/* ============================================
   ROKIA — Design System & Styles
   ============================================ */

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

/* --- CSS Variables --- */
:root {
    --bg-primary: #06080f;
    --bg-secondary: #0d1117;
    --bg-surface: #161b22;
    --bg-card: rgba(22, 27, 34, 0.85);
    --bg-hover: rgba(99, 102, 241, 0.08);

    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.25);

    --accent: #a855f7;
    --accent-light: #c084fc;

    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.12);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.12);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.12);

    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --text-muted: #484f58;

    --border: rgba(240, 246, 252, 0.06);
    --border-strong: rgba(240, 246, 252, 0.12);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 30px var(--primary-glow);

    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* ============================================
   LOGIN PAGE
   ============================================ */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 40%, rgba(99, 102, 241, 0.06) 0%, transparent 50%),
                radial-gradient(circle at 70% 60%, rgba(168, 85, 247, 0.04) 0%, transparent 50%);
    animation: bgPulse 15s ease-in-out infinite;
}

@keyframes bgPulse {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-2%, -1%) scale(1.02); }
}

.login-card {
    position: relative;
    width: 100%;
    max-width: 420px;
    padding: 48px 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    z-index: 1;
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo h1 {
    font-size: 2.4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.login-logo p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 6px;
}

/* --- Form Elements --- */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
    outline: none;
}

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

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

/* --- Captcha --- */
.captcha-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.captcha-question {
    flex: 0 0 auto;
    padding: 10px 18px;
    background: linear-gradient(135deg, var(--primary-dark), var(--accent));
    border-radius: var(--radius-md);
    font-size: 1.2rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 2px;
    white-space: nowrap;
    user-select: none;
}

.captcha-input {
    flex: 1;
}

.captcha-refresh {
    flex: 0 0 auto;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.1rem;
}

.captcha-refresh:hover {
    color: var(--primary-light);
    border-color: var(--primary);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    box-shadow: 0 2px 10px var(--primary-glow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    box-shadow: 0 4px 20px var(--primary-glow);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

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

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

.btn-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.2);
}

.btn-sm { padding: 8px 16px; font-size: 0.85rem; }

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

/* --- Alerts --- */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    margin-bottom: 16px;
    display: none;
}

.alert.show { display: block; animation: slideIn 0.3s ease; }

.alert-error {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

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

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

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

/* --- Sidebar --- */
.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: var(--transition);
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
}

.sidebar-header h1 {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-header span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 4px;
    font-weight: 500;
    font-size: 0.9rem;
}

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

.nav-item.active {
    background: var(--primary-glow);
    color: var(--primary-light);
}

.nav-item .nav-icon {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px 12px;
    border-top: 1px solid var(--border);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    color: #fff;
}

.user-name {
    font-size: 0.85rem;
    font-weight: 500;
}

.logout-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 10px 12px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.85rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

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

/* --- Main Content --- */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 32px;
    min-height: 100vh;
}

.page-header {
    margin-bottom: 28px;
}

.page-header h2 {
    font-size: 1.6rem;
    font-weight: 700;
}

.page-header p {
    color: var(--text-secondary);
    margin-top: 4px;
}

/* --- Cards --- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    padding: 24px;
    backdrop-filter: blur(10px);
    margin-bottom: 24px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.card-title {
    font-size: 1.05rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-title .icon {
    font-size: 1.2rem;
}

/* --- Upload Zone --- */
.upload-zone {
    border: 2px dashed var(--border-strong);
    border-radius: var(--radius-lg);
    padding: 36px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary);
    background: var(--bg-hover);
}

.upload-zone.dragover {
    box-shadow: inset 0 0 30px var(--primary-glow);
}

.upload-zone .upload-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.upload-zone p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.upload-zone .browse-link {
    color: var(--primary-light);
    font-weight: 500;
    cursor: pointer;
}

.upload-zone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.upload-success {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--success-bg);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: var(--radius-md);
    color: var(--success);
    font-size: 0.9rem;
}

/* --- Form Grid --- */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* --- Progress Bar --- */
.progress-section {
    display: none;
}

.progress-section.show {
    display: block;
    animation: slideIn 0.4s ease;
}

.progress-bar-container {
    width: 100%;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
    margin: 12px 0;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 4px;
    width: 0%;
    transition: width 0.5s ease;
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
}

/* ============================================
   RESULTS TABLE
   ============================================ */
.results-section {
    display: none;
}

.results-section.show {
    display: block;
    animation: slideIn 0.4s ease;
}

.results-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    padding: 20px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* --- Filter bar --- */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 6px 14px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

.filter-btn.active {
    background: var(--primary-glow);
    border-color: var(--primary);
    color: var(--primary-light);
}

/* --- Table --- */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.results-table thead {
    background: var(--bg-surface);
    position: sticky;
    top: 0;
    z-index: 1;
}

.results-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-strong);
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
    transition: var(--transition);
}

.results-table th:hover {
    color: var(--primary-light);
}

.results-table th .sort-icon {
    margin-left: 4px;
    opacity: 0.3;
}

.results-table th.sorted .sort-icon {
    opacity: 1;
    color: var(--primary-light);
}

.results-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
    max-width: 250px;
    overflow: hidden;
    text-overflow: ellipsis;
}

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

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

.results-table tbody tr:nth-child(even) {
    background: rgba(255,255,255,0.01);
}

.results-table tbody tr:nth-child(even):hover {
    background: var(--bg-hover);
}

/* --- Badges --- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    white-space: nowrap;
}

.badge-yes {
    background: var(--success-bg);
    color: var(--success);
}

.badge-no {
    background: rgba(255,255,255,0.04);
    color: var(--text-muted);
}

.badge-status {
    background: var(--primary-glow);
    color: var(--primary-light);
}

.badge-error {
    background: var(--danger-bg);
    color: var(--danger);
}

/* ============================================
   HISTORY
   ============================================ */
.history-section {
    display: none;
}

.history-section.show { display: block; }

.client-group {
    margin-bottom: 24px;
}

.client-group-title {
    font-size: 1.1rem;
    font-weight: 600;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.history-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 8px;
    transition: var(--transition);
    cursor: pointer;
}

.history-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.history-item-info h4 {
    font-weight: 600;
    font-size: 0.95rem;
}

.history-item-info p {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-top: 2px;
}

.history-item-stats {
    display: flex;
    align-items: center;
    gap: 16px;
}

.history-item-stat {
    text-align: center;
}

.history-item-stat .val {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-light);
}

.history-item-stat .lbl {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* ============================================
   LOADING SPINNER
   ============================================ */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-strong);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: inline-block;
}

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

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(6, 8, 15, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
}

.loading-content {
    text-align: center;
}

.loading-content .spinner {
    width: 40px;
    height: 40px;
    border-width: 3px;
    margin-bottom: 16px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .form-grid { grid-template-columns: 1fr; }
    .results-stats { grid-template-columns: 1fr; }
}

/* ============================================
   UTILITIES
   ============================================ */
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-muted { color: var(--text-secondary); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-2 { margin-bottom: 16px; }
.gap-2 { gap: 16px; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }