/* ========================================
   HUB09 LAB AI - Article Analyzer
   Black & White Professional Theme
   ======================================== */

:root {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-card: #ffffff;
    --bg-card-hover: #f5f5f5;

    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;
    --text-on-card: #000000;
    --text-on-card-secondary: #333333;

    --border-color: rgba(255, 255, 255, 0.15);
    --border-color-dark: rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --border-radius-sm: 6px;

    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);

    --transition-fast: 0.15s ease;
    --transition-medium: 0.3s ease;
}

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

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

/* Fixed Agency Logo */
.fixed-logo {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    padding: 16px 20px;
    background: linear-gradient(to bottom, var(--bg-primary) 60%, transparent);
    opacity: 1;
    transition: opacity 0.2s ease;
}

.fixed-logo:hover {
    opacity: 0.8;
}

.fixed-logo img {
    height: 28px;
    width: auto;
}

/* ========================================
   Container & Layout
   ======================================== */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 24px 80px;
}

/* ========================================
   Header
   ======================================== */
.header {
    text-align: center;
    margin-bottom: 48px;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 12px;
}

.logo-icon {
    display: none;
}

.logo h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 400;
}

/* ========================================
   Input Section
   ======================================== */
.input-section {
    margin-bottom: 32px;
}

.input-card {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 32px;
}

.input-card label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.input-wrapper {
    display: flex;
    gap: 12px;
}

.input-wrapper input {
    flex: 1;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 16px 20px;
    font-size: 1rem;
    color: var(--text-primary);
    transition: var(--transition-fast);
}

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

.input-wrapper input:focus {
    outline: none;
    border-color: var(--text-primary);
}

.btn-primary {
    background: var(--text-primary);
    border: none;
    border-radius: var(--border-radius-sm);
    padding: 16px 32px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--bg-primary);
    cursor: pointer;
    transition: var(--transition-medium);
    min-width: 140px;
}

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

.btn-primary:active {
    transform: scale(0.98);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-loader {
    display: flex;
    align-items: center;
    justify-content: center;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(0, 0, 0, 0.2);
    border-top-color: #000;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.input-hint {
    margin-top: 12px;
    font-size: 0.85rem;
    color: var(--text-muted);
}


/* ========================================
   Format Selection (Radio Buttons)
   ======================================== */
.format-selection {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-top: 16px;
    color: var(--text-on-card-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* ========================================
   Output Configuration Section
   ======================================== */
.output-config {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 20px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color-dark);
    border-radius: var(--border-radius);
}

.config-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.config-label {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Format Cards */
.format-cards {
    display: flex;
    gap: 12px;
}

.format-card {
    flex: 1;
    padding: 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid transparent;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
}

.format-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
}

.format-card.selected {
    background: rgba(255, 255, 255, 0.1);
    border-color: #ffffff;
}

.format-card input[type="radio"] {
    display: none;
}

.format-card-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    text-align: center;
}

.format-icon {
    font-size: 1.5rem;
}

.format-name {
    color: #ffffff;
    font-size: 1rem;
    font-weight: 600;
}

.format-desc {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.75rem;
}

/* Slide Count Box */
.slide-count-box {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-sm);
}

.auto-toggle-box {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: var(--border-radius-sm);
    transition: background 0.2s;
}

.auto-toggle-box:hover {
    background: rgba(255, 255, 255, 0.08);
}

.auto-toggle-box input[type="checkbox"] {
    display: none;
}

.toggle-check {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 4px;
    color: transparent;
    font-size: 0.8rem;
    font-weight: bold;
    transition: all 0.2s;
}

.auto-toggle-box input[type="checkbox"]:checked+.toggle-check {
    background: #ffffff;
    border-color: #ffffff;
    color: #000000;
}

.toggle-text {
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 500;
}

.toggle-text small {
    color: rgba(255, 255, 255, 0.5);
    font-weight: 400;
}

.slider-box {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    position: relative;
}

/* Invisible click overlay to enable slider when Auto is active */
.slider-click-area {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10;
    cursor: pointer;
}

.slider-click-area.hidden {
    display: none;
}

.slider-box input[type="range"] {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
    cursor: pointer;
}

.slider-box input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: #ffffff;
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s;
}

.slider-box input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.slider-box input[type="range"]:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.slider-box input[type="range"]:disabled::-webkit-slider-thumb {
    cursor: not-allowed;
    transform: scale(0.9);
}

.slide-count-value {
    color: #ffffff;
    font-size: 1.2rem;
    font-weight: 700;
    min-width: 30px;
    text-align: center;
}

#slide-count-selector.hidden {
    display: none;
}

.mini-texts-section.hidden {
    display: none;
}

/* ========================================
   Error Card
   ======================================== */
.error-card {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius-sm);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.error-icon {
    display: none;
}

.error-card p {
    color: var(--text-primary);
    font-size: 0.95rem;
}

/* ========================================
   Results Section
   ======================================== */
.results-section {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

/* ========================================
   Download Bar
   ======================================== */
.download-bar {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 24px;
}

.btn-download {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-medium);
}

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

/* ========================================
   Summary Card (White Box)
   ======================================== */
.result-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 28px;
    margin-bottom: 32px;
    box-shadow: var(--shadow-card);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.card-icon {
    display: none;
}

.card-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-on-card);
}

.card-content p,
#summary-text p {
    color: var(--text-on-card-secondary);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 12px;
}

.card-content p:last-child,
#summary-text p:last-child {
    margin-bottom: 0;
}

/* ========================================
   Section Title
   ======================================== */
.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.section-title::before {
    content: none;
}

/* ========================================
   Mini-texts Grid (White Boxes)
   ======================================== */
.mini-texts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.mini-text-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 24px;
    transition: var(--transition-medium);
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    min-height: 280px;
}

.mini-text-card .mini-text-content {
    flex: 1;
}

.mini-text-card .btn-prompt-image {
    margin-top: auto;
    align-self: flex-start;
}

.mini-text-card::before {
    display: none;
}

.mini-text-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.mini-text-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--bg-primary);
    color: var(--text-primary);
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.mini-text-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-on-card);
}

.mini-text-subhead {
    font-size: 0.9rem;
    color: var(--text-on-card-secondary);
    margin-bottom: 12px;
    font-weight: 500;
}

.mini-text-content {
    font-size: 0.95rem;
    color: var(--text-on-card-secondary);
    line-height: 1.6;
}

.slide-title {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-on-card);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.slide-body {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-on-card-secondary);
    line-height: 1.6;
}

/* Card Footer with Copy/Regen */
.card-footer,
.mini-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color-dark);
}

.char-counter {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.footer-buttons {
    display: flex;
    gap: 8px;
}

.btn-copy,
.btn-regen {
    padding: 6px 14px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--border-color-dark);
    border-radius: 4px;
    background: transparent;
    color: var(--text-on-card-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-copy:hover,
.btn-regen:hover {
    background: var(--bg-primary);
    color: var(--text-primary);
    border-color: var(--bg-primary);
}

.btn-copy.copied {
    background: #2d2d2d;
    color: white;
    border-color: #2d2d2d;
}

.btn-small {
    padding: 4px 10px;
    font-size: 0.75rem;
}

/* Regenerating state */
.mini-text-card.regenerating {
    opacity: 0.6;
    pointer-events: none;
}

.mini-text-card.regenerated {
    animation: highlightCard 0.5s ease;
}

@keyframes highlightCard {

    0%,
    100% {
        box-shadow: var(--shadow-card);
    }

    50% {
        box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.3);
    }
}

/* ========================================
   Card Buttons Container
   ======================================== */
.card-buttons {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

.btn-generate-prompt {
    flex: 1;
    padding: 10px 16px;
    background: transparent;
    border: 1px solid var(--border-color-dark);
    border-radius: var(--border-radius-sm);
    color: var(--text-on-card);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.btn-generate-prompt:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-generate-prompt.generated {
    background: var(--text-on-card-secondary);
    color: var(--text-primary);
}

.btn-search-getty {
    flex: 1;
    padding: 10px 16px;
    background: transparent;
    border: 1px solid var(--border-color-dark);
    border-radius: var(--border-radius-sm);
    color: var(--text-on-card);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-search-getty:hover {
    background: #e74c3c;
    border-color: #e74c3c;
    color: #fff;
}

.btn-search-getty:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ========================================
   Prompt Container
   ======================================== */
.prompt-container {
    margin-top: 16px;
    padding: 16px;
    background: #f5f5f5;
    border-radius: var(--border-radius-sm);
}

.prompt-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-on-card);
    margin-bottom: 8px;
}

.prompt-text {
    font-size: 0.9rem;
    color: var(--text-on-card-secondary);
    line-height: 1.5;
    font-style: italic;
}

.btn-copy-prompt {
    margin-top: 12px;
    padding: 8px 16px;
    background: var(--bg-primary);
    border: none;
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-copy-prompt:hover {
    background: var(--bg-secondary);
}

/* ========================================
   Chart Button (on white cards)
   ======================================== */
.btn-generate-chart {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    margin-top: 16px;
    padding: 12px 16px;
    background: var(--bg-primary);
    border: none;
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-medium);
}

.btn-generate-chart:hover {
    background: var(--bg-secondary);
}

.btn-generate-chart:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-generate-chart.generated {
    background: var(--text-on-card-secondary);
}

.chart-container {
    margin-top: 16px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    text-align: center;
}

.chart-container svg {
    max-width: 100%;
    height: auto;
}

.btn-download-chart {
    display: block;
    margin: 12px auto 0;
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.chart-no-data {
    color: var(--text-muted);
    font-size: 0.9rem;
    padding: 12px;
    font-style: italic;
}

.btn-generate-chart.no-data {
    background: transparent;
    color: var(--text-muted);
    border-color: var(--text-muted);
}

/* ========================================
   Login Page
   ======================================== */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.login-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 48px 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-card);
}

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

.login-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-on-card);
    margin-bottom: 8px;
}

.login-header p {
    color: var(--text-on-card-secondary);
    font-size: 0.95rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.form-group label {
    color: var(--text-on-card);
    font-size: 0.9rem;
    font-weight: 500;
}

.form-group input {
    padding: 12px 16px;
    border: 1px solid var(--border-color-dark);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    background: #fafafa;
    color: var(--text-on-card);
    transition: var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    border-color: var(--text-on-card);
    background: #fff;
}

.form-group input::placeholder {
    color: #999;
}

.login-error {
    background: #fee;
    border: 1px solid #fcc;
    border-radius: var(--border-radius-sm);
    padding: 12px;
    color: #c00;
    font-size: 0.9rem;
    text-align: center;
}

.btn-login {
    background: var(--text-on-card);
    color: var(--bg-card);
    border: none;
    padding: 14px 24px;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 8px;
}

.btn-login:hover:not(:disabled) {
    opacity: 0.9;
}

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

/* ========================================
   Logout Button in Header
   ======================================== */
.header {
    position: relative;
    padding-top: 50px;
    /* Space for user-info bar */
}

.user-info {
    position: absolute;
    top: 0;
    right: 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-name {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.btn-logout {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

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

/* ========================================
   Utilities
   ======================================== */
.hidden {
    display: none !important;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 640px) {
    .container {
        padding: 24px 16px 60px;
    }

    .logo h1 {
        font-size: 1.5rem;
    }

    .input-wrapper {
        flex-direction: column;
    }

    .btn-primary {
        width: 100%;
    }

    .mini-texts-grid {
        grid-template-columns: 1fr;
    }

    .user-info {
        position: static;
        justify-content: center;
        margin-bottom: 16px;
    }

    .login-card {
        padding: 32px 24px;
    }
}


/* ========================================
   History Page
   ======================================== */

.btn-history,
.btn-back {
    padding: 6px 14px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.btn-history:hover,
.btn-back:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}

.history-section {
    margin-top: 32px;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.history-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 20px 24px;
    transition: transform var(--transition-fast);
}

.history-card:hover {
    transform: translateY(-2px);
}

.history-info {
    flex: 1;
}

.history-title {
    color: var(--text-on-card);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.history-meta {
    display: flex;
    gap: 16px;
    font-size: 0.85rem;
}

.history-date {
    color: var(--text-on-card-secondary);
}

.history-type {
    color: var(--text-on-card);
    background: rgba(0, 0, 0, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 500;
}

.history-link {
    color: var(--text-on-card-secondary);
    text-decoration: none;
}

.history-link:hover {
    text-decoration: underline;
}

.history-actions {
    margin-left: 24px;
}

.btn-download-history {
    display: inline-block;
    padding: 10px 20px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #ffffff;
    background: #000000;
    border: none;
    border-radius: var(--border-radius-sm);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-download-history:hover {
    background: #333333;
}

.empty-state {
    text-align: center;
    padding: 60px 24px;
    color: var(--text-muted);
}

.empty-state p {
    margin-bottom: 24px;
    font-size: 1.1rem;
}

@media (max-width: 600px) {
    .history-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .history-actions {
        margin-left: 0;
        width: 100%;
    }

    .btn-download-history {
        width: 100%;
        text-align: center;
    }
}

/* ========================================
   Loading Overlay
   ======================================== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

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

.loading-steps {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.loading-step {
    display: flex;
    align-items: center;
    gap: 20px;
    opacity: 0.3;
    transition: all 0.4s ease;
}

.loading-step.active {
    opacity: 1;
}

.loading-step.completed {
    opacity: 0.6;
}

.step-indicator {
    position: relative;
    width: 20px;
    height: 20px;
}

.step-dot {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 12px;
    height: 12px;
    background: #ffffff;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.loading-step.active .step-dot {
    width: 16px;
    height: 16px;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

.loading-step.completed .step-dot {
    background: #666666;
}

.step-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    opacity: 0;
}

.loading-step.active .step-pulse {
    animation: pulse 1.5s ease-out infinite;
}

@keyframes pulse {
    0% {
        width: 16px;
        height: 16px;
        opacity: 0.8;
    }

    100% {
        width: 40px;
        height: 40px;
        opacity: 0;
    }
}

.step-text {
    color: #ffffff;
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* ========================================
   History Modal Overlay
   ======================================== */
.history-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.history-modal.hidden {
    display: none;
}

.history-modal-content {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

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

.history-modal-header h2 {
    color: var(--text-on-card);
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.btn-close-modal {
    background: none;
    border: none;
    color: var(--text-on-card-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    transition: color 0.2s;
}

.btn-close-modal:hover {
    color: var(--text-on-card);
}

.history-modal-body {
    padding: 16px 24px;
    overflow-y: auto;
    flex: 1;
}

.history-item {
    padding: 16px;
    border: 1px solid var(--border-color-dark);
    border-radius: 8px;
    margin-bottom: 12px;
    transition: background 0.2s;
}

.history-item:hover {
    background: rgba(0, 0, 0, 0.05);
}

.history-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 8px;
}

.history-title {
    color: var(--text-on-card);
    font-weight: 500;
    font-size: 0.95rem;
    line-height: 1.4;
    flex: 1;
}

.history-type {
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 4px;
    background: var(--bg-primary);
    color: var(--text-primary);
    white-space: nowrap;
}

.history-item-meta {
    margin-bottom: 12px;
}

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

.history-item-actions {
    display: flex;
    gap: 8px;
}

.btn-history-load,
.btn-history-download,
.btn-history-delete {
    padding: 6px 14px;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-history-load,
.btn-history-download {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: none;
}

.btn-history-load:hover,
.btn-history-download:hover {
    background: #333;
}

.btn-history-delete {
    background: transparent;
    color: var(--text-on-card-secondary);
    border: 1px solid var(--border-color-dark);
}

.btn-history-delete:hover {
    background: #dc3545;
    color: white;
    border-color: #dc3545;
}

.loading-text,
.empty-text,
.error-text {
    text-align: center;
    color: var(--text-muted);
    padding: 40px 0;
}