/* ============================================================
   TAUFI — DESIGN SYSTEM & GLOBAL STYLES
   Digital Twin of Taufiq · Personal Operating System
   
   Color Palette: Dark Navy Sidebar + White Content + Indigo Accent
   Font: Inter (Google Fonts)
   
   Struktur:
   1. CSS Variables (Design Tokens)
   2. CSS Reset & Base
   3. Typography
   4. Layout (Sidebar + Main)
   5. Components (Cards, Badges, Buttons, Forms)
   6. Progress Bars
   7. Tables
   8. Alerts & Flash Messages
   9. Utilities
   10. Animations
   ============================================================ */

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

/* ============================================================
   1. CSS VARIABLES — DESIGN TOKENS
   ============================================================ */
:root {
    /* Primary — Indigo (sesuai ui-konsep.png) */
    --color-primary:       #6366F1;
    --color-primary-hover: #4F46E5;
    --color-primary-light: rgba(99, 102, 241, 0.1);
    --color-primary-mid:   rgba(99, 102, 241, 0.2);

    /* Background */
    --color-bg:            #F1F5F9;
    --color-surface:       #FFFFFF;
    --color-surface-2:     #F8FAFC;

    /* Text */
    --color-text-primary:  #0F172A;
    --color-text-secondary:#64748B;
    --color-text-muted:    #94A3B8;
    --color-text-inverse:  #FFFFFF;

    /* Border */
    --color-border:        #E2E8F0;
    --color-border-light:  #F1F5F9;

    /* Sidebar */
    --sidebar-bg:          #0F172A;
    --sidebar-text:        #94A3B8;
    --sidebar-active-bg:   rgba(99, 102, 241, 0.15);
    --sidebar-active-text: #818CF8;
    --sidebar-hover-bg:    rgba(255,255,255,0.05);
    --sidebar-border:      rgba(255,255,255,0.06);
    --sidebar-width:       240px;

    /* Status Colors */
    --color-success:       #22C55E;
    --color-success-light: rgba(34, 197, 94, 0.1);
    --color-warning:       #F59E0B;
    --color-warning-light: rgba(245, 158, 11, 0.1);
    --color-danger:        #EF4444;
    --color-danger-light:  rgba(239, 68, 68, 0.1);
    --color-info:          #3B82F6;
    --color-info-light:    rgba(59, 130, 246, 0.1);
    --color-purple:        #A855F7;
    --color-purple-light:  rgba(168, 85, 247, 0.1);

    /* Shadows */
    --shadow-xs:   0 1px 2px rgba(0,0,0,0.05);
    --shadow-sm:   0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md:   0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-lg:   0 10px 15px rgba(0,0,0,0.08), 0 4px 6px rgba(0,0,0,0.04);
    --shadow-xl:   0 20px 25px rgba(0,0,0,0.1), 0 10px 10px rgba(0,0,0,0.04);

    /* Spacing */
    --space-1:  4px;
    --space-2:  8px;
    --space-3:  12px;
    --space-4:  16px;
    --space-5:  20px;
    --space-6:  24px;
    --space-8:  32px;
    --space-10: 40px;
    --space-12: 48px;

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

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs:   11px;
    --font-size-sm:   12px;
    --font-size-base: 14px;
    --font-size-md:   15px;
    --font-size-lg:   16px;
    --font-size-xl:   18px;
    --font-size-2xl:  20px;
    --font-size-3xl:  24px;
    --font-size-4xl:  30px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* Header */
    --header-height: 60px;
    --content-padding: 28px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    background-color: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

img {
    max-width: 100%;
    display: block;
}

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

ul, ol {
    list-style: none;
}

/* ============================================================
   3. TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text-primary);
    letter-spacing: -0.01em;
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-md); }

.text-xs        { font-size: var(--font-size-xs); }
.text-sm        { font-size: var(--font-size-sm); }
.text-base      { font-size: var(--font-size-base); }
.text-md        { font-size: var(--font-size-md); }
.text-lg        { font-size: var(--font-size-lg); }
.text-xl        { font-size: var(--font-size-xl); }
.text-muted     { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }
.text-primary   { color: var(--color-primary); }
.text-success   { color: var(--color-success); }
.text-warning   { color: var(--color-warning); }
.text-danger    { color: var(--color-danger); }
.font-medium    { font-weight: 500; }
.font-semibold  { font-weight: 600; }
.font-bold      { font-weight: 700; }

/* ============================================================
   4. LAYOUT — APP SHELL
   ============================================================ */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

/* ---- SIDEBAR ---- */
.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
    overflow-y: auto;
    overflow-x: hidden;
    border-right: 1px solid var(--sidebar-border);
    transition: width var(--transition-slow);
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.1) transparent;
}

.sidebar::-webkit-scrollbar {
    width: 4px;
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-full);
}

/* Sidebar Brand */
.sidebar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-5) var(--space-5);
    border-bottom: 1px solid var(--sidebar-border);
    min-height: 72px;
}

.sidebar-logo {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #6366F1 0%, #8B5CF6 50%, #06B6D4 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: var(--font-size-lg);
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(99,102,241,0.4);
}

.sidebar-brand-text {
    display: flex;
    flex-direction: column;
}

.sidebar-brand-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.sidebar-brand-sub {
    font-size: 10px;
    color: var(--sidebar-text);
    font-weight: 400;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

/* Sidebar User */
.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-user-avatar {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-full);
    object-fit: cover;
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

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

.sidebar-user-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: #E2E8F0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-status {
    font-size: var(--font-size-xs);
    color: var(--color-success);
    display: flex;
    align-items: center;
    gap: 4px;
}

.sidebar-user-status::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-success);
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.4; }
}

/* Sidebar Time Widget */
.sidebar-time {
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-time-clock {
    font-size: 22px;
    font-weight: 700;
    color: #E2E8F0;
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
}

.sidebar-time-date {
    font-size: var(--font-size-xs);
    color: var(--sidebar-text);
    margin-top: 2px;
}

/* Sidebar Navigation */
.sidebar-nav {
    padding: var(--space-3) 0;
    flex: 1;
}

.sidebar-nav-section {
    padding: var(--space-4) var(--space-5) var(--space-2);
}

.sidebar-nav-label {
    font-size: 10px;
    font-weight: 600;
    color: rgba(148, 163, 184, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 9px var(--space-5);
    color: var(--sidebar-text);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
    border-radius: 0;
    position: relative;
    cursor: pointer;
}

.sidebar-nav-item:hover {
    background: var(--sidebar-hover-bg);
    color: #CBD5E1;
}

.sidebar-nav-item.active {
    background: var(--sidebar-active-bg);
    color: var(--sidebar-active-text);
}

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

.sidebar-nav-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    opacity: 0.7;
}

.sidebar-nav-item.active .sidebar-nav-icon,
.sidebar-nav-item:hover .sidebar-nav-icon {
    opacity: 1;
}

.sidebar-nav-badge {
    margin-left: auto;
    background: var(--color-primary);
    color: white;
    font-size: 10px;
    font-weight: 600;
    padding: 1px 6px;
    border-radius: var(--radius-full);
    min-width: 18px;
    text-align: center;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--sidebar-border);
}

.sidebar-footer a {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--sidebar-text);
    font-size: var(--font-size-sm);
    padding: 8px 0;
    transition: color var(--transition-fast);
}

.sidebar-footer a:hover {
    color: #CBD5E1;
}

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

/* ---- HEADER ---- */
.app-header {
    height: var(--header-height);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    padding: 0 var(--content-padding);
    position: sticky;
    top: 0;
    z-index: 50;
    gap: var(--space-4);
}

.header-title {
    display: flex;
    flex-direction: column;
}

.header-title h1 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    line-height: 1.2;
}

.header-title p {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.header-search {
    flex: 1;
    max-width: 400px;
    margin-left: auto;
    position: relative;
}

.header-search input {
    width: 100%;
    height: 36px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 0 var(--space-4) 0 36px;
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
    outline: none;
}

.header-search input::placeholder {
    color: var(--color-text-muted);
}

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

.header-search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.header-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

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

.header-quick-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding-left: var(--space-4);
    border-left: 1px solid var(--color-border);
}

/* ---- PAGE CONTENT ---- */
.page-content {
    flex: 1;
    padding: var(--content-padding);
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
}

.page-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.page-header p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: 2px;
}

/* ============================================================
   5. COMPONENTS — CARDS
   ============================================================ */
.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow var(--transition-base);
}

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

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

.card-title {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.card-subtitle {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: 2px;
}

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

.card-footer {
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--color-border-light);
    background: var(--color-surface-2);
}

/* Stat Card (Dashboard Widget) */
.stat-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    transition: all var(--transition-base);
    cursor: default;
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.stat-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-card-icon.indigo  { background: var(--color-primary-light); color: var(--color-primary); }
.stat-card-icon.green   { background: var(--color-success-light); color: var(--color-success); }
.stat-card-icon.amber   { background: var(--color-warning-light); color: var(--color-warning); }
.stat-card-icon.red     { background: var(--color-danger-light);  color: var(--color-danger); }
.stat-card-icon.blue    { background: var(--color-info-light);    color: var(--color-info); }
.stat-card-icon.purple  { background: var(--color-purple-light);  color: var(--color-purple); }

.stat-card-info {
    flex: 1;
    min-width: 0;
}

.stat-card-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text-primary);
    line-height: 1;
    letter-spacing: -0.02em;
}

.stat-card-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: 4px;
    font-weight: 500;
}

.stat-card-sub {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: 2px;
}

/* ============================================================
   6. COMPONENTS — BUTTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    font-family: inherit;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1;
    height: 36px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    box-shadow: 0 1px 3px rgba(99,102,241,0.3);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    box-shadow: 0 4px 12px rgba(99,102,241,0.4);
    transform: translateY(-1px);
    color: white;
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg);
    border-color: #CBD5E1;
}

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

.btn-success:hover {
    background: #16A34A;
    border-color: #16A34A;
    color: white;
}

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

.btn-danger:hover {
    background: #DC2626;
    border-color: #DC2626;
    color: white;
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    border-color: transparent;
}

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

.btn-sm {
    height: 30px;
    padding: 5px 12px;
    font-size: var(--font-size-xs);
}

.btn-lg {
    height: 44px;
    padding: 10px 24px;
    font-size: var(--font-size-md);
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-md);
}

/* ============================================================
   7. COMPONENTS — BADGES
   ============================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.01em;
    white-space: nowrap;
}

.badge-success   { background: var(--color-success-light);  color: #15803D; }
.badge-warning   { background: var(--color-warning-light);  color: #B45309; }
.badge-danger    { background: var(--color-danger-light);   color: #B91C1C; }
.badge-primary   { background: var(--color-primary-light);  color: var(--color-primary-hover); }
.badge-info      { background: var(--color-info-light);     color: #1D4ED8; }
.badge-secondary { background: var(--color-border);         color: var(--color-text-secondary); }
.badge-purple    { background: var(--color-purple-light);   color: #7E22CE; }

/* Status dot badge */
.badge::before {
    content: none;
}

.badge.has-dot::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: currentColor;
}

/* ============================================================
   8. COMPONENTS — FORMS
   ============================================================ */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

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

.form-control {
    display: block;
    width: 100%;
    height: 40px;
    padding: 0 var(--space-3);
    font-size: var(--font-size-sm);
    font-family: inherit;
    color: var(--color-text-primary);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    outline: none;
    transition: all var(--transition-fast);
    appearance: none;
}

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

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

.form-control:disabled {
    background: var(--color-bg);
    color: var(--color-text-muted);
    cursor: not-allowed;
}

textarea.form-control {
    height: auto;
    padding: var(--space-3);
    resize: vertical;
    min-height: 100px;
    line-height: 1.6;
}

select.form-control {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.form-hint {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: var(--space-1);
}

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

/* ============================================================
   9. COMPONENTS — PROGRESS BARS
   ============================================================ */
.progress-wrap {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.progress-bar-container {
    flex: 1;
    height: 6px;
    background: var(--color-border-light);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 0.6s ease;
}

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

.progress-label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-text-secondary);
    min-width: 30px;
    text-align: right;
}

/* ============================================================
   10. COMPONENTS — TABLES
   ============================================================ */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.table thead th {
    padding: 12px var(--space-4);
    text-align: left;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--color-surface-2);
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
}

.table tbody td {
    padding: 14px var(--space-4);
    color: var(--color-text-primary);
    border-bottom: 1px solid var(--color-border-light);
    vertical-align: middle;
}

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

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

.table tbody tr:hover {
    background: var(--color-surface-2);
}

/* ============================================================
   11. COMPONENTS — ALERTS / FLASH MESSAGES
   ============================================================ */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-4);
    border: 1px solid transparent;
    animation: slide-down 0.3s ease;
}

@keyframes slide-down {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.alert-success {
    background: var(--color-success-light);
    border-color: rgba(34, 197, 94, 0.2);
    color: #15803D;
}

.alert-danger, .alert-error {
    background: var(--color-danger-light);
    border-color: rgba(239, 68, 68, 0.2);
    color: #B91C1C;
}

.alert-warning {
    background: var(--color-warning-light);
    border-color: rgba(245, 158, 11, 0.2);
    color: #B45309;
}

.alert-info {
    background: var(--color-info-light);
    border-color: rgba(59, 130, 246, 0.2);
    color: #1D4ED8;
}

/* ============================================================
   12. GRID SYSTEM (simple)
   ============================================================ */
.grid {
    display: grid;
    gap: var(--space-5);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
.grid-cols-6 { grid-template-columns: repeat(6, 1fr); }

.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }

/* ============================================================
   13. UTILITY CLASSES
   ============================================================ */
.flex         { display: flex; }
.flex-col     { flex-direction: column; }
.flex-wrap    { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start  { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center  { justify-content: center; }
.justify-end     { justify-content: flex-end; }
.gap-1  { gap: var(--space-1); }
.gap-2  { gap: var(--space-2); }
.gap-3  { gap: var(--space-3); }
.gap-4  { gap: var(--space-4); }
.gap-5  { gap: var(--space-5); }
.gap-6  { gap: var(--space-6); }
.flex-1 { flex: 1; }
.w-full { width: 100%; }
.min-w-0 { min-width: 0; }

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-6 { margin-top: var(--space-6); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }
.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }

.p-0 { padding: 0; }
.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.py-2 { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.py-3 { padding-top: var(--space-3); padding-bottom: var(--space-3); }

.rounded    { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

.overflow-hidden { overflow: hidden; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cursor-pointer { cursor: pointer; }

.border-t { border-top: 1px solid var(--color-border); }
.border-b { border-bottom: 1px solid var(--color-border); }

.divider {
    height: 1px;
    background: var(--color-border);
    margin: var(--space-5) 0;
}

.empty-state {
    text-align: center;
    padding: var(--space-12) var(--space-5);
    color: var(--color-text-muted);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: var(--space-4);
    opacity: 0.3;
}

.empty-state h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.empty-state p {
    font-size: var(--font-size-sm);
    max-width: 320px;
    margin: 0 auto var(--space-5);
}

/* ============================================================
   14. LOADING SKELETON
   ============================================================ */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-border-light) 25%,
        var(--color-border)       50%,
        var(--color-border-light) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-shine 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeleton-shine {
    0%   { background-position: 200% center; }
    100% { background-position: -200% center; }
}

/* ============================================================
   15. SCROLLBAR GLOBAL
   ============================================================ */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: #CBD5E1;
}

/* ============================================================
   16. RESPONSIVE (Mobile)
   ============================================================ */
@media (max-width: 1024px) {
    :root {
        --sidebar-width: 200px;
        --content-padding: 20px;
    }
}

@media (max-width: 768px) {
    /* Sidebar Offcanvas */
    .sidebar {
        transform: translateX(-100%);
        box-shadow: var(--shadow-xl);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-overlay {
        display: block;
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(15, 23, 42, 0.6);
        backdrop-filter: blur(2px);
        z-index: 90;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s ease;
    }

    .sidebar-overlay.active {
        opacity: 1;
        pointer-events: auto;
    }

    .main-content {
        margin-left: 0;
    }

    /* Header Adjustments */
    #btn-mobile-menu {
        display: flex !important;
    }
    
    .header-quick-actions {
        display: none !important;
    }

    .header-search {
        display: none; /* Sembunyikan search bar di header mobile, bisa diganti tombol search icon */
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }

    /* Grids & Columns Fallback */
    .grid-cols-4 { grid-template-columns: repeat(2, 1fr) !important; }
    .grid-cols-3 { grid-template-columns: 1fr !important; }
    .grid-cols-2 { grid-template-columns: 1fr !important; }
    .col-span-2 { grid-column: span 1 !important; }
    
    /* Override inline styles for any grid containing pixel values (like 280px or 300px sidebar grids) */
    .grid[style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
    }
}

@media (max-width: 480px) {
    .grid-cols-4 { grid-template-columns: 1fr !important; }
    .stat-card-value { font-size: var(--font-size-2xl); }
}

/* ============================================================
   17. MICRO-ANIMATIONS
   ============================================================ */
.fade-in {
    animation: fade-in 0.3s ease;
}

@keyframes fade-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.slide-up {
    animation: slide-up 0.3s ease;
}

@keyframes slide-up {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Smooth hover for interactive elements */
.interactive {
    transition: all var(--transition-base);
}

.interactive:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}