(auto-fill"] {
        grid-template-columns: 1fr !important;
    }

    div[style*="grid-template-columns: 2fr 1fr"] {
        grid-template-columns: 1fr !important;
    }

    /* Make form rows stack on mobile */
    .form-row {
        flex-direction: column;
    }

    .form-row .form-group {
        min-width: 100%;
    }

    /* Stat cards more compact */
    .stat-card {
        padding: var(--spacing-md);
    }

    .stat-icon {
        width: 48px;
        height: 48px;
        font-size: 1.5rem;
    }

    .stat-value {
        font-size: 1.75rem;
    }

    .stat-label {
        font-size: 0.8125rem;
    }

    /* Responsive buttons */
    .btn-group {
        flex-wrap: wrap;
    }

    .btn-sm {
        font-size: 0.75rem;
        padding: 0.375rem 0.75rem;
    }
}

/* Extra responsive fixes for very small screens */
@media (max-width: 480px) {
    .topbar-right {
        gap: 0.25rem;
    }

    .topbar-icon {
        width: 36px;
        height: 36px;
    }

    .topbar-icon i {
        font-size: 0.875rem;
    }

    /* Hide empty notification badges on mobile */
    .topbar-icon .badge:empty {
        display: none;
    }

    .page-title {
        font-size: 1.25rem;
    }

    .page-subtitle {
        font-size: 0.8125rem;
    }

    .card-header {
        padding: var(--spacing-md);
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .card-title {
        font-size: 1rem;
    }

    /* Make tables more mobile friendly */
    .table th,
    .table td {
        padding: var(--spacing-sm);
        font-size: 0.8125rem;
    }

    /* Better modal on small screens */
    .modal-header,
    .modal-body,
    .modal-footer {
        padding: var(--spacing-sm);
    }

    /* Compact form controls */
    .form-control {
        padding: 0.625rem var(--spacing-sm);
        font-size: 0.8125rem;
    }

    .form-label {
        font-size: 0.8125rem;
    }

    /* Smaller stat cards */
    .stat-value {
        font-size: 1.5rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }

    /* Fix theme toggle position */
    .theme-toggle {
        bottom: 1rem;
        right: 1rem;
        width: 48px;
        height: 48px;
    }
}

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

.fade-in {
    animation: fadeIn var(--transition-base) ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in {
    animation: slideIn var(--transition-base) ease-out;
}

@keyframes plasmaMove {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(5%, -5%) rotate(5deg);
    }
    50% {
        transform: translate(-3%, 8%) rotate(-3deg);
    }
    75% {
        transform: translate(8%, 3%) rotate(8deg);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.1);
    }
}

/* =====================================================
   MODAL
   ===================================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s ease;
}

.modal-content {
    position: relative;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--elevation-5);
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
    border: 2px solid var(--border-color);
}

.modal-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-footer {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

.btn-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

/* Responsive modal */
@media (max-width: 768px) {
    .modal {
        padding: 0;
    }

    .modal-content {
        max-height: 100vh;
        border-radius: 0;
        width: 100% !important;
        max-width: 100% !important;
    }

    .modal-header,
    .modal-body,
    .modal-footer {
        padding: var(--spacing-md);
    }
}