/* =====================================================
   IT HELPDESK — Premium Design System v2.0
   Font: Inter (Google Fonts) + JetBrains Mono
   Aesthetic: Modern SaaS / Glassmorphism / Depth
   ===================================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@500;600&display=swap');

/* =====================================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ===================================================== */
:root {
    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Layout */
    --sidebar-width: 264px;
    --topbar-height: 64px;

    /* === LIGHT THEME === */
    --bg-primary: #f0f4f8;
    --bg-surface: #ffffff;
    --bg-surface-elevated: #ffffff;
    --bg-muted: #f1f5f9;
    --bg-subtle: #e2e8f0;
    --bg-glass: rgba(255, 255, 255, 0.75);

    --border-subtle: #e2e8f0;
    --border-medium: #cbd5e1;
    --border-highlight: #94a3b8;

    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-subtle: #94a3b8;

    /* Brand Palette */
    --brand-primary: #4f46e5;
    --brand-primary-hover: #4338ca;
    --brand-primary-light: rgba(79, 70, 229, 0.08);
    --brand-primary-glow: rgba(79, 70, 229, 0.25);

    --brand-cyan: #0284c7;
    --brand-cyan-light: rgba(2, 132, 199, 0.1);

    --brand-emerald: #10b981;
    --brand-emerald-hover: #059669;
    --brand-emerald-light: rgba(16, 185, 129, 0.1);

    --brand-amber: #f59e0b;
    --brand-amber-light: rgba(245, 158, 11, 0.1);

    --brand-rose: #ef4444;
    --brand-rose-light: rgba(239, 68, 68, 0.1);

    --brand-purple: #8b5cf6;
    --brand-purple-light: rgba(139, 92, 246, 0.1);

    /* Gradient tokens */
    --gradient-brand: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #2563eb 100%);
    --gradient-surface: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    --gradient-hero: linear-gradient(135deg, rgba(79, 70, 229, 0.06) 0%, rgba(124, 58, 237, 0.04) 50%, rgba(37, 99, 235, 0.06) 100%);
    --gradient-sidebar: linear-gradient(180deg, #ffffff 0%, #fafbff 100%);

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --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 25px -5px rgba(0, 0, 0, 0.1), 0 4px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 40px -10px rgba(0, 0, 0, 0.12), 0 8px 16px -8px rgba(0, 0, 0, 0.06);
    --shadow-brand: 0 8px 20px -4px rgba(79, 70, 229, 0.35);
    --shadow-glow: 0 0 0 3px rgba(79, 70, 229, 0.12), 0 0 20px rgba(79, 70, 229, 0.08);

    /* Radius */
    --radius-xs: 6px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.12s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === DARK THEME === */
[data-theme="dark"] {
    --bg-primary: #080e1a;
    --bg-surface: #101828;
    --bg-surface-elevated: #1a2540;
    --bg-muted: #1a2540;
    --bg-subtle: #253050;
    --bg-glass: rgba(16, 24, 40, 0.8);

    --border-subtle: #1e2d47;
    --border-medium: #253050;
    --border-highlight: #3b4f6d;

    --text-main: #f1f5f9;
    --text-muted: #8baac6;
    --text-subtle: #4d6a8a;

    --brand-primary: #6366f1;
    --brand-primary-hover: #4f46e5;
    --brand-primary-light: rgba(99, 102, 241, 0.15);
    --brand-primary-glow: rgba(99, 102, 241, 0.3);

    --brand-cyan: #38bdf8;
    --brand-cyan-light: rgba(56, 189, 248, 0.12);

    --brand-emerald: #34d399;
    --brand-emerald-hover: #10b981;
    --brand-emerald-light: rgba(52, 211, 153, 0.12);

    --brand-amber: #fbbf24;
    --brand-amber-light: rgba(251, 191, 36, 0.12);

    --brand-rose: #f87171;
    --brand-rose-light: rgba(248, 113, 113, 0.12);

    --brand-purple: #a78bfa;
    --brand-purple-light: rgba(167, 139, 250, 0.12);

    --gradient-brand: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #3b82f6 100%);
    --gradient-surface: linear-gradient(135deg, #101828 0%, #0d1520 100%);
    --gradient-hero: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.07) 50%, rgba(59, 130, 246, 0.08) 100%);
    --gradient-sidebar: linear-gradient(180deg, #101828 0%, #0d1520 100%);

    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.5), 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.6), 0 4px 10px -5px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 40px -10px rgba(0, 0, 0, 0.7), 0 8px 16px -8px rgba(0, 0, 0, 0.5);
    --shadow-brand: 0 8px 20px -4px rgba(99, 102, 241, 0.45);
    --shadow-glow: 0 0 0 3px rgba(99, 102, 241, 0.2), 0 0 24px rgba(99, 102, 241, 0.12);
}

/* =====================================================
   BASE RESET & GLOBAL STYLES
   ===================================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-main);
    line-height: 1.6;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-slow), color var(--transition-slow);
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: var(--font-main); }

/* =====================================================
   ANIMATIONS & KEYFRAMES
   ===================================================== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes slideInRight {
    from { opacity: 0; transform: translateX(20px); }
    to   { opacity: 1; transform: translateX(0); }
}
@keyframes slideInDown {
    from { opacity: 0; transform: translateY(-12px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse-ring {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 var(--brand-primary-glow); }
    70% { transform: scale(1); box-shadow: 0 0 0 8px transparent; }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 transparent; }
}
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}
@keyframes countUp {
    from { transform: translateY(6px); opacity: 0; }
    to   { transform: translateY(0); opacity: 1; }
}
@keyframes alertSlideIn {
    from { opacity: 0; transform: translateX(20px) scale(0.97); }
    to   { opacity: 1; transform: translateX(0) scale(1); }
}
@keyframes progressBar {
    from { width: 100%; }
    to   { width: 0%; }
}
@keyframes spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}
@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Animation utilities */
.animate-fade-up    { animation: fadeInUp var(--transition-slow) both; }
.animate-fade-in    { animation: fadeIn var(--transition-base) both; }
.animate-slide-down { animation: slideInDown var(--transition-base) both; }

/* Stagger helpers */
.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; }

/* Skeleton loader */
.skeleton {
    background: linear-gradient(90deg, var(--bg-muted) 25%, var(--bg-subtle) 50%, var(--bg-muted) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

/* =====================================================
   LAYOUT
   ===================================================== */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* =====================================================
   SIDEBAR
   ===================================================== */
.app-sidebar {
    width: var(--sidebar-width);
    background: var(--gradient-sidebar);
    border-right: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 40;
    transition: transform var(--transition-slow);
    overflow: hidden;
}

/* Subtle gradient overlay on sidebar */
.app-sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(180deg, var(--brand-primary-light) 0%, transparent 100%);
    pointer-events: none;
}

.sidebar-header {
    padding: 20px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-subtle);
    position: relative;
}

.brand-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--gradient-brand);
    background-size: 200% 200%;
    animation: gradientShift 4s ease infinite;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    box-shadow: var(--shadow-brand);
    flex-shrink: 0;
}

.brand-title {
    font-size: 0.92rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-main);
    line-height: 1.2;
}

.brand-subtitle {
    font-size: 0.68rem;
    font-weight: 500;
    color: var(--text-subtle);
    letter-spacing: 0.01em;
}

.sidebar-nav {
    flex: 1;
    padding: 14px 10px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2px;
    scrollbar-width: thin;
    scrollbar-color: var(--border-subtle) transparent;
}

.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: var(--border-medium); border-radius: 4px; }

.nav-section-title {
    font-size: 0.64rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-subtle);
    padding: 14px 12px 5px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 9px 12px;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.84rem;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%) scaleY(0);
    width: 3px;
    height: 60%;
    background: var(--gradient-brand);
    border-radius: 0 3px 3px 0;
    transition: transform var(--transition-fast);
}

.nav-item:hover {
    color: var(--text-main);
    background-color: var(--brand-primary-light);
}

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

.nav-item.active::before {
    transform: translateY(-50%) scaleY(1);
}

[data-theme="dark"] .nav-item.active {
    color: #fff;
    background: rgba(99, 102, 241, 0.2);
}

[data-theme="dark"] .nav-item:hover {
    color: #fff;
    background: rgba(99, 102, 241, 0.12);
}

/* Sidebar Expandable Nav Group */
.nav-group {}

.nav-group-toggle {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 9px 12px;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.84rem;
    cursor: pointer;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    transition: all var(--transition-fast);
    position: relative;
    font-family: var(--font-main);
}

.nav-group-toggle:hover {
    color: var(--text-main);
    background-color: var(--brand-primary-light);
}

.nav-group-toggle.active {
    color: var(--brand-primary);
    font-weight: 700;
}

[data-theme="dark"] .nav-group-toggle.active {
    color: #c7d2fe;
}

.nav-group-toggle .nav-group-chevron {
    margin-left: auto;
    width: 14px;
    height: 14px;
    transition: transform 0.2s ease;
    flex-shrink: 0;
    opacity: 0.5;
}

.nav-group.open .nav-group-toggle .nav-group-chevron {
    transform: rotate(90deg);
}

.nav-group-children {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
    padding-left: 14px;
}

.nav-group.open .nav-group-children {
    max-height: 300px;
}

.nav-group-children .nav-item {
    font-size: 0.8rem;
    padding: 7px 12px 7px 16px;
    gap: 9px;
    border-radius: var(--radius-sm);
}

.nav-group-children .nav-item::before {
    display: none;
}

.nav-group-children .nav-item i {
    width: 14px !important;
    height: 14px !important;
}
.sidebar-footer {
    padding: 14px;
    border-top: 1px solid var(--border-subtle);
}

.user-profile-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    background: var(--bg-muted);
    border: 1px solid var(--border-subtle);
    transition: all var(--transition-fast);
}

.user-profile-card:hover {
    background: var(--brand-primary-light);
    border-color: var(--brand-primary);
}

.user-avatar {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--gradient-brand);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.78rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-brand);
}

/* =====================================================
   MAIN CONTENT
   ===================================================== */
.app-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* =====================================================
   TOPBAR
   ===================================================== */
.app-topbar {
    height: var(--topbar-height);
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 30;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* =====================================================
   HEADER SUB-NAV BAR & PILLS
   ===================================================== */
.header-subnav-bar {
    position: sticky;
    top: var(--topbar-height);
    z-index: 25;
    background: var(--bg-surface);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.subnav-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 0.76rem;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--bg-muted);
    border: 1px solid var(--border-subtle);
    text-decoration: none;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.subnav-pill:hover {
    color: var(--text-main);
    background: var(--brand-primary-light);
    border-color: var(--brand-primary);
}

.subnav-pill.active {
    color: #ffffff;
    background: var(--brand-primary);
    border-color: var(--brand-primary);
    font-weight: 700;
    box-shadow: 0 2px 6px rgba(79, 70, 229, 0.25);
}

[data-theme="dark"] .subnav-pill.active {
    background: var(--brand-primary);
    color: #ffffff;
}

.header-subitem:hover {
    background: var(--brand-primary-light);
}

.header-subitem.active {
    background: var(--brand-primary-light);
    border-left: 3px solid var(--brand-primary);
}

/* =====================================================
   PAGE CONTAINER
   ===================================================== */
.page-container {
    flex: 1;
    padding: 24px 28px;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    animation: fadeInUp 0.35s ease both;
}

/* =====================================================
   CARDS
   ===================================================== */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
}

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

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.card-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.01em;
}

.card-body { padding: 20px; }

/* Glass card variant */
.card-glass {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

/* =====================================================
   ACTION HERO CARDS (Dashboard)
   ===================================================== */
.action-hero-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
    color: var(--text-main);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.action-hero-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-brand);
    transform: scaleX(0);
    transition: transform var(--transition-base);
    transform-origin: left;
}

.action-hero-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--brand-primary);
}

.action-hero-card:hover::after {
    transform: scaleX(1);
}

.action-hero-icon {
    width: 48px;
    height: 48px;
    border-radius: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.action-hero-card:hover .action-hero-icon {
    transform: scale(1.08);
}

/* =====================================================
   STAT CARDS
   ===================================================== */
.stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, var(--brand-primary-light) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(20px, -20px);
    pointer-events: none;
}

.stat-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    border-color: var(--brand-primary);
}

.stat-icon-wrapper {
    width: 40px;
    height: 40px;
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    animation: countUp 0.5s ease both;
}

.stat-label {
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* =====================================================
   BADGES
   ===================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 9px;
    border-radius: var(--radius-full);
    font-size: 0.71rem;
    font-weight: 600;
    border: 1px solid transparent;
    letter-spacing: 0.01em;
    white-space: nowrap;
}

.badge-primary   { background: var(--brand-primary-light); color: var(--brand-primary); border-color: rgba(79,70,229,0.2); }
.badge-critical  { background: var(--brand-rose-light);    color: var(--brand-rose);    border-color: rgba(239,68,68,0.2); }
.badge-high      { background: var(--brand-amber-light);   color: var(--brand-amber);   border-color: rgba(245,158,11,0.2); }
.badge-medium    { background: var(--brand-cyan-light);    color: var(--brand-cyan);    border-color: rgba(2,132,199,0.2); }
.badge-low       { background: var(--brand-emerald-light); color: var(--brand-emerald); border-color: rgba(16,185,129,0.2); }

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 0.82rem;
    font-weight: 600;
    font-family: var(--font-main);
    text-decoration: none;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition-fast);
    white-space: nowrap;
    letter-spacing: 0.01em;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0);
    transition: background var(--transition-fast);
}

.btn:active { transform: scale(0.97); }

.btn-sm  { padding: 5px 11px; font-size: 0.76rem; border-radius: var(--radius-sm); }
.btn-lg  { padding: 11px 22px; font-size: 0.9rem;  border-radius: var(--radius-lg); }

.btn-primary {
    background: var(--gradient-brand);
    background-size: 200% 200%;
    color: #ffffff;
    box-shadow: var(--shadow-brand);
    animation: gradientShift 5s ease infinite;
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 24px -6px var(--brand-primary-glow);
}

.btn-secondary {
    background: var(--bg-muted);
    color: var(--text-main);
    border-color: var(--border-subtle);
}
.btn-secondary:hover {
    background: var(--bg-subtle);
    border-color: var(--border-medium);
}

.btn-success {
    background: var(--brand-emerald);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}
.btn-success:hover { background: var(--brand-emerald-hover); transform: translateY(-1px); }

.btn-danger {
    background: var(--brand-rose);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}
.btn-danger:hover { background: #dc2626; transform: translateY(-1px); }

.btn-outline {
    background: transparent;
    border-color: var(--border-medium);
    color: var(--text-main);
}
.btn-outline:hover {
    background: var(--bg-muted);
    border-color: var(--brand-primary);
    color: var(--brand-primary);
}

/* Loading spinner in button */
.btn-loading { pointer-events: none; opacity: 0.75; }
.btn-loading::before {
    content: '';
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    margin-right: 4px;
    display: inline-block;
}

/* =====================================================
   FORMS & INPUTS
   ===================================================== */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
}

.form-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-main);
    letter-spacing: 0.01em;
}

.form-hint {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.form-control,
.form-select,
textarea,
select {
    width: 100%;
    padding: 9px 13px;
    border-radius: var(--radius-md);
    background-color: var(--bg-surface);
    border: 1.5px solid var(--border-medium);
    color: var(--text-main);
    font-family: var(--font-main);
    font-size: 0.85rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.form-control:focus,
.form-select:focus,
textarea:focus,
select:focus {
    border-color: var(--brand-primary);
    box-shadow: var(--shadow-glow);
    background-color: var(--bg-surface);
}

.form-control.is-invalid,
select.is-invalid,
textarea.is-invalid {
    border-color: var(--brand-rose);
    box-shadow: 0 0 0 3px var(--brand-rose-light);
}

textarea { resize: vertical; min-height: 96px; line-height: 1.6; }

/* Input with icon prefix */
.input-icon-wrap {
    position: relative;
}
.input-icon-wrap .input-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-subtle);
    pointer-events: none;
    transition: color var(--transition-fast);
}
.input-icon-wrap:focus-within .input-icon {
    color: var(--brand-primary);
}
.input-icon-wrap .form-control {
    padding-left: 38px;
}

/* =====================================================
   TABLES
   ===================================================== */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--radius-md);
}

.data-table,
.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.82rem;
}

.data-table th,
.table th {
    padding: 11px 16px;
    font-size: 0.67rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    background: var(--bg-muted);
    border-bottom: 2px solid var(--border-subtle);
    white-space: nowrap;
}

.data-table th:first-child,
.table th:first-child { border-radius: var(--radius-sm) 0 0 0; }

.data-table th:last-child,
.table th:last-child { border-radius: 0 var(--radius-sm) 0 0; }

.data-table td,
.table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-main);
    vertical-align: middle;
}

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

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

.data-table tbody tr:nth-child(even),
.table tbody tr:nth-child(even) {
    background: rgba(0, 0, 0, 0.012);
}

[data-theme="dark"] .data-table tbody tr:nth-child(even),
[data-theme="dark"] .table tbody tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.025);
}

.data-table tbody tr:hover td,
.table tbody tr:hover td {
    background: var(--brand-primary-light);
}

/* =====================================================
   TIMELINE
   ===================================================== */
.timeline {
    position: relative;
    padding-left: 28px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 6px;
    bottom: 6px;
    left: 9px;
    width: 2px;
    background: linear-gradient(180deg, var(--brand-primary) 0%, var(--border-medium) 100%);
    border-radius: 2px;
}

.timeline-item { position: relative; }

.timeline-marker {
    position: absolute;
    left: -28px;
    top: 3px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--bg-surface);
    border: 2.5px solid var(--brand-primary);
    box-shadow: 0 0 0 3px var(--brand-primary-light);
}

.timeline-content {
    background: var(--bg-muted);
    padding: 12px 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
}

/* =====================================================
   ALERTS (Flash Messages)
   ===================================================== */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 0.83rem;
    font-weight: 500;
    display: flex;
    align-items: flex-start;
    gap: 11px;
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
    animation: alertSlideIn 0.3s ease both;
    box-shadow: var(--shadow-md);
}

/* Auto-dismiss progress bar */
.alert::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    background: currentColor;
    opacity: 0.3;
}

.alert.auto-dismiss::after {
    animation: progressBar 5s linear forwards;
}

.alert-success {
    background: var(--brand-emerald-light);
    color: var(--brand-emerald);
    border: 1px solid rgba(16, 185, 129, 0.25);
}

.alert-error {
    background: var(--brand-rose-light);
    color: var(--brand-rose);
    border: 1px solid rgba(239, 68, 68, 0.25);
}

.alert-info {
    background: var(--brand-cyan-light);
    color: var(--brand-cyan);
    border: 1px solid rgba(2, 132, 199, 0.25);
}

.alert-warning {
    background: var(--brand-amber-light);
    color: var(--brand-amber);
    border: 1px solid rgba(245, 158, 11, 0.25);
}

.alert-dismiss-btn {
    margin-left: auto;
    background: none;
    border: none;
    cursor: pointer;
    color: inherit;
    opacity: 0.6;
    padding: 0;
    display: flex;
    flex-shrink: 0;
    transition: opacity var(--transition-fast);
}
.alert-dismiss-btn:hover { opacity: 1; }

/* =====================================================
   GRID UTILITIES
   ===================================================== */
.grid { display: grid; }
.grid-cols-1  { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2  { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3  { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4  { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

.col-span-12 { grid-column: span 12 / span 12; }
.col-span-8  { grid-column: span 8 / span 8; }
.col-span-7  { grid-column: span 7 / span 7; }
.col-span-6  { grid-column: span 6 / span 6; }
.col-span-5  { grid-column: span 5 / span 5; }
.col-span-4  { grid-column: span 4 / span 4; }
.col-span-3  { grid-column: span 3 / span 3; }

.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.gap-8 { gap: 32px; }

/* =====================================================
   TEXT UTILITIES
   ===================================================== */
.text-gradient {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% 200%;
    animation: gradientShift 4s ease infinite;
}

/* =====================================================
   RESPONSIVE BREAKPOINTS
   ===================================================== */
@media (min-width: 1025px) {
    .lg\:col-span-12 { grid-column: span 12 / span 12; }
    .lg\:col-span-8  { grid-column: span 8 / span 8; }
    .lg\:col-span-7  { grid-column: span 7 / span 7; }
    .lg\:col-span-6  { grid-column: span 6 / span 6; }
    .lg\:col-span-5  { grid-column: span 5 / span 5; }
    .lg\:col-span-4  { grid-column: span 4 / span 4; }
    .lg\:col-span-3  { grid-column: span 3 / span 3; }
}

@media (max-width: 1024px) {
    .app-sidebar {
        transform: translateX(-100%);
        z-index: 100;
        box-shadow: var(--shadow-xl);
    }
    .app-sidebar.open { transform: translateX(0); }
    .app-main { margin-left: 0 !important; width: 100% !important; }
    .page-container { padding: 18px 16px; }
    .grid-cols-4  { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grid-cols-3  { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grid-cols-12 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
    .col-span-12, .col-span-8, .col-span-7, .col-span-6, .col-span-5, .col-span-4, .col-span-3,
    .lg\:col-span-12, .lg\:col-span-8, .lg\:col-span-7, .lg\:col-span-6, .lg\:col-span-5, .lg\:col-span-4, .lg\:col-span-3 {
        grid-column: span 1 / span 1 !important;
    }
    .card[style*="grid-column: span 2"],
    div[style*="grid-column: span 2"],
    .card[style*="grid-column: span 3"],
    div[style*="grid-column: span 3"] {
        grid-column: span 2 !important;
    }
}

@media (max-width: 768px) {
    .page-container { padding: 14px 12px; }
    .grid-cols-2, .grid-cols-3, .grid-cols-4, .grid-cols-12 {
        grid-template-columns: repeat(1, minmax(0, 1fr)) !important;
    }
    .card[style*="grid-column: span 2"],
    div[style*="grid-column: span 2"],
    .card[style*="grid-column: span 3"],
    div[style*="grid-column: span 3"] {
        grid-column: span 1 !important;
    }
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .card-header > div:last-child,
    .card-header > a.btn,
    .card-header > button.btn {
        width: 100%;
        justify-content: center;
    }
    .stat-value { font-size: 1.5rem; }
    .topbar-actions { gap: 6px; }
}

@media (max-width: 640px) {
    .app-topbar { padding: 0 10px; height: 54px; }
    .app-topbar h2 {
        font-size: 0.84rem !important;
        max-width: 120px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .header-menu-label { display: none; }
    .header-subnav-bar {
        padding: 6px 12px;
        gap: 6px;
    }
    .subnav-pill {
        padding: 4px 9px;
        font-size: 0.7rem;
    }
    #sidebarToggle { display: inline-flex !important; }
    .card-body { padding: 14px !important; }
    .data-table th, .table th,
    .data-table td, .table td { padding: 9px 12px; }
    .btn { padding: 7px 12px; font-size: 0.78rem; }
    .btn-sm { padding: 4px 9px; font-size: 0.72rem; }
    .form-control, .form-select, textarea, select { font-size: 0.82rem; padding: 8px 11px; }
    #whatsappModal .card, #singleVisitWaModal .card, #addActivityModal .card, #quickAddModal .card {
        max-height: 94vh !important;
        margin: 6px !important;
        width: 100% !important;
    }
}