:root,
[data-theme="dark"] {
    --bg-main: #0B0F19;
    --sidebar-bg: #111827;
    --bg-card: #151E32;
    /* Realce em relação ao fundo escuro */
    --bg-card-hover: #1E2B45;
    --border-color: rgba(255, 255, 255, 0.12);
    /* Borda ligeiramente mais clara */
    --text-primary: #F3F4F6;
    --text-secondary: #9CA3AF;
    --input-bg: #161F30;
    --option-bg: #0F172A;
    --option-text: #F8FAFC;
    --primary-color: #2563EB;
    --primary-glow: rgba(37, 99, 235, 0.4);
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --danger-color: #EF4444;
    --font-sans: 'Outfit', sans-serif;
    --sidebar-width: 260px;
    --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), inset 0 1px 1px rgba(255, 255, 255, 0.05);
    --btn-secondary-bg: rgba(255, 255, 255, 0.1);
    --btn-secondary-hover: rgba(255, 255, 255, 0.15);
}

[data-theme="intermediate"] {
    --bg-main: #1E293B;
    --sidebar-bg: #0F172A;
    --bg-card: #334155;
    --bg-card-hover: #3B4A61;
    --border-color: rgba(255, 255, 255, 0.15);
    --text-primary: #F8FAFC;
    --text-secondary: #CBD5E1;
    --input-bg: #1E293B;
    --option-bg: #0F172A;
    --option-text: #F8FAFC;
    --primary-color: #3B82F6;
    --primary-glow: rgba(59, 130, 246, 0.4);
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --danger-color: #EF4444;
    --font-sans: 'Outfit', sans-serif;
    --sidebar-width: 260px;
    --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    --btn-secondary-bg: rgba(255, 255, 255, 0.15);
    --btn-secondary-hover: rgba(255, 255, 255, 0.2);
}

[data-theme="light"] {
    --bg-main: #F1F5F9;
    --sidebar-bg: #FFFFFF;
    --bg-card: #FFFFFF;
    --bg-card-hover: #F8FAFC;
    --border-color: #E2E8F0;
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --input-bg: #F8FAFC;
    --option-bg: #FFFFFF;
    --option-text: #0F172A;
    --primary-color: #2563EB;
    --primary-glow: rgba(37, 99, 235, 0.2);
    --success-color: #059669;
    --warning-color: #D97706;
    --danger-color: #DC2626;
    --font-sans: 'Outfit', sans-serif;
    --sidebar-width: 260px;
    --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    --btn-secondary-bg: #E2E8F0;
    --btn-secondary-hover: #CBD5E1;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Base Layout with Sidebar */
.app-container {
    display: flex;
    width: 100%;
}

.sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.sidebar-brand {
    padding: 2rem 1.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-moldura {
    background-color: #F1F5F9;
    /* Branco Gelo */
    border: 3px solid var(--primary-color, #2563EB);
    /* Azul Padrão Bener Engenharia */
    border-radius: 12px;
    padding: 10px 15px;
    /* Espaçamento interno */
    display: inline-block;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
    /* Sombra azul suave */
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    max-width: 100%;
    height: auto;
    box-sizing: border-box;
}

.logo-moldura:hover {
    transform: scale(1.03);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
}

.sidebar-brand span {
    color: var(--primary-color);
}

.sidebar-menu {
    list-style: none;
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex-grow: 1;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.sidebar-menu a:hover,
.sidebar-menu li.active a {
    color: var(--text-primary);
    background-color: var(--bg-card-hover);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.user-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
    word-break: break-all;
}

.btn-logout {
    font-size: 0.9rem;
    color: var(--danger-color);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.main-content {
    margin-left: var(--sidebar-width);
    flex-grow: 1;
    padding: 2.5rem;
    min-height: 100vh;
}

/* Glassmorphism Cards */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
    background: var(--bg-card-hover);
}

.card-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

/* Grid Layouts */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 2rem;
}

/* Stat Cards */
.stat-card {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-value.success {
    color: var(--success-color);
}

.stat-value.primary {
    color: var(--primary-color);
}

/* Typography */
h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

p {
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-sans);
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #FFF;
    box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
    background-color: #1D4ED8;
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.6);
}

.btn-success {
    background-color: var(--success-color);
    color: #FFF;
}

.btn-success:hover {
    background-color: #059669;
}

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

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

.btn-danger {
    background-color: var(--danger-color);
    color: #FFF;
}

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

/* Tables */
.table-responsive {
    overflow-x: auto;
    width: 100%;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th,
td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    font-weight: 600;
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.02);
}

td {
    color: var(--text-secondary);
}

tr:hover td {
    color: var(--text-primary);
}

/* Forms & Inputs */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-control,
select {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

select {
    cursor: pointer;
}

select option {
    background-color: var(--option-bg);
    color: var(--option-text);
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
}

select option:hover,
select option:focus,
select option:checked {
    background-color: var(--bg-card-hover);
    color: var(--primary-color);
}

.form-control:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-glow);
    background-color: var(--bg-card-hover);
}

/* Flash Messages */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
    border: 1px solid transparent;
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.15);
    border-color: rgba(16, 185, 129, 0.3);
    color: #A7F3D0;
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.3);
    color: #FEE2E2;
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.15);
    border-color: rgba(245, 158, 11, 0.3);
    color: #FEF3C7;
}

.alert-info {
    background-color: rgba(37, 99, 235, 0.15);
    border-color: rgba(37, 99, 235, 0.3);
    color: #DBEAFE;
}

/* Light Theme Overrides for Alerts */
[data-theme="light"] .alert-success {
    background-color: rgba(5, 150, 105, 0.15);
    border-color: rgba(5, 150, 105, 0.3);
    color: #065F46;
    /* Dark green for light bg */
}

[data-theme="light"] .alert-danger {
    background-color: rgba(220, 38, 38, 0.15);
    border-color: rgba(220, 38, 38, 0.3);
    color: #991B1B;
    /* Dark red for light bg */
}

[data-theme="light"] .alert-warning {
    background-color: rgba(217, 119, 6, 0.15);
    border-color: rgba(217, 119, 6, 0.3);
    color: #92400E;
    /* Dark yellow/orange for light bg */
}

[data-theme="light"] .alert-info {
    background-color: rgba(37, 99, 235, 0.15);
    border-color: rgba(37, 99, 235, 0.3);
    color: #1E40AF;
    /* Dark blue for light bg */
}

/* Login/Signup layout (Auth) */
.auth-wrapper {
    min-height: 100vh;
    width: 100vw;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url('/static/img/fundo_login_cropped.jpg');
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
    background-attachment: fixed;
    position: relative;
    overflow: hidden;
}

.auth-wrapper::before {
    content: '';
    position: absolute;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle at center, rgba(37, 99, 235, 0.15) 0%, transparent 50%);
    top: -25%;
    left: -25%;
    z-index: 0;
    pointer-events: none;
}

.auth-card {
    width: 100%;
    max-width: 480px;
    padding: 3rem 2.5rem;
    background: rgba(15, 23, 42, 0.35);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 30px rgba(37, 99, 235, 0.2);
    z-index: 1;
    border-radius: 16px;
    /* 85% transparente em repouso (15% de opacidade) */
    opacity: 0.15;
    transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1), background 0.35s ease, backdrop-filter 0.35s ease, box-shadow 0.35s ease;
}

.auth-card:hover,
.auth-card:focus-within,
.auth-card.has-value {
    /* 100% visível quando o mouse estiver em cima ou algum campo em uso */
    opacity: 1.0;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), 0 0 35px rgba(37, 99, 235, 0.35);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header p {
    color: #CBD5E1;
}

.auth-card .form-control {
    background-color: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #FFFFFF;
}

.auth-card .form-control:focus {
    background-color: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
}

.auth-card .form-label {
    color: #E2E8F0;
}

.auth-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.9rem;
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

/* Chat Assistant interface */
/* Chat Assistant Interface (Aparência Premium nos 3 Temas) */
.chat-page-header {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.chat-header-avatar {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary-color, #2563EB) 0%, #1D4ED8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #FFFFFF;
    box-shadow: 0 6px 18px rgba(37, 99, 235, 0.35);
    flex-shrink: 0;
}

.chat-header-info h1 {
    font-size: 1.6rem;
    font-weight: 700;
    margin: 0 0 0.35rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
}

.chat-status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.65rem;
    border-radius: 999px;
    background: rgba(16, 185, 129, 0.12);
    color: #10B981;
    border: 1px solid rgba(16, 185, 129, 0.25);
}

.chat-status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background-color: #10B981;
    box-shadow: 0 0 8px #10B981;
}

.chat-header-info p {
    margin: 0;
    font-size: 0.92rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.45rem;
}

.chat-container {
    display: flex;
    flex-direction: column;
    height: 72vh;
}

.chat-messages {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1rem 0.5rem 1.25rem 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.chat-bubble {
    max-width: 82%;
    padding: 1.15rem 1.35rem;
    border-radius: 14px;
    line-height: 1.65;
    font-size: 0.95rem;
    animation: fadeIn 0.25s ease-out;
}

.chat-bubble.user {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1D4ED8 100%);
    color: #FFFFFF;
    align-self: flex-end;
    border-bottom-right-radius: 2px;
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
}

.chat-bubble.ai {
    background-color: var(--input-bg);
    color: var(--text-primary);
    align-self: flex-start;
    border-bottom-left-radius: 2px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
}

/* Welcome Box */
.chat-welcome-box {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 1.5rem;
    max-width: 900px;
    width: 100%;
}

.chat-welcome-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.75rem;
}

.chat-welcome-desc {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.chat-scope-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 0.9rem;
    background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.22);
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1.25rem;
}

.chat-suggestions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 0.75rem;
}

.chat-suggestion-chip {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.85rem 1rem;
    cursor: pointer;
    transition: all 0.25s ease;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    text-align: left;
    color: var(--text-primary);
    font-size: 0.87rem;
    line-height: 1.45;
}

.chat-suggestion-chip:hover {
    border-color: var(--primary-color);
    background: var(--bg-card-hover, rgba(37, 99, 235, 0.06));
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
}

.chat-suggestion-chip i {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-top: 0.15rem;
    flex-shrink: 0;
}

/* Chat Input Bar */
.chat-input-bar {
    display: flex;
    gap: 0.75rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.chat-input-wrapper {
    position: relative;
    flex-grow: 1;
}

.chat-input-wrapper i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.chat-input-wrapper input {
    width: 100%;
    padding: 0.85rem 1rem 0.85rem 2.6rem;
    border-radius: 10px;
    font-size: 0.95rem;
}

.chat-send-btn {
    padding: 0.85rem 1.6rem;
    border-radius: 10px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

/* Drag and Drop Uploader */
.upload-drag-area {
    border: 2px dashed rgba(255, 255, 255, 0.2);
    border-radius: 0.75rem;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: rgba(255, 255, 255, 0.01);
}

.upload-drag-area:hover,
.upload-drag-area.dragover {
    border-color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.05);
}

.upload-icon {
    font-size: 3rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* Badges for flags */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge.vermelha {
    background-color: rgba(239, 68, 68, 0.2);
    color: #FCA5A5;
}

.badge.amarela {
    background-color: rgba(245, 158, 11, 0.2);
    color: #FDE047;
}

.badge.verde {
    background-color: rgba(16, 185, 129, 0.2);
    color: #6EE7B7;
}

[data-theme="light"] .badge.vermelha {
    color: #B91C1C;
}

[data-theme="light"] .badge.amarela {
    color: #B45309;
}

[data-theme="light"] .badge.verde {
    color: #047857;
}

/* Custom Table Checkboxes */
.table-checkbox {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-color);
    vertical-align: middle;
}

/* Batch Action Bar */
.batch-toolbar {
    display: none;
    align-items: center;
    justify-content: space-between;
    background: rgba(37, 99, 235, 0.15);
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: 0.5rem;
    padding: 0.75rem 1.25rem;
    margin-bottom: 1rem;
    animation: fadeIn 0.3s ease;
}

.batch-toolbar.active {
    display: flex;
}

.batch-info {
    font-size: 0.95rem;
    font-weight: 500;
    color: #93C5FD;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: var(--bg-color);
    /* Fundo sólido! */
    padding: 2rem;
    border-radius: 12px;
    width: 95%;
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    color: var(--text-primary);
}

[data-theme="dark"] .modal-content {
    background-color: #111827;
    /* Fundo escuro sólido para contraste */
}

[data-theme="medium"] .modal-content {
    background-color: #1E293B;
    /* Fundo médio sólido para contraste */
}

[data-theme="light"] .modal-content {
    background-color: #FFFFFF;
    /* Fundo branco sólido */
}

/* Loading Overlay & Spinner */
.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    /* Cor neutra para o fundo translúcido */
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.loading-overlay.active {
    display: flex;
}

.loading-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2.5rem;
    max-width: 480px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
    animation: scaleUp 0.3s ease;
}

.spinner {
    width: 56px;
    height: 56px;
    border: 4px solid rgba(37, 99, 235, 0.2);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1.5rem auto;
}

.loading-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.loading-message {
    font-size: 0.98rem;
    color: var(--text-primary);
    line-height: 1.6;
    font-weight: 500;
}

.loading-warning {
    display: inline-block;
    margin-top: 0.75rem;
    padding: 0.4rem 1rem;
    background: rgba(239, 68, 68, 0.12);
    color: #DC2626;
    border: 1px solid rgba(239, 68, 68, 0.25);
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 700;
}

[data-theme="dark"] .loading-warning,
[data-theme="intermediate"] .loading-warning {
    color: #F87171;
    background: rgba(239, 68, 68, 0.18);
    border-color: rgba(239, 68, 68, 0.35);
}

/* File list in uploader */
.file-list-container {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 200px;
    overflow-y: auto;
    text-align: left;
}

.file-item-pill {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 0.4rem;
    padding: 0.5rem 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.file-item-pill .file-size {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

/* Notice highlight box */
.notice-highlight {
    background: rgba(37, 99, 235, 0.08);
    border-left: 4px solid var(--primary-color);
    border-radius: 0 0.5rem 0.5rem 0;
    padding: 1rem 1.25rem;
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-primary);
    line-height: 1.5;
}

.notice-highlight strong {
    color: #93C5FD;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }

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

@keyframes scaleUp {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Theme Switcher Controls */
.theme-switcher-wrapper {
    margin-bottom: 0.75rem;
}

.theme-switcher-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.4rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.theme-toggle-group {
    display: flex;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.2rem;
    gap: 0.2rem;
}

[data-theme="light"] .theme-toggle-group {
    background: #E2E8F0;
}

.theme-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.45rem 0.25rem;
    border-radius: 0.35rem;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    transition: all 0.2s ease;
    font-family: var(--font-sans);
}

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

.theme-btn.active {
    background-color: var(--primary-color);
    color: #FFFFFF !important;
    font-weight: 600;
    box-shadow: 0 2px 8px var(--primary-glow);
}

/* =========================================================
   Mobile Navigation & Responsive Design Support
   ========================================================= */

/* Mobile Top Header - hidden on desktop */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background-color: var(--sidebar-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 0 1rem;
    z-index: 990;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.mobile-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text-primary);
}

.btn-hamburger {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.35rem;
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.35rem;
    transition: background-color 0.2s ease;
}

.btn-hamburger:hover,
.btn-hamburger:focus {
    background-color: var(--bg-card-hover);
}

/* Dim backdrop overlay behind sidebar when open on mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(3px);
    z-index: 995;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
    display: block;
    opacity: 1;
}

/* Filter Grid class for forms */
.filtros-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    align-items: flex-end;
}

/* Hide helper on mobile */
.hide-mobile {
    display: table-cell;
}

/* =========================================================
   Media Queries (Tablets and Mobile Devices <= 768px)
   ========================================================= */
@media (max-width: 768px) {

    /* Show mobile header */
    .mobile-header {
        display: flex;
    }

    /* Transform Sidebar into an off-canvas drawer */
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s ease;
        width: 280px;
        z-index: 1000;
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.5);
        overflow-y: auto;
    }

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

    /* Adjust main content container */
    .main-content {
        margin-left: 0 !important;
        padding: 1.25rem 1rem !important;
        padding-top: 4.75rem !important;
        /* Space for the 60px fixed mobile header */
        width: 100%;
        min-height: 100vh;
    }

    /* Collapse Grid Columns to 100% */
    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr !important;
        gap: 1.25rem !important;
    }

    .filtros-grid {
        grid-template-columns: 1fr !important;
        gap: 1rem !important;
    }

    /* Adjust cards and typography for mobile */
    .card {
        padding: 1.25rem !important;
        margin-bottom: 1.25rem !important;
    }

    h1 {
        font-size: 1.5rem !important;
        margin-bottom: 0.75rem !important;
    }

    h2,
    .card-title {
        font-size: 1.2rem !important;
        margin-bottom: 1rem !important;
    }

    .stat-value {
        font-size: 1.6rem !important;
    }

    /* Buttons flex wrapping and touch sizing */
    .btn {
        padding: 0.65rem 1.2rem;
        font-size: 0.9rem;
    }

    .mobile-stack {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 0.75rem !important;
    }

    /* Helper class to hide non-essential table columns on small screens */
    .hide-mobile {
        display: none !important;
    }

    /* Drag area touch friendly */
    .upload-drag-area {
        padding: 2rem 1rem !important;
    }

    /* Tables */
    .table-responsive {
        -webkit-overflow-scrolling: touch;
        margin-top: 0.5rem;
    }

    table th,
    table td {
        padding: 0.75rem 0.6rem;
        font-size: 0.85rem;
    }

    /* Chat on mobile */
    .chat-bubble {
        max-width: 90% !important;
        padding: 0.85rem 1rem !important;
        font-size: 0.9rem !important;
    }

    .chat-input-area {
        gap: 0.5rem !important;
    }

    .chat-input-area .btn {
        padding: 0.65rem 0.9rem !important;
    }

    /* Modals on mobile */
    .modal-content {
        padding: 1.25rem !important;
        width: 95% !important;
        max-height: 92vh !important;
    }
}