:root,
:root[data-theme="dark"] {
    --validator-bg: #07130f;
    --validator-panel: #101827;
    --validator-panel-soft: #142033;
    --validator-border: rgba(148, 163, 184, 0.18);
    --validator-text: #f8fafc;
    --validator-muted: #a7b0c2;
    --validator-green: #22c55e;
    --validator-green-dark: #16a34a;
    --validator-preview-bg: #dbeee0;
    --validator-radius: 8px;
    --pe-nav-bg: rgba(8, 20, 16, 0.96);
    --pe-nav-shadow: 0 10px 26px rgba(0, 0, 0, 0.2);
    --pe-bg: #07130f;
    --pe-surface: #101827;
    --pe-surface-strong: #121d2f;
    --pe-card-bg: #101827;
    --pe-border: rgba(148, 163, 184, 0.18);
    --pe-border-strong: rgba(148, 163, 184, 0.28);
    --pe-text: #f8fafc;
    --pe-text-body: #d8e2ee;
    --pe-text-muted: #a7b0c2;
    --pe-green: #16a34a;
    --pe-green-bright: #22c55e;
    --pe-control-bg: rgba(34, 197, 94, 0.1);
    --pe-control-bg-active: rgba(34, 197, 94, 0.16);
    --pe-control-border: rgba(34, 197, 94, 0.22);
    --pe-control-border-active: rgba(34, 197, 94, 0.52);
    --pe-control-on-accent: #ffffff;
    --pe-control-text: #f8fafc;
    --pe-field-bg: rgba(255, 255, 255, 0.04);
    --pe-input-bg: rgba(255, 255, 255, 0.08);
    --pe-input-border: rgba(148, 163, 184, 0.24);
    --pe-input-border-focus: rgba(34, 197, 94, 0.56);
    --pe-card-border-soft: rgba(148, 163, 184, 0.18);
    --pe-upload-bg: rgba(15, 122, 70, 0.1);
    --pe-upload-border: rgba(34, 197, 94, 0.36);
    --pe-success-soft-bg: rgba(34, 197, 94, 0.12);
    --pe-radius: 8px;
}

:root[data-theme="light"] {
    --validator-bg: #f6fbf8;
    --validator-panel: #ffffff;
    --validator-panel-soft: #eef7f2;
    --validator-border: rgba(15, 49, 38, 0.14);
    --validator-text: #10251d;
    --validator-muted: #60736b;
    --validator-green: #16a05d;
    --validator-green-dark: #0f7a46;
    --validator-preview-bg: #dbeee0;
    --validator-radius: 8px;
    --pe-nav-bg: rgba(255, 255, 255, 0.94);
    --pe-nav-shadow: 0 10px 26px rgba(15, 49, 38, 0.08);
    --pe-bg: #f6fbf8;
    --pe-surface: #ffffff;
    --pe-surface-strong: #ffffff;
    --pe-card-bg: #ffffff;
    --pe-border: rgba(15, 49, 38, 0.14);
    --pe-border-strong: rgba(15, 49, 38, 0.22);
    --pe-text: #10251d;
    --pe-text-body: #1f352c;
    --pe-text-muted: #60736b;
    --pe-green: #0f7a46;
    --pe-green-bright: #128f52;
    --pe-control-bg: rgba(15, 122, 70, 0.06);
    --pe-control-bg-active: rgba(15, 122, 70, 0.14);
    --pe-control-border: rgba(15, 49, 38, 0.14);
    --pe-control-border-active: #0f7a46;
    --pe-control-on-accent: #ffffff;
    --pe-control-text: #10251d;
    --pe-field-bg: #f6fbf8;
    --pe-input-bg: #ffffff;
    --pe-input-border: rgba(15, 49, 38, 0.18);
    --pe-input-border-focus: rgba(15, 122, 70, 0.55);
    --pe-card-border-soft: rgba(15, 49, 38, 0.14);
    --pe-upload-bg: rgba(15, 122, 70, 0.08);
    --pe-upload-border: rgba(15, 122, 70, 0.3);
    --pe-success-soft-bg: rgba(15, 122, 70, 0.1);
    --pe-radius: 8px;
}

* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
}

body {
    background: var(--validator-bg);
    color: var(--validator-text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    margin: 0;
    overflow: hidden;
}

#pdf-validator-app {
    background: var(--validator-bg);
    display: flex;
    flex-direction: column;
    height: 100dvh;
    min-height: 100dvh;
}

#pdf-validator-app > .site-nav,
#pdf-validator-app > .site-footer {
    flex: 0 0 auto;
}

#pdf-validator-app > .site-footer {
    margin-top: 0;
}

.pdf-validator-shell {
    background:
        radial-gradient(circle at 12% 12%, rgba(34, 197, 94, 0.18), transparent 30%),
        linear-gradient(135deg, rgba(7, 19, 15, 0.98), rgba(17, 24, 39, 0.96));
    display: grid;
    flex: 1 1 auto;
    grid-template-columns: minmax(390px, 430px) minmax(0, 1fr);
    min-height: 0;
    overflow: hidden;
}

.pdf-validator-sidebar {
    align-content: start;
    background: color-mix(in srgb, var(--validator-panel) 92%, transparent);
    border-right: 1px solid var(--validator-border);
    display: grid;
    gap: 18px;
    min-height: 0;
    min-width: 0;
    overflow-x: hidden;
    overflow-y: auto;
    padding: 24px 28px;
}

.pdf-validator-panel {
    border-bottom: 1px solid var(--validator-border);
    display: grid;
    gap: 14px;
    min-width: 0;
    padding-bottom: 18px;
}

.pdf-validator-panel:last-child {
    border-bottom: 0;
}

.pdf-validator-panel h1,
.pdf-validator-panel h2 {
    color: var(--validator-text);
    font-weight: 900;
    letter-spacing: 0;
    line-height: 1.12;
    margin: 0;
}

.pdf-validator-panel h1 {
    font-size: 1.85rem;
}

.pdf-validator-panel h2 {
    font-size: 1rem;
    text-transform: uppercase;
}

.pdf-validator-panel p {
    color: var(--validator-muted);
    font-size: 0.93rem;
    font-weight: 650;
    line-height: 1.55;
    margin: 0;
    overflow-wrap: break-word;
}

.pdf-validator-form .file-field {
    background: linear-gradient(180deg, var(--pe-upload-bg), rgba(15, 122, 70, 0.03));
    border: 1px dashed var(--pe-upload-border);
    border-radius: var(--pe-radius);
    display: grid;
    gap: 9px;
    padding: 11px;
    transition: background 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
}

.pdf-validator-form .file-field:hover,
.pdf-validator-form .file-field:focus-within {
    background: rgba(15, 122, 70, 0.14);
    border-color: var(--pe-control-border-active);
    box-shadow: 0 0 0 3px var(--pe-success-soft-bg);
}

.pdf-validator-form .file-field span {
    color: var(--validator-text);
    font-size: 0.72rem;
    font-weight: 900;
    text-transform: uppercase;
}

.pdf-validator-form .file-field small {
    color: var(--pe-text-body);
    font-size: 0.72rem;
    font-weight: 800;
    line-height: 1.35;
}

.pdf-validator-form input[type="file"] {
    appearance: none;
    -webkit-appearance: none;
    background: var(--pe-input-bg);
    border: 1px solid var(--pe-input-border);
    border-radius: 7px;
    color: var(--pe-text-body);
    cursor: pointer;
    font: inherit;
    font-size: 0.78rem;
    font-weight: 800;
    line-height: 1.2;
    min-height: 38px;
    min-width: 0;
    overflow: hidden;
    padding: 0 10px 0 0;
    transition: background 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
    width: 100%;
}

.pdf-validator-form input[type="file"]:hover,
.pdf-validator-form input[type="file"]:focus-visible {
    background: var(--pe-field-bg);
    border-color: var(--pe-input-border-focus);
    box-shadow: inset 0 0 0 1px var(--pe-control-border-active);
    outline: none;
}

.pdf-validator-form input[type="file"]::file-selector-button,
.pdf-validator-form input[type="file"]::-webkit-file-upload-button {
    appearance: none;
    -webkit-appearance: none;
    background: linear-gradient(135deg, var(--pe-green), var(--pe-green-bright));
    border: 0;
    border-right: 1px solid var(--pe-control-border-active);
    color: var(--pe-control-on-accent);
    cursor: pointer;
    font: inherit;
    font-weight: 900;
    margin: 0 12px 0 0;
    min-height: 38px;
    padding: 0 14px;
    text-shadow: 0 1px 0 rgba(0, 0, 0, 0.18);
    transition: filter 0.16s ease, transform 0.16s ease, box-shadow 0.16s ease;
}

.pdf-validator-form input[type="file"]:hover::file-selector-button,
.pdf-validator-form input[type="file"]:hover::-webkit-file-upload-button {
    box-shadow: 0 8px 18px rgba(15, 122, 70, 0.24);
    filter: brightness(1.06);
}

.pdf-validator-form button,
.pdf-validator-downloads a {
    align-items: center;
    background: var(--validator-green-dark);
    border: 1px solid var(--validator-green-dark);
    border-radius: var(--validator-radius);
    color: #ffffff;
    cursor: pointer;
    display: inline-flex;
    font: inherit;
    font-weight: 900;
    justify-content: center;
    min-height: 44px;
    padding: 0 16px;
    text-decoration: none;
    transition: background 150ms ease, border-color 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}

.pdf-validator-form button:hover:not(:disabled),
.pdf-validator-form button:focus-visible:not(:disabled),
.pdf-validator-downloads a:hover,
.pdf-validator-downloads a:focus-visible {
    background: var(--validator-green);
    border-color: var(--validator-green);
    box-shadow: 0 14px 30px rgba(34, 197, 94, 0.22);
    outline: none;
    transform: translateY(-1px);
}

.pdf-validator-form button:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.pdf-validator-file,
.pdf-validator-job {
    color: var(--validator-text) !important;
    font-weight: 850 !important;
}

.pdf-validator-status {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.22);
    border-radius: var(--validator-radius);
    color: var(--validator-text);
    font-size: 0.88rem;
    font-weight: 760;
    line-height: 1.45;
    overflow-wrap: break-word;
    padding: 11px 12px;
}

.pdf-validator-status[data-tone="error"] {
    background: rgba(225, 29, 72, 0.12);
    border-color: rgba(225, 29, 72, 0.3);
}

.pdf-validator-steps {
    display: grid;
    gap: 12px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.pdf-validator-steps li {
    color: var(--validator-muted);
    font-size: 0.9rem;
    font-weight: 680;
    line-height: 1.5;
    padding-left: 28px;
    position: relative;
}

.pdf-validator-steps li::before {
    align-items: center;
    border: 1px solid var(--validator-green);
    border-radius: 999px;
    color: var(--validator-green);
    content: "✓";
    display: inline-flex;
    font-size: 0.7rem;
    font-weight: 900;
    height: 17px;
    justify-content: center;
    left: 0;
    position: absolute;
    top: 2px;
    width: 17px;
}

.pdf-validator-metrics {
    gap: 12px;
}

.pdf-validator-downloads {
    display: grid;
    gap: 8px;
}

.pdf-validator-downloads a {
    background: transparent;
    color: var(--validator-green);
}

.pdf-validator-stat {
    align-items: center;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--validator-border);
    border-radius: var(--validator-radius);
    display: flex;
    justify-content: space-between;
    min-height: 50px;
    padding: 10px 14px;
}

.pdf-validator-stat strong {
    color: var(--validator-green);
    font-size: 1.03rem;
    font-weight: 900;
}

.pdf-validator-stat span {
    color: var(--validator-muted);
    font-size: 0.72rem;
    font-weight: 900;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.pdf-validator-preview {
    min-height: 0;
    position: relative;
}

.pdf-validator-preview-frame {
    background: var(--validator-preview-bg);
    height: 100%;
    min-height: 0;
    overflow: hidden;
    position: relative;
}

.pdf-validator-native-frame {
    border: 0;
    display: block;
    height: 100%;
    min-height: 0;
    width: 100%;
}

.pdf-validator-preview-empty {
    align-items: center;
    background: rgba(15, 23, 42, 0.88);
    border: 1px solid var(--validator-border);
    border-radius: var(--validator-radius);
    color: var(--validator-muted);
    display: inline-flex;
    font-weight: 850;
    left: 50%;
    max-width: min(420px, calc(100% - 32px));
    padding: 16px 18px;
    position: absolute;
    text-align: center;
    top: 34px;
    transform: translateX(-50%);
    z-index: 2;
}

@media (max-width: 900px) {
    body {
        overflow: auto;
    }

    #pdf-validator-app {
        height: auto;
    }

    .pdf-validator-shell {
        grid-template-columns: 1fr;
        overflow: visible;
    }

    .pdf-validator-sidebar {
        border-right: 0;
        border-bottom: 1px solid var(--validator-border);
        overflow: visible;
    }

    .pdf-validator-preview-frame,
    .pdf-validator-native-frame {
        height: min(620px, 72dvh);
        min-height: 420px;
    }
}

@media (max-width: 560px) {
    .pdf-validator-sidebar {
        padding: 18px;
    }

    .pdf-validator-panel h1 {
        font-size: 1.55rem;
    }

    .pdf-validator-stat {
        align-items: start;
        display: grid;
        gap: 4px;
    }
}