/* ===== CSS Custom Properties ===== */
:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: rgba(30, 41, 59, 0.7);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --bg-glass-hover: rgba(255, 255, 255, 0.08);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(99, 102, 241, 0.4);

    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;

    --accent-indigo: #6366f1;
    --accent-indigo-light: #818cf8;
    --accent-cyan: #06b6d4;
    --accent-emerald: #10b981;
    --accent-rose: #f43f5e;
    --accent-amber: #f59e0b;

    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    --gradient-warm: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
    --gradient-dark: linear-gradient(180deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));

    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.25);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;

    --transition-fast: 0.15s ease;
    --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

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

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* ===== Background Animation ===== */
body::before,
body::after {
    content: '';
    position: fixed;
    width: 60vw;
    height: 60vw;
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    opacity: 0.25;
    animation: flow 20s infinite alternate cubic-bezier(0.4, 0, 0.2, 1);
}

body::before {
    top: -10vw;
    left: -10vw;
    background: radial-gradient(circle, var(--accent-indigo), transparent 70%);
}

body::after {
    bottom: -10vw;
    right: -10vw;
    background: radial-gradient(circle, var(--accent-cyan), transparent 70%);
    animation-delay: -10s;
}

@keyframes flow {
    0% {
        transform: translate(0, 0) scale(1);
    }

    50% {
        transform: translate(5%, 10%) scale(1.1);
    }

    100% {
        transform: translate(-5%, 5%) scale(0.95);
    }
}

/* ===== Layout ===== */
.app-container {
    display: flex;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* ===== Sidebar ===== */
.sidebar {
    width: 280px;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-right: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: transform var(--transition-smooth);
}

.sidebar-header {
    padding: 32px 24px 24px;
    border-bottom: 1px solid var(--border-glass);
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.02), transparent);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 14px;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
    color: white;
}

.logo-text h1 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.logo-text span {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-weight: 500;
    opacity: 0.7;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 14px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    overflow-y: auto;
}

.nav-section-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    padding: 20px 14px 10px;
    font-weight: 700;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.nav-item:hover {
    background: var(--bg-glass-hover);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.05);
    transform: translateX(4px);
}

.nav-item.active {
    background: rgba(99, 102, 241, 0.12);
    color: var(--text-primary);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.1);
}

.nav-item.active .nav-icon {
    color: var(--accent-indigo-light);
    transform: scale(1.1);
}

.nav-icon {
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
    transition: transform 0.2s ease;
    color: var(--text-muted);
}

.nav-badge {
    margin-left: auto;
    background: var(--bg-glass);
    color: var(--text-primary);
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 600;
    border: 1px solid var(--border-glass);
    box-shadow: var(--shadow-sm);
}

/* ===== User Profile ===== */
.sidebar-user {
    padding: 12px 20px;
    border-top: 1px solid var(--border-glass);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    color: white;
    flex-shrink: 0;
}

.user-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

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

.role-badge {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 2px 8px;
    border-radius: 6px;
    width: fit-content;
}

.role-admin {
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.role-entry {
    background: rgba(34, 197, 94, 0.15);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.btn-logout {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 8px;
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.2s;
    flex-shrink: 0;
}

.btn-logout:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.4);
}

.text-muted {
    color: var(--text-muted);
    font-size: 0.8rem;
    font-style: italic;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-glass);
    text-align: center;
}

.sidebar-footer span {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    margin-left: 280px;
    padding: 32px 40px;
    min-height: 100vh;
    overflow-y: auto;
}

/* ===== Page Header ===== */
.page-header {
    margin-bottom: 32px;
    animation: fadeInDown 0.5s ease;
}

.page-title {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 4px;
}

.page-subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===== Stats Bar ===== */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
    animation: fadeInUp 0.5s ease 0.1s both;
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all var(--transition-base);
}

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

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.stat-icon.customers {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
}

.stat-icon.surveys {
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.2), rgba(6, 182, 212, 0.2));
}

.stat-icon.invoices {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.2), rgba(245, 158, 11, 0.2));
}

.stat-info h3 {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.stat-info p {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===== Content Panels ===== */
.content-panel {
    display: none;
    animation: fadeInUp 0.4s ease;
}

.content-panel.active {
    display: block;
}

/* ===== Glass Card ===== */
.glass-card {
    background: rgba(30, 41, 59, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 24px;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base), border-color var(--transition-base);
}

.glass-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.card-header {
    padding: 20px 32px;
    border-bottom: 1px solid var(--border-glass);
    background: rgba(255, 255, 255, 0.01);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h2 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.card-body {
    padding: 32px;
}

/* ===== Form Styles ===== */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-left: 2px;
}

.form-group input,
.form-group select {
    padding: 14px 16px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    width: 100%;
    transition: all 0.2s ease;
}

.form-group input:hover,
.form-group select:hover {
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(0, 0, 0, 0.25);
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--accent-indigo);
    background: rgba(0, 0, 0, 0.3);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
    outline: none;
}

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

.form-actions {
    display: flex;
    gap: 12px;
    padding-top: 16px;
    justify-content: flex-end;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    letter-spacing: 0.02em;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    filter: brightness(1.1);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

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

.btn-ghost:hover {
    background: var(--bg-glass-hover);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.15);
}

/* ===== Table Styles ===== */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.data-table thead th {
    padding: 16px 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    text-align: left;
    border-bottom: 2px solid var(--border-glass);
    white-space: nowrap;
    position: sticky;
    top: 0;
    background: #0f172a;
    /* Hardcoded to match bg-primary for sticky opacity */
    z-index: 10;
}

.data-table tbody tr {
    transition: all 0.2s ease;
}

.data-table tbody tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.015);
}

.data-table tbody tr:hover {
    background: rgba(99, 102, 241, 0.08);
    transform: scale(1.002);
}

.data-table tbody td {
    padding: 16px 20px;
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
    vertical-align: middle;
}

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

.data-table tbody td strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* ===== Empty State ===== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    text-align: center;
}

.empty-state .empty-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.4;
}

.empty-state h3 {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.empty-state p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ===== Toast Notifications ===== */
.toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--bg-secondary);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    max-width: 420px;
    animation: slideInRight 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.875rem;
    color: var(--text-primary);
}

.toast.success {
    border-left: 3px solid var(--accent-emerald);
}

.toast.error {
    border-left: 3px solid var(--accent-rose);
}

.toast-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.toast.fade-out {
    animation: slideOutRight 0.3s ease forwards;
}

/* ===== Loader ===== */
.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

/* ===== Mobile Toggle ===== */
.mobile-toggle {
    display: none;
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 200;
    width: 44px;
    height: 44px;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-primary);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-16px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOutRight {
    from {
        opacity: 1;
        transform: translateX(0);
    }

    to {
        opacity: 0;
        transform: translateX(40px);
    }
}

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

/* ===== Status Badge ===== */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.status-badge.active {
    background: rgba(52, 211, 153, 0.15);
    color: var(--accent-emerald);
}

.status-badge.pending {
    background: rgba(251, 191, 36, 0.15);
    color: var(--accent-amber);
}

/* ===== Responsive ===== */

/* ----- Small Desktop / Landscape Tablet (≤1200px) ----- */
@media (max-width: 1200px) {
    .main-content {
        padding: 28px 28px;
    }

    .stats-bar {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 12px;
    }
}

/* ----- Tablet (≤1024px) ----- */
@media (max-width: 1024px) {
    .main-content {
        padding: 24px 20px;
    }

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

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

    .stat-card {
        padding: 16px 18px;
    }

    .stat-icon {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }

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

    .survey-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    }

    .data-table thead th,
    .data-table tbody td {
        padding: 10px 12px;
        font-size: 0.8rem;
    }
}

/* ----- Mobile / Portrait Tablet (≤768px) ----- */
@media (max-width: 768px) {
    .mobile-toggle {
        display: flex;
    }

    /* Sidebar: off-screen by default, slide in as overlay */
    .sidebar {
        transform: translateX(-100%);
        box-shadow: none;
    }

    .sidebar.open {
        transform: translateX(0);
        box-shadow: 8px 0 40px rgba(0, 0, 0, 0.5);
    }

    /* Reduce background glow on smaller screens */
    body::before {
        background:
            radial-gradient(ellipse 80% 50% at 20% 40%, rgba(99, 102, 241, 0.04), transparent),
            radial-gradient(ellipse 60% 40% at 80% 20%, rgba(34, 211, 238, 0.03), transparent);
    }

    .main-content {
        margin-left: 0;
        padding: 72px 16px 32px;
    }

    .page-header {
        margin-bottom: 20px;
    }

    .page-title {
        font-size: 1.35rem;
    }

    .page-subtitle {
        font-size: 0.82rem;
    }

    /* Stats: stack single column */
    .stats-bar {
        grid-template-columns: 1fr;
        gap: 10px;
        margin-bottom: 20px;
    }

    .stat-card {
        padding: 14px 16px;
        gap: 12px;
    }

    .stat-value {
        font-size: 1.3rem;
    }

    /* Forms: single column, larger touch targets */
    .form-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .form-group input,
    .form-group select {
        padding: 12px 14px;
        font-size: 1rem;
        min-height: 46px;
        /* touch-friendly */
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn {
        width: 100%;
        justify-content: center;
        padding: 14px 20px;
    }

    .card-body {
        padding: 18px 16px;
    }

    /* Survey grid */
    .survey-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 10px;
    }

    /* Totals bar */
    .totals-bar {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    /* Data table: ensure horizontal scroll with shadow hint */
    .table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0 -16px;
        padding: 0 16px;
    }

    .data-table {
        min-width: 600px;
    }

    .data-table thead th {
        padding: 10px 12px;
        font-size: 0.68rem;
    }

    .data-table tbody td {
        padding: 12px;
        font-size: 0.82rem;
    }

    /* Toast: full width on mobile */
    .toast-container {
        top: auto;
        bottom: 16px;
        right: 12px;
        left: 12px;
    }

    .toast {
        min-width: auto;
        max-width: none;
        width: 100%;
    }

    /* Cards header */
    .card-header {
        flex-wrap: wrap;
        gap: 8px;
    }

    .card-header h3 {
        font-size: 0.95rem;
    }
}

/* ----- Small Mobile (≤480px) ----- */
@media (max-width: 480px) {
    .main-content {
        padding: 64px 12px 24px;
    }

    .page-header {
        margin-bottom: 16px;
    }

    .page-title {
        font-size: 1.2rem;
    }

    .page-subtitle {
        font-size: 0.78rem;
    }

    /* Stat cards: compact */
    .stat-card {
        padding: 12px 14px;
        gap: 10px;
    }

    .stat-icon {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }

    .stat-value {
        font-size: 1.15rem;
    }

    .stat-label {
        font-size: 0.65rem;
    }

    /* Survey: smaller grid items */
    .survey-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    /* Sidebar logo: slightly smaller */
    .logo-icon {
        width: 36px;
        height: 36px;
        font-size: 17px;
    }

    .logo-text h1 {
        font-size: 1rem;
    }

    /* Buttons: full width */
    .btn {
        padding: 12px 18px;
        font-size: 0.8rem;
    }

    /* Forms */
    .form-group label {
        font-size: 0.7rem;
    }

    .form-group input,
    .form-group select {
        padding: 11px 12px;
        font-size: 0.95rem;
    }

    /* Table compact */
    .data-table {
        min-width: 520px;
    }

    .data-table thead th {
        padding: 8px 10px;
        font-size: 0.65rem;
    }

    .data-table tbody td {
        padding: 10px;
        font-size: 0.78rem;
    }

    /* Empty state compact */
    .empty-state {
        padding: 40px 16px;
    }

    .empty-state .empty-icon {
        font-size: 2.2rem;
    }

    .empty-state h3 {
        font-size: 0.95rem;
    }

    /* Toast */
    .toast {
        padding: 12px 14px;
        font-size: 0.8rem;
    }

    /* Export modal */
    .modal-card {
        width: 96%;
        margin: 0 2%;
    }

    .modal-form-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .modal-header {
        padding: 16px 18px;
    }

    .modal-body {
        padding: 18px;
    }

    .modal-actions {
        padding: 14px 18px;
        flex-direction: column;
    }

    .modal-actions .btn-export,
    .modal-actions .btn-secondary {
        width: 100%;
        justify-content: center;
    }
}

/* ===== Section Dividers (for combined panels) ===== */
.section-divider {
    margin-top: 36px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-glass);
}

.section-divider:first-child {
    margin-top: 0;
}

.section-divider-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

/* ===== Survey Section Styles ===== */
.survey-section-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 20px 0 12px;
    border-top: 1px solid var(--border-glass);
    margin-top: 20px;
    letter-spacing: 0.02em;
}

.survey-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 24px;
}

.survey-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: all var(--transition-base);
}

.survey-item:hover {
    border-color: var(--border-glow);
    background: rgba(99, 102, 241, 0.04);
}

.survey-item label {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    line-height: 1.3;
}

.survey-item .rate-info {
    font-size: 0.68rem;
    color: var(--accent-cyan);
    font-family: var(--font-mono);
    opacity: 0.8;
}

.survey-item input {
    padding: 8px 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-family: var(--font-mono);
    outline: none;
    transition: all var(--transition-base);
    text-align: center;
}

.survey-item input:focus {
    border-color: var(--accent-indigo);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    background: rgba(255, 255, 255, 0.06);
}

/* ===== Totals Bar ===== */
.totals-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    padding: 20px 0;
    border-top: 1px solid var(--border-glass);
    margin-top: 8px;
}

.total-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.total-item label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.total-item input {
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-mono);
    font-weight: 600;
    outline: none;
}

.total-item.highlight input {
    border-color: var(--accent-emerald);
    background: rgba(52, 211, 153, 0.08);
    color: var(--accent-emerald);
    font-size: 1.1rem;
}

.total-item input[readonly] {
    cursor: default;
    opacity: 0.9;
}

/* ===== Export Button (Sidebar) ===== */
.export-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px 16px;
    margin-bottom: 12px;
    background: var(--gradient-success);
    border: none;
    border-radius: var(--radius-md);
    color: #fff;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-base);
    text-transform: none;
    letter-spacing: 0;
}

.export-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(16, 185, 129, 0.35);
}

.export-icon {
    font-size: 1.2rem;
}

/* ===== Modal Overlay ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(6px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

/* ===== Modal Card ===== */
.modal-card {
    width: 90%;
    max-width: 560px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transform: scale(0.92) translateY(20px);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.modal-overlay.visible .modal-card {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-glass);
}

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.modal-desc {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 0.93rem;
}

.modal-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}

.modal-field label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    margin-bottom: 6px;
}

.modal-field input,
.modal-field select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    background: var(--bg-glass);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: var(--font-sans);
    outline: none;
    transition: border-color var(--transition-fast);
}

.modal-field input:focus,
.modal-field select:focus {
    border-color: var(--accent-indigo);
}

.modal-field select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.modal-preview {
    padding: 12px 16px;
    background: rgba(99, 102, 241, 0.06);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: var(--radius-sm);
}

.preview-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    margin-bottom: 4px;
}

.modal-preview code {
    color: var(--accent-indigo-light);
    font-family: var(--font-mono);
    font-size: 0.88rem;
    word-break: break-all;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 24px;
    border-top: 1px solid var(--border-glass);
}

.btn-secondary {
    padding: 10px 20px;
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
}

.btn-export {
    padding: 10px 24px;
    border: none;
    border-radius: var(--radius-sm);
    background: var(--gradient-success);
    color: #fff;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-export:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.btn-export:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-loading {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* ===== Spinner ===== */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

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

/* ===== Mobile: Modal ===== */
@media (max-width: 640px) {
    .modal-card {
        width: 95%;
        max-width: none;
    }

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

/* ===== Settings Panel ===== */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.setting-group {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 16px;
}

.setting-group h3 {
    margin-bottom: 12px;
    font-size: 1rem;
    color: var(--accent-cyan);
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: 8px;
}

.setting-list {
    list-style: none;
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: 12px;
}

.setting-list li {
    padding: 6px 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.add-setting-form {
    display: flex;
    gap: 8px;
}

.add-setting-form input {
    flex: 1;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    padding: 6px 10px;
    color: var(--text-primary);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.9rem;
}

/* ===== Auth Layout (Login) ===== */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    z-index: 1;
    position: relative;
    width: 100%;
}

.auth-wrapper {
    width: 100%;
    max-width: 420px;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.auth-header {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.auth-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.4);
    color: white;
}

.auth-title {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.auth-card {
    background: rgba(30, 41, 59, 0.75);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.auth-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
}

.remember-me input {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-indigo);
    cursor: pointer;
}

/* ===== Pagination ===== */
.pagination-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 16px;
    border-top: 1px solid var(--border-glass);
}

.pagination-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== Header Controls ===== */
.header-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-input {
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
    outline: none;
    transition: all 0.2s;
    width: 200px;
}

.search-input:focus {
    border-color: var(--accent-indigo);
    background: rgba(255, 255, 255, 0.08);
}

/* ===== Icon Buttons ===== */
.btn-icon {
    background: transparent;
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 8px;
    cursor: pointer;
    padding: 6px 10px;
    font-size: 0.85rem;
    transition: all 0.2s ease;
    color: var(--text-muted);
    margin-right: 4px;
}

.btn-icon:hover {
    background: rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.5);
    transform: scale(1.1);
    color: var(--text-primary);
}

/* ===== Delete Button ===== */
.btn-delete {
    background: transparent;
    border: 1px solid rgba(255, 80, 80, 0.2);
    border-radius: 8px;
    cursor: pointer;
    padding: 6px 10px;
    font-size: 0.85rem;
    transition: all 0.2s ease;
    color: var(--text-muted);
}

.btn-delete:hover {
    background: rgba(255, 60, 60, 0.15);
    border-color: rgba(255, 60, 60, 0.5);
    transform: scale(1.1);
}

/* ===== Status Badges ===== */
.status-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.status-badge.matched {
    background: rgba(52, 211, 153, 0.15);
    color: #34d399;
    border: 1px solid rgba(52, 211, 153, 0.3);
}

.status-badge.unmatched {
    background: rgba(251, 191, 36, 0.12);
    color: #fbbf24;
    border: 1px solid rgba(251, 191, 36, 0.3);
}

/* ===== Summary Dashboard ===== */
.summary-overview {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.summary-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.summary-card.full-width {
    grid-column: 1 / -1;
}

.overview-card {
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.overview-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.overview-card.accent {
    border-color: rgba(99, 102, 241, 0.4);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(139, 92, 246, 0.08));
}

.overview-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 6px;
    background: linear-gradient(135deg, #818cf8, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.overview-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

.summary-card-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-glass);
}

/* ===== Bar Charts ===== */
.chart-bars {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.bar-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.bar-label {
    flex: 0 0 120px;
    font-size: 0.78rem;
    color: var(--text-secondary);
    text-align: right;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.bar-track {
    flex: 1;
    height: 22px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 6px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    border-radius: 6px;
    background: linear-gradient(90deg, #818cf8, #6366f1);
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 4px;
}

.bar-fill.olt {
    background: linear-gradient(90deg, #34d399, #10b981);
}

.bar-fill.revenue {
    background: linear-gradient(90deg, #fbbf24, #f59e0b);
}

.bar-fill.activity {
    background: linear-gradient(90deg, #f472b6, #ec4899);
}

.bar-value {
    flex: 0 0 60px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: right;
}

.empty-state-mini {
    text-align: center;
    color: var(--text-muted);
    padding: 20px;
    font-size: 0.85rem;
}

/* Compact data table for summary */
.data-table.compact {
    font-size: 0.85rem;
}

.data-table.compact th,
.data-table.compact td {
    padding: 10px 16px;
}

/* ===== Summary Responsive ===== */
@media (max-width: 1024px) {
    .summary-overview {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .summary-overview {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

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

    .overview-number {
        font-size: 1.8rem;
    }

    .bar-label {
        flex: 0 0 80px;
        font-size: 0.7rem;
    }

    .bar-value {
        flex: 0 0 45px;
        font-size: 0.72rem;
    }

    .summary-card {
        padding: 16px;
    }
}

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