/* =============================================
   PAGE-SPECIFIC STYLES — Project OS Theme
   ============================================= */

/* ---------- Login Page ---------- */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    width: 100vw;
    background: #0f172a;
    position: relative;
    overflow: hidden;
}

.login-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.login-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: blobFloat 8s ease-in-out infinite;
}

.blob-1 {
    width: 400px; height: 400px;
    background: #6366f1;
    top: -100px; left: -100px;
    animation-delay: 0s;
}

.blob-2 {
    width: 350px; height: 350px;
    background: #8b5cf6;
    bottom: -80px; right: -80px;
    animation-delay: -3s;
    animation-duration: 10s;
}

.blob-3 {
    width: 250px; height: 250px;
    background: #06b6d4;
    top: 50%; left: 60%;
    animation-delay: -5s;
    animation-duration: 12s;
}

@keyframes blobFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-2xl);
    padding: var(--space-10) var(--space-8);
    position: relative;
    z-index: 2;
}

.login-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.login-header .login-logo {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-xl);
    margin: 0 auto var(--space-4);
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}

.login-title {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: #ffffff;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-1);
}

.login-subtitle {
    color: rgba(148, 163, 184, 0.8);
    font-size: var(--font-size-sm);
}

.login-form {
    width: 100%;
}

.login-form .form-label {
    color: rgba(203, 213, 225, 0.8);
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.login-form .form-control {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border-radius: var(--radius-lg);
    height: 48px;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    width: 100%;
    display: block;
}

.login-form .form-control:focus {
    border-color: var(--color-primary);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
    outline: none;
}

.login-form .form-control::placeholder {
    color: rgba(148, 163, 184, 0.5);
}

.login-form .form-group {
    margin-bottom: var(--space-4);
}

.input-icon-wrapper {
    position: relative;
    width: 100%;
}

.btn-login {
    width: 100%;
    height: 48px;
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-lg);
    background: var(--gradient-primary);
    border: none;
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-top: var(--space-2);
}

.btn-login:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
}

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

.login-error {
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-4);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.login-footer {
    text-align: center;
    margin-top: var(--space-6);
    color: rgba(148, 163, 184, 0.4);
    font-size: var(--font-size-xs);
}

.login-footer a {
    color: rgba(148, 163, 184, 0.6);
    text-decoration: underline;
}

.login-error.show { display: block; }

/* ---------- Assets Page: Filter Grid ---------- */
.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-3);
}

/* ---------- Assets Page: Form 2 Columns ---------- */
.form-grid-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.page-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin: 0;
}

.page-header-actions {
    display: flex;
    gap: var(--space-3);
    align-items: center;
}

@media (max-width: 768px) {
    .filter-grid { grid-template-columns: 1fr; }
    .form-grid-2col { grid-template-columns: 1fr; }
    .page-header { flex-direction: column; }
}

/* ---------- Filter Tabs ---------- */
.filter-tab {
    background: var(--glass-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.filter-tab.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.filter-tab:hover:not(.active) {
    background: var(--color-bg-hover);
}

/* ---------- Dashboard Page ---------- */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-6);
    margin-top: var(--space-6);
}

.chart-container {
    position: relative;
    height: 300px;
    padding: var(--space-4);
}

.recent-activity-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    max-height: 400px;
    overflow-y: auto;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.activity-item:hover { background: var(--color-bg-hover); }

.activity-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    margin-top: 6px;
    flex-shrink: 0;
}

.activity-dot.create  { background: var(--color-success); }
.activity-dot.update  { background: var(--color-primary); }
.activity-dot.delete  { background: var(--color-danger); }
.activity-dot.checkout{ background: var(--color-warning); }

.activity-text { font-size: var(--font-size-sm); line-height: 1.4; }
.activity-time { font-size: var(--font-size-xs); color: var(--color-text-muted); margin-top: 2px; }

/* ---------- Asset Detail Page ---------- */
.asset-detail-header {
    display: flex;
    gap: var(--space-6);
    margin-bottom: var(--space-6);
}

.asset-qr-preview {
    width: 160px;
    height: 160px;
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-3);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.asset-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
}

.info-item label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: var(--space-1);
}

.info-item span {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* ---------- QR Public View Page ---------- */
.public-view {
    min-height: 100vh;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

.public-card {
    width: 100%;
    max-width: 500px;
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    animation: slideInUp 0.4s ease;
}

.public-card-hero {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.public-card-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.public-card-hero .status-badge {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
}

.public-card-body { padding: var(--space-6); }

.public-card-body h2 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.public-info-row {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
}

.public-info-row:last-child { border-bottom: none; }
.public-info-row strong { color: var(--color-text-primary); margin-left: auto; }

.public-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6) var(--space-6);
}

/* ---------- QR Batch Print ---------- */
.qr-print-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 2px;
    background: white;
    padding: 10px;
    border-radius: var(--radius-md);
}

.qr-print-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 4px;
    text-align: center;
}

.qr-print-item canvas { width: 100%; }
.qr-print-item .qr-label {
    font-size: 6px;
    color: #333;
    margin-top: 2px;
    font-family: var(--font-family);
    word-break: break-all;
}

/* ---------- Booking Calendar ---------- */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
    background: var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.calendar-day-header {
    background: var(--color-bg-tertiary);
    padding: var(--space-2);
    text-align: center;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-text-secondary);
}

.calendar-day {
    background: var(--color-bg-secondary);
    padding: var(--space-2);
    min-height: 80px;
    font-size: var(--font-size-xs);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.calendar-day:hover { background: var(--color-bg-hover); }
.calendar-day.today { border: 2px solid var(--color-primary); }
.calendar-day.other-month { opacity: 0.3; }

.calendar-event {
    padding: 2px 4px;
    border-radius: 3px;
    font-size: 10px;
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.calendar-event.booked   { background: var(--color-primary-light); color: var(--color-primary); }
.calendar-event.pending  { background: var(--color-warning-light); color: var(--color-warning); }

/* ---------- Scanner Overlay ---------- */
.scanner-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: var(--z-modal);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.scanner-viewfinder {
    width: 300px;
    height: 300px;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}

.scanner-controls {
    margin-top: var(--space-6);
    display: flex;
    gap: var(--space-3);
}

/* ---------- Responsive overrides ---------- */
@media (max-width: 768px) {
    .dashboard-grid { grid-template-columns: 1fr; }
    .asset-detail-header { flex-direction: column; align-items: center; text-align: center; }
    .public-actions { grid-template-columns: 1fr; }
    .asset-info-grid { grid-template-columns: 1fr; }
    .quick-actions-grid { grid-template-columns: 1fr 1fr; }
    .tab-nav { overflow-x: auto; }
}

@media print {
    .sidebar, .header, .filter-bar { display: none !important; }
    .main-content { margin-left: 0 !important; }
    .page-content { padding: 0 !important; }
    .qr-print-grid { box-shadow: none; }
}

/* =============================================
   PHASE 4 — Nâng cấp UI (học từ VKTBKT)
   ============================================= */

/* ---------- Dashboard: Quick Actions ---------- */
.quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--space-3);
}

.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-3);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 600;
    font-family: var(--font-family);
    transition: all var(--transition-fast);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.25);
}

.quick-action-btn:nth-child(2) {
    background: linear-gradient(135deg, #10b981, #059669);
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.25);
}

.quick-action-btn:nth-child(3) {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.25);
}

.quick-action-btn:nth-child(4) {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.25);
}

.quick-action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.35);
}

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

/* ---------- Asset Detail: Tab Navigation ---------- */
.detail-tabs {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.tab-nav {
    display: flex;
    gap: 0;
    background: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-1);
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    background: transparent;
    border: none;
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

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

.tab-btn.active {
    background: var(--color-bg-card);
    color: var(--color-primary);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.tab-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: white;
    font-size: 11px;
    font-weight: 700;
}

.tab-btn.active .tab-badge {
    background: var(--color-primary);
}

.tab-content {
    padding: var(--space-4);
    min-height: 200px;
}

/* ---------- Condition Badges ---------- */
.badge-condition-new {
    background: #dcfce7;
    color: #16a34a;
}

.badge-condition-good {
    background: #dbeafe;
    color: #2563eb;
}

.badge-condition-fair {
    background: #fef3c7;
    color: #d97706;
}

.badge-condition-poor {
    background: #fee2e2;
    color: #dc2626;
}

/* ---------- Department Type Badges ---------- */
.badge-dept-khoa {
    background: #dbeafe;
    color: #2563eb;
}

.badge-dept-phong {
    background: #dcfce7;
    color: #16a34a;
}

.badge-dept-trung_tam {
    background: #f3e8ff;
    color: #7c3aed;
}