@font-face {
    font-family: "RobotoLocal";
    src: url("../fonts/roboto-v30-latin-regular.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "RobotoLocal";
    src: url("../fonts/roboto-v30-latin-700.woff2") format("woff2");
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

:root {
    --page-bg: #0f172a;
    --page-bg-alt: #1e293b;
    --bg-accent-a: #164e63;
    --bg-accent-b: #3f1d2e;
    --panel-bg: rgba(11, 18, 32, 0.82);
    --panel-muted: rgba(15, 23, 42, 0.88);
    --border: #334155;
    --border-strong: #475569;
    --text: #e5e7eb;
    --text-muted: #94a3b8;
    --heading: #f8fafc;
    --accent: #0ea5e9;
    --accent-hover: #0284c7;
    --danger-bg: rgba(69, 26, 26, 0.82);
    --danger-border: #7f1d1d;
    --danger-text: #fecaca;
    --success-bg: rgba(20, 83, 45, 0.75);
    --success-border: #166534;
    --success-text: #dcfce7;
    --shadow: 0 20px 40px rgba(0, 0, 0, 0.32);
    --radius-lg: 14px;
    --radius-md: 10px;
    --radius-sm: 8px;
    --content-width: 1080px;
    --input-bg: #0f172a;
    --input-text: #e5e7eb;
    --focus-border: #38bdf8;
    --focus-ring: rgba(14, 165, 233, 0.14);
}

@media (prefers-color-scheme: dark) {
    :root {
        --page-bg: #0f172a;
        --page-bg-alt: #1e293b;
        --bg-accent-a: #164e63;
        --bg-accent-b: #3f1d2e;
        --panel-bg: rgba(11, 18, 32, 0.82);
        --panel-muted: rgba(15, 23, 42, 0.88);
        --border: #334155;
        --border-strong: #475569;
        --text: #e5e7eb;
        --text-muted: #94a3b8;
        --heading: #f8fafc;
        --accent: #38bdf8;
        --accent-hover: #0ea5e9;
        --danger-bg: rgba(69, 26, 26, 0.82);
        --danger-border: #7f1d1d;
        --danger-text: #fecaca;
        --success-bg: rgba(20, 83, 45, 0.75);
        --success-border: #166534;
        --success-text: #dcfce7;
        --shadow: 0 20px 40px rgba(0, 0, 0, 0.32);
        --input-bg: #0f172a;
        --input-text: #eef1f4;
        --focus-border: #38bdf8;
        --focus-ring: rgba(14, 165, 233, 0.14);
    }
}

* {
    box-sizing: border-box;
}

html {
    color-scheme: light dark;
}

html[data-theme="light"] {
    color-scheme: light;
    --page-bg: #0f172a;
    --page-bg-alt: #1e293b;
    --bg-accent-a: #164e63;
    --bg-accent-b: #3f1d2e;
    --panel-bg: rgba(11, 18, 32, 0.82);
    --panel-muted: rgba(15, 23, 42, 0.88);
    --border: #334155;
    --border-strong: #475569;
    --text: #e5e7eb;
    --text-muted: #94a3b8;
    --heading: #f8fafc;
    --accent: #0ea5e9;
    --accent-hover: #0284c7;
    --danger-bg: rgba(69, 26, 26, 0.82);
    --danger-border: #7f1d1d;
    --danger-text: #fecaca;
    --success-bg: rgba(20, 83, 45, 0.75);
    --success-border: #166534;
    --success-text: #dcfce7;
    --shadow: 0 20px 40px rgba(0, 0, 0, 0.32);
    --input-bg: #0f172a;
    --input-text: #e5e7eb;
    --focus-border: #38bdf8;
    --focus-ring: rgba(14, 165, 233, 0.14);
}

html[data-theme="dark"] {
    color-scheme: dark;
    --page-bg: #111418;
    --panel-bg: #171c22;
    --panel-muted: #1d232b;
    --border: #2a313a;
    --border-strong: #39424d;
    --text: #eef1f4;
    --text-muted: #aeb7c1;
    --heading: #ffffff;
    --accent: #7eb2e6;
    --accent-hover: #9bc2ea;
    --danger-bg: #36211d;
    --danger-border: #6d433c;
    --danger-text: #f3c1b8;
    --success-bg: #1f2e25;
    --success-border: #3e5b49;
    --success-text: #c2e2cc;
    --shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
    --input-bg: #11161c;
    --input-text: #eef1f4;
    --focus-border: #7eb2e6;
    --focus-ring: rgba(126, 178, 230, 0.14);
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at 20% 15%, var(--bg-accent-a) 0%, transparent 34%),
        radial-gradient(circle at 80% 85%, var(--bg-accent-b) 0%, transparent 34%),
        linear-gradient(135deg, var(--page-bg), var(--page-bg-alt));
    color: var(--text);
    font-family: "RobotoLocal", "Segoe UI", Arial, sans-serif;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

button,
input,
select,
textarea {
    font: inherit;
}

.page-shell {
    width: min(var(--content-width), calc(100% - 32px));
    margin: 0 auto;
    padding: 18px 0 28px;
}

.hero {
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.hero__inner {
    max-width: 760px;
}

.eyebrow,
.section-label {
    margin: 0 0 8px;
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.hero h1 {
    margin: 0;
    color: var(--heading);
    font-size: clamp(28px, 4vw, 40px);
    line-height: 1.08;
    letter-spacing: -0.04em;
}

.lead {
    margin: 8px 0 0;
    max-width: 620px;
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.5;
}

.theme-toggle {
    min-width: 112px;
    min-height: 36px;
    padding: 0 12px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--panel-bg);
    color: var(--text);
    cursor: pointer;
    transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
    outline: none;
    background: var(--panel-muted);
    border-color: var(--border-strong);
}

.layout-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    align-items: start;
}

.secondary-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    align-items: start;
}

.panel {
    background: var(--panel-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 16px;
    backdrop-filter: blur(6px);
}

.panel__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.panel h2 {
    margin: 0;
    color: var(--heading);
    font-size: 18px;
    line-height: 1.25;
}

.status-chip {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 10px;
    background: var(--panel-muted);
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-muted);
    font-size: 12px;
    white-space: nowrap;
}

#flash-container {
    margin-bottom: 10px;
    scroll-margin-top: 24px;
}

.flash {
    padding: 10px 12px;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-size: 14px;
    line-height: 1.45;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

.flash:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.flash--error {
    background: var(--danger-bg);
    border-color: var(--danger-border);
    color: var(--danger-text);
}

.flash--success {
    background: var(--success-bg);
    border-color: var(--success-border);
    color: var(--success-text);
}

.tts-form {
    display: grid;
    gap: 12px;
}

.field-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.field {
    display: grid;
    gap: 6px;
}

.fieldset {
    margin: 0;
    padding: 0;
    border: 0;
}

.fieldset legend {
    padding: 0;
    font-size: 14px;
    font-weight: 700;
    color: var(--heading);
    margin-bottom: 6px;
}

.field span {
    font-size: 14px;
    font-weight: 700;
    color: var(--heading);
}

.field select,
.field input[type="email"],
.field input[type="text"],
.field input[type="password"],
.field textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--input-bg);
    color: var(--input-text);
    transition: border-color 140ms ease, box-shadow 140ms ease;
    font-size: 14px;
}

.field select option,
.field select optgroup {
    background: var(--panel-bg);
    color: var(--text);
}

.field textarea {
    min-height: 170px;
    resize: vertical;
    line-height: 1.5;
}

.field select:hover,
.field input[type="email"]:hover,
.field input[type="text"]:hover,
.field input[type="password"]:hover,
.field textarea:hover,
.field select:focus,
.field input[type="email"]:focus,
.field input[type="text"]:focus,
.field input[type="password"]:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--focus-border);
    box-shadow: 0 0 0 3px var(--focus-ring);
}

.field input[type="range"] {
    width: 100%;
    accent-color: var(--accent);
}

.choice-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.choice-pill {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 12px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--panel-muted);
    color: var(--text);
    font-size: 13px;
    cursor: pointer;
    transition: border-color 140ms ease, background-color 140ms ease, color 140ms ease;
}

.choice-pill input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.choice-pill:has(input:checked) {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.choice-pill:has(input:focus-visible) {
    box-shadow: 0 0 0 3px var(--focus-ring);
}

.field__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    color: var(--text-muted);
    font-size: 12px;
    line-height: 1.45;
}

.captcha-block {
    padding: 8px 10px;
    border: 1px dashed var(--border-strong);
    border-radius: var(--radius-md);
    background: var(--panel-muted);
}

.captcha-block--floating {
    padding: 0;
    border: 0;
    background: transparent;
}

.captcha-block--floating .altcha {
    --altcha-color-base: var(--panel);
    --altcha-color-border: var(--border-strong);
    --altcha-color-text: var(--text);
}

.captcha-block--floating .altcha-checkbox input[type="checkbox"] {
    appearance: none;
    width: 40px;
    height: 22px;
    border: 0;
    border-radius: 999px;
    background: color-mix(in srgb, var(--text-muted) 42%, transparent);
    cursor: pointer;
    position: relative;
    transition: background-color 140ms ease;
}

.captcha-block--floating .altcha-checkbox input[type="checkbox"]::before {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    top: 3px;
    left: 3px;
    border-radius: 999px;
    background: var(--panel);
    box-shadow: 0 1px 3px rgba(0, 0, 0, .25);
    transition: transform 140ms ease;
}

.captcha-block--floating .altcha-checkbox input[type="checkbox"]:checked {
    background: var(--accent);
}

.captcha-block--floating .altcha-checkbox input[type="checkbox"]:checked::before {
    transform: translateX(18px);
}

.form-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 2px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    font-size: 13px;
    transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease;
}

.button:hover,
.button:focus-visible {
    outline: none;
    text-decoration: none;
}

.button--primary {
    background: var(--accent);
    color: #ffffff;
    font-weight: 700;
}

.button--primary:hover,
.button--primary:focus-visible {
    background: var(--accent-hover);
}

.button--ghost {
    background: var(--panel-bg);
    border-color: var(--border);
    color: var(--text);
}

.button--ghost:hover,
.button--ghost:focus-visible {
    border-color: var(--border-strong);
    background: var(--panel-muted);
}

.button[disabled] {
    opacity: 0.6;
    cursor: not-allowed;
}

.support-copy,
.result-note,
.footer {
    margin: 0;
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.55;
}

.account-summary {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 12px;
}

.account-summary__item,
.account-note {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--panel-muted);
}

.account-summary__item span {
    display: block;
    margin-bottom: 3px;
    color: var(--text-muted);
    font-size: 12px;
}

.account-summary__item strong {
    color: var(--heading);
    font-size: 14px;
    line-height: 1.5;
    word-break: break-word;
}

.account-copy,
.account-note {
    margin: 0 0 12px;
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.55;
}

.stack-form {
    display: grid;
    gap: 10px;
}

.account-details {
    margin-top: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--panel-muted);
    overflow: hidden;
}

.account-details__summary {
    display: flex;
    align-items: center;
    min-height: 38px;
    padding: 0 12px;
    color: var(--heading);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    list-style: none;
}

.account-details__summary::-webkit-details-marker {
    display: none;
}

.account-details__summary::after {
    content: "+";
    margin-left: auto;
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1;
}

.account-details[open] .account-details__summary::after {
    content: "−";
}

.account-details__content {
    padding: 0 12px 12px;
    border-top: 1px solid var(--border);
}

.inline-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.result-stack {
    display: grid;
    gap: 12px;
}

.result-metadata {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.result-metadata div,
audio {
    background: var(--panel-muted);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 10px 12px;
}

.result-metadata span {
    display: block;
    margin-bottom: 3px;
    color: var(--text-muted);
    font-size: 12px;
}

.result-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.footer {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.footer p + p {
    margin-top: 8px;
}

.document-shell {
    width: min(860px, calc(100% - 32px));
    margin: 0 auto;
    padding: 28px 0 40px;
}

.document-header {
    margin-bottom: 24px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border);
}

.document-header h1 {
    margin: 0;
    font-size: clamp(28px, 4vw, 40px);
    line-height: 1.12;
    letter-spacing: -0.04em;
    color: var(--heading);
}

.document-meta {
    margin: 10px 0 0;
    color: var(--text-muted);
    font-size: 15px;
}

.document-panel {
    background: var(--panel-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 24px;
}

.document-content {
    color: var(--text);
    line-height: 1.7;
    font-size: 16px;
}

.document-content h2,
.document-content h3 {
    margin: 28px 0 10px;
    color: var(--heading);
    line-height: 1.25;
}

.document-content h2 {
    font-size: 24px;
}

.document-content h3 {
    font-size: 18px;
}

.document-content p,
.document-content ul {
    margin: 0 0 14px;
}

.document-content ul {
    padding-left: 22px;
}

.document-nav {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 14px;
}

.toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: end;
    gap: 14px;
    margin-bottom: 22px;
}

.toolbar .field {
    min-width: 160px;
}

.toolbar .button {
    min-width: 140px;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.summary-card {
    background: var(--panel-muted);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px;
}

.summary-card span {
    display: block;
    margin-bottom: 4px;
    color: var(--text-muted);
    font-size: 13px;
}

.summary-card strong {
    color: var(--heading);
    font-size: 22px;
    line-height: 1.2;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.data-table th,
.data-table td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.data-table th {
    background: var(--panel-muted);
    color: var(--heading);
    font-size: 14px;
}

.data-table td {
    color: var(--text);
    font-size: 15px;
}

.data-table tr:last-child td {
    border-bottom: 0;
}

.data-table td.is-numeric,
.data-table th.is-numeric {
    text-align: right;
}

.empty-state {
    padding: 16px;
    border: 1px dashed var(--border-strong);
    border-radius: var(--radius-md);
    color: var(--text-muted);
    background: var(--panel-muted);
}

[hidden] {
    display: none !important;
}

.is-loading .button--primary span::after {
    content: "…";
}

@media (max-width: 760px) {
    .page-shell {
        width: min(100%, calc(100% - 20px));
        padding-top: 14px;
    }

    .document-shell {
        width: min(100%, calc(100% - 20px));
        padding-top: 20px;
    }

    .field-grid,
    .secondary-grid,
    .result-metadata,
    .summary-grid,
    .account-summary,
    .form-actions,
    .result-actions {
        grid-template-columns: 1fr;
        flex-direction: column;
        align-items: stretch;
    }

    .header-row,
    .panel__header {
        flex-direction: column;
        align-items: stretch;
    }

    .hero h1 {
        font-size: 30px;
    }

    .lead {
        font-size: 14px;
    }
}