/* TGC TransHub v3.0 - Guided Flow Design */
:root {
    --bg-primary: #f7f2e8;
    --bg-secondary: #fffdf9;
    --bg-tertiary: #f2ece2;
    --bg-accent: #d4e8e3;
    --text-primary: #18202b;
    --text-secondary: #2f3d4f;
    --text-muted: #5f6f80;
    --border-color: #d8cfbf;
    --primary: #006d77;
    --primary-hover: #00545c;
    --primary-soft: #daf0ed;
    --success: #1e9b63;
    --error: #be3d36;
    --warning: #a76800;
    --shadow-sm: 0 2px 8px rgba(24, 32, 43, 0.06);
    --shadow: 0 6px 24px rgba(24, 32, 43, 0.12);
    --shadow-lg: 0 14px 42px rgba(24, 32, 43, 0.18);
    --radius: 12px;
    --radius-lg: 18px;
    --focus-ring: 0 0 0 3px rgba(0, 109, 119, 0.25);
}

[data-theme="dark"] {
    --bg-primary: #101824;
    --bg-secondary: #192436;
    --bg-tertiary: #25324a;
    --bg-accent: #183b42;
    --text-primary: #f7f5ef;
    --text-secondary: #d6dfeb;
    --text-muted: #9caabf;
    --border-color: #33445f;
    --primary: #69d4c8;
    --primary-hover: #89e4da;
    --primary-soft: rgba(105, 212, 200, 0.18);
    --success: #6ee7b7;
    --error: #fca5a5;
    --warning: #fbbf24;
    --focus-ring: 0 0 0 3px rgba(105, 212, 200, 0.35);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.28);
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.32);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.4);
}

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

html,
body {
    min-height: 100%;
}

body {
    font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at 18% 8%, rgba(205, 232, 226, 0.65), transparent 36%),
        radial-gradient(circle at 86% 20%, rgba(250, 220, 196, 0.55), transparent 38%),
        var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.55;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
}

h1,
h2,
h3 {
    font-family: "Sora", "Plus Jakarta Sans", sans-serif;
    letter-spacing: -0.01em;
}

.main {
    padding: 26px 0 34px;
}

.header {
    background: color-mix(in oklab, var(--bg-secondary) 86%, transparent);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary);
    font-size: 1.24rem;
    font-weight: 700;
}

.logo i {
    font-size: 1.45rem;
}

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

.hero-card {
    position: relative;
    background: linear-gradient(140deg, color-mix(in oklab, var(--bg-secondary) 92%, white), var(--bg-accent));
    border: 1px solid var(--border-color);
    border-radius: calc(var(--radius-lg) + 4px);
    box-shadow: var(--shadow);
    padding: 26px 24px;
    margin-bottom: 16px;
    overflow: hidden;
}

.hero-card::after {
    content: "";
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 999px;
    top: -150px;
    right: -130px;
    background: rgba(255, 255, 255, 0.4);
    pointer-events: none;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary);
    background: var(--primary-soft);
    margin-bottom: 11px;
}

.hero-card h1 {
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    margin-bottom: 10px;
}

.hero-copy {
    max-width: 68ch;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.hero-notes {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    position: relative;
    z-index: 1;
}

.hero-notes span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 11px;
    border: 1px solid color-mix(in oklab, var(--border-color) 75%, var(--primary) 25%);
    border-radius: 999px;
    background: color-mix(in oklab, var(--bg-secondary) 88%, transparent);
    font-size: 0.81rem;
    color: var(--text-secondary);
}

.hero-notes i {
    color: var(--primary);
}

.flow-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 18px;
}

.flow-step {
    display: flex;
    align-items: center;
    gap: 12px;
    background: color-mix(in oklab, var(--bg-secondary) 88%, transparent);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 12px 13px;
    box-shadow: var(--shadow-sm);
    transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.flow-number {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 0.82rem;
    font-weight: 700;
    color: white;
    background: linear-gradient(140deg, var(--primary), color-mix(in oklab, var(--primary) 65%, black));
}

.flow-step.is-active {
    border-color: color-mix(in oklab, var(--primary) 54%, var(--border-color));
    background: color-mix(in oklab, var(--primary-soft) 64%, var(--bg-secondary));
}

.flow-step.is-active .flow-number {
    transform: scale(1.04);
}

.flow-step.is-complete {
    border-color: color-mix(in oklab, var(--success) 60%, var(--border-color));
}

.flow-step.is-complete .flow-number {
    background: linear-gradient(140deg, var(--success), color-mix(in oklab, var(--success) 72%, black));
}

.flow-step h3 {
    font-size: 0.88rem;
    margin-bottom: 1px;
}

.flow-step p {
    font-size: 0.76rem;
    color: var(--text-muted);
}

.card {
    background: color-mix(in oklab, var(--bg-secondary) 93%, transparent);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 22px;
    margin-bottom: 18px;
    transition: transform 0.24s ease, box-shadow 0.24s ease;
}

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

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 13px;
    margin-bottom: 12px;
}

.card-header h2 {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 1.02rem;
    line-height: 1.3;
}

.card-header i {
    color: var(--primary);
}

.section-copy {
    color: var(--text-secondary);
    font-size: 0.92rem;
    margin-bottom: 15px;
}

.helper-text {
    margin-top: 10px;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.helper-text:empty {
    display: none;
}

.helper-text[data-state="error"] {
    color: var(--error);
    font-weight: 600;
}

.helper-text[data-state="ready"],
.helper-text[data-state="running"] {
    color: var(--primary);
}

.helper-text[data-state="success"] {
    color: var(--success);
}

.helper-text.hint {
    margin-top: 11px;
}

.badge {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 0.72rem;
    font-weight: 600;
    white-space: nowrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.btn:focus-visible,
.icon-btn:focus-visible,
.text-btn:focus-visible,
.browse-link:focus-visible,
select:focus-visible,
.remove-file-btn:focus-visible,
.result-item .download-btn:focus-visible,
.history-item .download-btn:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.btn-primary {
    background: linear-gradient(140deg, var(--primary), color-mix(in oklab, var(--primary) 60%, black));
    color: #ffffff;
    box-shadow: 0 10px 22px rgba(0, 109, 119, 0.25);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    background: linear-gradient(140deg, var(--primary-hover), color-mix(in oklab, var(--primary-hover) 65%, black));
}

.btn-primary:disabled {
    cursor: not-allowed;
    opacity: 0.55;
    box-shadow: none;
}

.btn-lg {
    width: 100%;
    padding: 13px 20px;
    margin-top: 4px;
}

.btn-sm {
    font-size: 0.78rem;
    padding: 7px 11px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-sm:hover {
    background: var(--primary-soft);
    border-color: color-mix(in oklab, var(--primary) 50%, var(--border-color));
}

.icon-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.18s ease, color 0.2s ease, background 0.2s ease;
}

.icon-btn:hover {
    color: var(--primary);
    background: var(--primary-soft);
    transform: translateY(-1px);
}

.text-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    border: none;
    background: none;
    color: var(--text-muted);
    font: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: color 0.2s ease;
    min-height: 36px;
}

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

.drop-zone {
    border: 2px dashed color-mix(in oklab, var(--border-color) 76%, var(--primary) 24%);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, color-mix(in oklab, var(--bg-secondary) 95%, transparent), var(--bg-tertiary));
    padding: 34px 22px;
    text-align: center;
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.drop-zone:hover,
.drop-zone.dragover {
    border-color: var(--primary);
    background: color-mix(in oklab, var(--primary-soft) 55%, var(--bg-secondary));
    transform: translateY(-1px);
}

.drop-zone:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.drop-icon {
    font-size: 2.8rem;
    color: var(--primary);
    margin-bottom: 10px;
}

.drop-zone p {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 5px;
}

.browse-link {
    color: var(--primary);
    font-weight: 700;
    text-decoration-thickness: 1.5px;
    text-underline-offset: 2px;
    cursor: pointer;
}

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

.file-list {
    margin-top: 16px;
}

.file-list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 10px;
}

.file-list-header span {
    color: var(--text-secondary);
    font-size: 0.86rem;
    font-weight: 600;
}

.file-items {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 284px;
    overflow-y: auto;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-tertiary);
    padding: 11px 12px;
    font-size: 0.85rem;
}

.file-item i {
    color: var(--primary);
}

.file-item i.fa-file-pdf {
    color: #cf3d37;
}

.file-item i.fa-file-word {
    color: #2f6ce9;
}

.file-item i.fa-file-image {
    color: #1e9b63;
}

.file-item .name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.file-item .size {
    color: var(--text-muted);
    font-size: 0.76rem;
}

.remove-file-btn {
    border: 1px solid color-mix(in oklab, var(--border-color) 70%, transparent);
    background: transparent;
    color: var(--text-muted);
    border-radius: 8px;
    cursor: pointer;
    width: 34px;
    height: 34px;
    display: inline-grid;
    place-items: center;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.remove-file-btn:hover {
    background: color-mix(in oklab, var(--error) 10%, transparent);
    border-color: color-mix(in oklab, var(--error) 45%, var(--border-color));
    color: var(--error);
}

.remove-file-btn:active {
    transform: scale(0.97);
}

.remove-file-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.pdf-badge {
    font-size: 0.63rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #9f1239;
    background: #ffe4ec;
    border: 1px solid #fdc9d8;
    border-radius: 5px;
    padding: 2px 5px;
}

[data-theme="dark"] .pdf-badge {
    color: #fda4af;
    background: rgba(253, 164, 175, 0.1);
    border-color: rgba(253, 164, 175, 0.35);
}

.settings-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 14px;
    align-items: end;
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.81rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font: inherit;
    font-size: 0.89rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group select:hover {
    border-color: color-mix(in oklab, var(--primary) 42%, var(--border-color));
}

.swap-btn-wrap {
    display: flex;
    align-items: center;
    padding-bottom: 2px;
}

.progress-bar-wrap {
    height: 10px;
    background: var(--bg-tertiary);
    border-radius: 999px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    margin-bottom: 15px;
}

.progress-bar {
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--primary), #3fb4bf);
    transition: width 0.35s ease;
}

.progress-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 190px;
    overflow-y: auto;
    margin-bottom: 16px;
}

.progress-item {
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 10px 12px;
    background: var(--bg-tertiary);
    font-size: 0.82rem;
}

.progress-item .status-icon {
    width: 18px;
    text-align: center;
}

.progress-item .status-icon.pending {
    color: var(--text-muted);
}

.progress-item .status-icon.processing {
    color: var(--warning);
}

.progress-item .status-icon.done {
    color: var(--success);
}

.progress-item .status-icon.error {
    color: var(--error);
}

.progress-item .name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.progress-item .status-text {
    font-size: 0.74rem;
    color: var(--text-muted);
}

.log-panel {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-tertiary);
    overflow: hidden;
}

.log-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 12px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    background: color-mix(in oklab, var(--bg-tertiary) 82%, var(--bg-secondary));
}

.log-actions {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.log-content {
    height: 145px;
    overflow-y: auto;
    padding: 11px 12px;
    font-family: "SF Mono", "Monaco", "Inconsolata", monospace;
    font-size: 0.74rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.log-panel.is-collapsed .log-content {
    display: none;
}

.log-entry {
    margin-bottom: 3px;
}

.log-entry.info {
    color: var(--primary);
}

.log-entry.success {
    color: var(--success);
}

.log-entry.error {
    color: var(--error);
}

.log-entry .time {
    color: var(--text-muted);
    margin-right: 8px;
}

.results-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.result-item {
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-tertiary);
    padding: 11px 12px;
}

.result-item i.fa-check-circle {
    color: var(--success);
}

.result-item .name {
    flex: 1;
    font-size: 0.86rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.result-item .download-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: none;
    border-radius: var(--radius);
    padding: 7px 11px;
    font-size: 0.74rem;
    font-weight: 700;
    background: var(--primary);
    color: #ffffff;
    cursor: pointer;
    transition: transform 0.16s ease, background 0.2s ease;
    min-height: 34px;
}

.result-item .download-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.history-list {
    max-height: 310px;
    overflow-y: auto;
}

.history-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 4px;
    border-bottom: 1px solid var(--border-color);
}

.history-item:last-child {
    border-bottom: none;
}

.history-item .info {
    flex: 1;
    min-width: 0;
}

.history-item .name {
    font-size: 0.85rem;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.history-item .meta {
    margin-top: 3px;
    display: flex;
    flex-wrap: wrap;
    gap: 11px;
    font-size: 0.74rem;
    color: var(--text-muted);
}

.history-item .download-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: var(--radius);
    font-size: 0.75rem;
    padding: 7px 11px;
    cursor: pointer;
    transition: all 0.18s ease;
    min-height: 34px;
}

.history-item .download-btn:hover {
    border-color: color-mix(in oklab, var(--primary) 60%, var(--border-color));
    background: var(--primary-soft);
    color: var(--primary);
}

.history-item .download-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    border-color: var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

.history-item.is-unavailable {
    opacity: 0.72;
}

.history-item .session-tag {
    margin-left: 6px;
    font-size: 0.68rem;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    padding: 2px 7px;
    color: var(--text-muted);
}

.empty-state {
    text-align: center;
    padding: 28px 18px;
    color: var(--text-muted);
    font-size: 0.86rem;
}

.footer {
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.8rem;
    text-align: center;
    padding: 24px 12px;
    background: color-mix(in oklab, var(--bg-secondary) 70%, transparent);
}

.hidden {
    display: none !important;
}

.result-actions {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 920px) {
    .flow-strip {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 14px;
    }

    .main {
        padding-top: 18px;
    }

    .header-content {
        padding: 11px 0;
    }

    .logo {
        font-size: 1.06rem;
    }

    .hero-card {
        padding: 20px 16px;
    }

    .hero-notes {
        gap: 7px;
    }

    .hero-notes span {
        font-size: 0.75rem;
        padding: 6px 8px;
    }

    .card {
        padding: 16px 14px;
        border-radius: 14px;
    }

    .card:hover {
        transform: none;
    }

    .card-header {
        align-items: flex-start;
    }

    .card-header h2 {
        font-size: 0.94rem;
    }

    .badge {
        margin-top: 1px;
    }

    .drop-zone {
        padding: 24px 14px;
    }

    .drop-icon {
        font-size: 2.4rem;
    }

    .settings-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .form-group select {
        font-size: 16px;
    }

    .swap-btn-wrap {
        justify-content: center;
        padding: 2px 0;
    }

    .file-item,
    .result-item,
    .progress-item {
        padding: 10px;
    }

    .history-item {
        align-items: flex-start;
    }

    .history-item .download-btn {
        padding: 6px 9px;
        min-height: 44px;
    }

    .icon-btn,
    .text-btn,
    .remove-file-btn,
    .result-item .download-btn {
        min-height: 44px;
    }
}