:root {
    --c-bg: #FAF7F2;
    --c-surface: #FFFFFF;
    --c-surface2: #F5F0EA;
    --c-border: #E8DFD5;
    --c-border-hi: #C5B8AB;
    --c-text: #333333;
    --c-text-2: #6B6259;
    --c-text-3: #A89C92;
    --c-accent: #1D7074;
    --c-accent-lt: rgba(29, 112, 116, 0.08);
    --g-header: linear-gradient(135deg, #1D7074 0%, #279198 100%);
    --g-btn: linear-gradient(135deg, #F4A261 0%, #F7B97E 100%);
    --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
    --r-xl: 22px;
    --r-lg: 16px;
    --r-md: 12px;
    --r-sm: 8px;
}

[data-theme="dark"] {
    --c-bg: #0D1A1A;
    --c-surface: #122020;
    --c-surface2: #1A2E2E;
    --c-border: rgba(255, 255, 255, 0.08);
    --c-border-hi: rgba(255, 255, 255, 0.15);
    --c-text: #EDF4F4;
    --c-text-2: #89A8A8;
    --c-text-3: #4A7070;
    --c-accent: #4FB8BD;
    --c-accent-lt: rgba(79, 184, 189, 0.12);
    --g-header: linear-gradient(135deg, #1D5E62 0%, #226B6F 100%);
    --g-btn: linear-gradient(135deg, #D4824A 0%, #E09A62 100%);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font);
    color: var(--c-text);
    background: radial-gradient(circle at 10% -20%, rgba(29, 112, 116, 0.12), transparent 50%), var(--c-bg);
    min-height: 100vh;
}

a {
    color: var(--c-accent);
}

.app-container {
    max-width: 1360px;
    margin: 0 auto;
    padding: 20px 16px 50px;
}

.site-header {
    background: var(--g-header);
    border-radius: var(--r-xl);
    padding: 18px 20px;
    box-shadow: 0 8px 32px rgba(29, 112, 116, 0.25);
    margin-bottom: 20px;
}

.header-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.site-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: #ffffff;
}

.site-logo {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    object-fit: cover;
    background: rgba(255, 255, 255, 0.2);
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.site-title {
    font-weight: 800;
    letter-spacing: -0.2px;
}

.site-slogan {
    font-size: 13px;
    opacity: 0.9;
}

.header-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.btn-ghost,
.theme-toggle,
.file-picker,
button,
.btn-like {
    border: 1px solid var(--c-border-hi);
    border-radius: 999px;
    padding: 9px 14px;
    background: rgba(255, 255, 255, 0.16);
    color: #ffffff;
    text-decoration: none;
    font-weight: 700;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-ghost:hover,
.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.28);
}

main {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.intro-card,
.toolbar-card,
.pages-wrap,
.sidebar {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.04);
}

.intro-card {
    padding: 16px;
}

.intro-card h1 {
    margin: 0 0 8px;
    font-size: 23px;
    letter-spacing: -0.35px;
}

.intro-card p {
    margin: 0;
    color: var(--c-text-2);
}

.upload-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-top: 14px;
}

.file-picker {
    background: var(--g-btn);
    border: none;
    color: #ffffff;
    box-shadow: 0 4px 16px rgba(244, 162, 97, 0.3);
}

.file-picker.alt {
    background: linear-gradient(135deg, #1D7074 0%, #279198 100%);
    box-shadow: 0 4px 16px rgba(29, 112, 116, 0.25);
}

.upload-zone {
    border: 2px dashed var(--c-border-hi);
    border-radius: var(--r-md);
    padding: 14px;
    background: var(--c-surface2);
}

.upload-zone.dragover {
    border-color: var(--c-accent);
    background: #ffffff;
}

.upload-zone p {
    margin: 0 0 8px;
    color: var(--c-text-2);
    font-size: 14px;
}

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

#documentInput,
#cameraInput {
    display: none;
}

.muted {
    color: var(--c-text-2);
    font-size: 14px;
}

.toolbar-card {
    padding: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: space-between;
    align-items: center;
}

.toolbar-left,
.toolbar-right {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.toolbar-card button,
.btn-like {
    color: var(--c-text);
    background: var(--c-surface2);
    border: 1px solid var(--c-border);
}

.step-card {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.04);
    padding: 14px;
}

.step-head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.step-head h2 {
    margin: 0;
    font-size: 18px;
}

.step-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 72px;
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 700;
    background: var(--c-accent-lt);
    color: var(--c-accent);
    border: 1px solid var(--c-border);
}

.step-content {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.employer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    margin-bottom: 10px;
}

.employer-card {
    text-align: left;
    border-radius: 14px;
    border: 1px solid var(--c-border);
    background: var(--c-surface2);
    color: var(--c-text);
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.employer-card span {
    color: var(--c-text-2);
    font-size: 12px;
    font-weight: 500;
}

.employer-card.active {
    border-color: var(--c-accent);
    box-shadow: 0 0 0 2px var(--c-accent-lt);
    background: #ffffff;
}

.step-content select {
    min-width: 230px;
    border-radius: 999px;
    border: 1px solid var(--c-border);
    background: var(--c-surface2);
    color: var(--c-text);
    padding: 9px 14px;
    font-size: 13px;
    font-weight: 700;
}

.hidden {
    display: none;
}

.mode-btn.active {
    border-color: var(--c-accent);
    color: var(--c-accent);
    background: var(--c-accent-lt);
}

.workspace-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 14px;
    align-items: start;
}

.pages-wrap {
    padding: 12px;
}

.status-bar {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--c-border);
    padding-bottom: 10px;
    margin-bottom: 10px;
    font-size: 13px;
    color: var(--c-text-2);
}

#autoScanInfo {
    margin: 0 0 10px;
}

.pages-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 12px;
}

.page-card {
    border: 1px solid var(--c-border);
    border-radius: var(--r-md);
    background: var(--c-surface2);
    padding: 10px;
}

.page-card.active {
    border-color: var(--c-accent);
    box-shadow: 0 0 0 2px var(--c-accent-lt);
}

.page-title {
    margin: 0 0 8px;
    font-size: 14px;
    font-weight: 700;
    color: var(--c-text-2);
}

.canvas-wrap {
    position: relative;
    border: 1px solid var(--c-border-hi);
    background: #ffffff;
    border-radius: 6px;
    overflow: hidden;
}

.page-canvas {
    width: 100%;
    height: auto;
    display: block;
}

.overlay {
    position: absolute;
    inset: 0;
    cursor: crosshair;
}

.annotation-box {
    position: absolute;
    border-radius: 3px;
}

.annotation-box.mask {
    background: rgba(0, 0, 0, 0.78);
    border: 1px solid rgba(0, 0, 0, 0.92);
}

.annotation-box.crop {
    border: 2px dashed rgba(215, 66, 57, 0.95);
    background: rgba(215, 66, 57, 0.2);
}

.annotation-box.preview-mask {
    border: 1px dashed rgba(0, 0, 0, 0.9);
    background: rgba(0, 0, 0, 0.2);
}

.annotation-box.preview-crop {
    border: 2px dashed rgba(215, 66, 57, 0.95);
    background: rgba(215, 66, 57, 0.2);
}

.annotation-tag {
    position: absolute;
    top: -18px;
    right: 0;
    font-size: 11px;
    color: #fff;
    background: rgba(0, 0, 0, 0.82);
    border-radius: 999px;
    padding: 2px 7px;
}

.sidebar {
    padding: 12px;
    position: sticky;
    top: 14px;
}

.sidebar h2 {
    margin: 0;
    font-size: 18px;
}

#jsonOutput {
    margin-top: 10px;
    width: 100%;
    min-height: 340px;
    resize: vertical;
    border: 1px solid var(--c-border);
    border-radius: var(--r-sm);
    background: var(--c-surface2);
    color: var(--c-text);
    padding: 10px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    font-size: 12px;
    line-height: 1.45;
}

.sidebar-actions {
    margin-top: 10px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}

.sidebar-actions button,
.sidebar-actions .btn-like,
.sidebar-actions select {
    width: 100%;
    text-align: center;
    justify-content: center;
    color: var(--c-text);
    background: var(--c-surface2);
    border: 1px solid var(--c-border);
}

.sidebar-actions select {
    border-radius: 999px;
    padding: 9px 14px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
}

.sidebar-actions button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.preset-help {
    margin: 8px 2px 0;
    font-size: 12px;
}

.hint-box {
    margin-top: 12px;
    background: var(--c-surface2);
    border: 1px solid var(--c-border);
    border-radius: var(--r-sm);
    padding: 10px;
}

.hint-box h3 {
    margin: 0 0 8px;
    font-size: 14px;
}

.hint-box ol {
    margin: 0;
    padding-left: 18px;
    color: var(--c-text-2);
    font-size: 13px;
    line-height: 1.6;
}

.site-footer {
    margin-top: 14px;
    border-top: 1px solid var(--c-border);
    padding-top: 12px;
    color: var(--c-text-2);
    font-size: 13px;
}

.site-footer p {
    margin: 0;
}

.validation-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 10px;
}

.validation-actions button {
    color: var(--c-text);
    background: var(--c-surface2);
    border: 1px solid var(--c-border);
    border-radius: 999px;
    padding: 9px 14px;
    font-weight: 700;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 10px;
    margin-bottom: 10px;
}

.confirm-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 10px 0;
    color: var(--c-text-2);
    font-size: 14px;
}

#payloadOutput {
    width: 100%;
    min-height: 220px;
    resize: vertical;
    border: 1px solid var(--c-border);
    border-radius: var(--r-sm);
    background: var(--c-surface2);
    color: var(--c-text);
    padding: 10px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    font-size: 12px;
    line-height: 1.45;
}

#sendToAiBtn {
    margin-top: 8px;
    color: #ffffff;
    background: var(--g-btn);
    border: none;
    border-radius: 999px;
    padding: 10px 16px;
    font-weight: 700;
}

@media (max-width: 1080px) {
    .workspace-grid {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }
}

@media (max-width: 760px) {
    .app-container {
        padding: 14px 10px 40px;
    }

    .header-main {
        flex-direction: column;
        align-items: flex-start;
    }

    .site-slogan {
        font-size: 12px;
    }

    .toolbar-card {
        flex-direction: column;
        align-items: stretch;
    }

    .toolbar-left,
    .toolbar-right {
        width: 100%;
    }

    .validation-actions button {
        width: 100%;
    }

    .toolbar-left button,
    .toolbar-right button {
        flex: 1;
    }

    .upload-actions .file-picker {
        flex: 1;
        text-align: center;
    }

    .pages-container {
        grid-template-columns: 1fr;
    }
}