/* Self-hosted Plus Jakarta Sans (v12) — replaces Google Fonts CDN */
/* cyrillic-ext */
@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url('../fonts/PlusJakartaSans-cyrillic-ext.woff2') format('woff2');
  unicode-range: U+0460-052F, U+1C80-1C8A, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
}
/* vietnamese */
@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url('../fonts/PlusJakartaSans-vietnamese.woff2') format('woff2');
  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB;
}
/* latin-ext */
@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url('../fonts/PlusJakartaSans-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url('../fonts/PlusJakartaSans-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
    color-scheme: dark;
    --font-sans: 'Plus Jakarta Sans', 'Segoe UI', system-ui, sans-serif;
    --space-1: 0.375rem;
    --space-2: 0.625rem;
    --space-3: 0.875rem;
    --space-4: 1.125rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-7: 2.5rem;
    --radius-sm: 1rem;
    --radius-md: 1.25rem;
    --radius-lg: 1.5rem;
    --radius-pill: 999rem;
    --line-width: 0.0625rem;
    --control-padding: 0.875rem 1.125rem;
    --panel-padding: 1.5rem;
    --page-max: 60rem;
    --page-wide-max: 75rem;
    --logo-box-height: 4.75rem;
    --surface-border: var(--line-width) solid var(--panel-border);
    --logo-shadow: 0 0.625rem 1.5rem rgba(16, 27, 49, 0.14);
    --bg: #151d2f;
    --panel: #1a2236;
    --panel-soft: #202a40;
    --panel-border: #34415b;
    --card-highlight: rgba(199, 214, 245, 0.22);
    --nav-hover-bg: #25314c;
    --nav-hover-border: #51627f;
    --text: #e7edf8;
    --heading: #ffffff;
    --muted: #95a2bb;
    --accent: #c7d6f5;
    --accent-strong: #8fa6d6;
    --button-bg: #c7d6f5;
    --button-bg-hover: #d7e2f8;
    --button-text: #101b31;
    --danger: #ff8f89;
    --danger-bg: rgba(255, 143, 137, 0.12);
    --danger-border: rgba(255, 143, 137, 0.28);
    --success: #b6f0d0;
    --success-bg: rgba(182, 240, 208, 0.1);
    --success-border: rgba(182, 240, 208, 0.22);
    --disabled-bg: #3e4a61;
    --disabled-text: #a6b1c6;
    --table-head-bg: #202b43;
    --table-row-alt: #1e2940;
    --shadow: 0 0.875rem 2rem rgba(0, 0, 0, 0.28);
    --focus-ring: 0 0 0 0.25rem rgba(199, 214, 245, 0.18);
}

@media (prefers-color-scheme: light) {
    :root {
        color-scheme: light;
        --bg: #f8f9fb;
        --panel: #ffffff;
        --panel-soft: #f3f6fa;
        --panel-border: #e3e6ec;
        --card-highlight: rgba(25, 40, 71, 0.12);
        --nav-hover-bg: #edf2f8;
        --nav-hover-border: #c8d0dc;
        --text: #192847;
        --heading: #222326;
        --muted: #7f8aa3;
        --accent: #192847;
        --accent-strong: #101b31;
        --button-bg: #192847;
        --button-bg-hover: #101b31;
        --button-text: #ffffff;
        --danger: #b42318;
        --danger-bg: rgba(180, 35, 24, 0.08);
        --danger-border: rgba(180, 35, 24, 0.18);
        --success: #1f7a51;
        --success-bg: rgba(31, 122, 81, 0.08);
        --success-border: rgba(31, 122, 81, 0.16);
        --disabled-bg: #c7cdd8;
        --disabled-text: #66728b;
        --table-head-bg: #eef2f7;
        --table-row-alt: #f8fafc;
        --shadow: 0 0.875rem 2rem rgba(25, 40, 71, 0.06);
        --focus-ring: 0 0 0 0.25rem rgba(25, 40, 71, 0.1);
    }
}

* {
    box-sizing: border-box;
}

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

body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--text);
    background: var(--bg);
}

.page {
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    padding: var(--space-6) var(--space-5);
}

.page,
.header-row,
.brand,
.admin-nav,
.form-inline,
.placeholder-list,
.admin-links {
    display: flex;
    flex-wrap: wrap;
}

.card,
.brand-copy,
.card-body,
.form,
.field-row,
.field,
.details {
    display: grid;
}

.card {
    width: 100%;
    max-width: var(--page-max);
    background: var(--panel);
    border: var(--surface-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow);
    gap: var(--space-5);
    position: relative;
    overflow: hidden;
    animation: card-rise 0.45s ease;
}

.card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: var(--line-width);
    background: var(--card-highlight);
}

.card.card-wide {
    max-width: var(--page-wide-max);
}

@keyframes card-rise {
    from {
        opacity: 0;
        transform: translateY(14px);
    }

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

.header-row {
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-5);
}

.brand {
    align-items: center;
    gap: var(--space-5);
    min-width: 0;
}

.logo-wrap,
.header-event {
    min-height: var(--logo-box-height);
}

.logo-wrap,
button,
.button {
    box-shadow: var(--logo-shadow);
}

.admin-nav a,
.banner,
.placeholder-pill {
    border: var(--surface-border);
    background: var(--panel-soft);
}

.logo-wrap {
    background: #ffffff;
    border-radius: var(--space-4);
    border: var(--line-width) solid rgba(25, 40, 71, 0.08);
    display: grid;
    place-items: center;
    padding: 0.75rem 1rem;
    text-decoration: none;
    flex: 0 0 auto;
}

.logo {
    height: 3rem;
    width: auto;
    display: block;
}

.brand-copy {
    gap: var(--space-2);
    min-width: 0;
}

.page-title {
    margin: 0;
    color: var(--heading);
    font-size: clamp(1.7rem, 2.7vw, 2.55rem);
    line-height: 1.08;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.form-title { text-align: center; }

.card-body {
    gap: var(--space-4);
}

.page .card-body { width: 100%; max-width: 54rem; justify-self: center; }

body.is-admin .card-body { width: 100%; justify-self: stretch; }

.admin-nav {
    gap: var(--space-2);
    align-items: center;
}

.admin-nav a {
    color: var(--text);
    text-decoration: none;
    padding: 0.625rem 1rem;
    border-radius: var(--radius-pill);
    font-weight: 600;
    transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.admin-nav a:hover,
.admin-nav a:focus-visible {
    border-color: var(--nav-hover-border);
    color: var(--heading);
    background: var(--nav-hover-bg);
}

.banner {
    padding: 0.625rem 1.125rem;
    border-radius: var(--radius-pill);
    margin: 0;
    font-weight: 700;
    font-size: 1rem;
    line-height: 1.3;
    color: var(--heading);
    width: fit-content;
    max-width: 100%;
}

.header-event {
    display: flex;
    align-items: center;
}

.form {
    gap: var(--space-5);
    --form-field-bg: var(--panel-soft);
    --form-focus-border: var(--accent-strong);
    --form-submit-margin-top: 0;
}

.form-signup { --form-submit-margin-top: var(--space-1); }

.form button {
    width: auto;
    justify-self: center;
}

.form button[type="submit"] {
    margin-top: var(--form-submit-margin-top);
}

.field-row {
    gap: var(--space-4);
    --field-row-columns: 2;
    grid-template-columns: repeat(var(--field-row-columns), minmax(0, 1fr));
}

.field-row.three-col { --field-row-columns: 3; }

.field-row.four-col { --field-row-columns: 4; }

.field-row.event-meta {
    grid-template-columns: minmax(0, 1fr) minmax(0, 2.4fr) minmax(0, 1fr) minmax(13.125rem, 1fr);
}

.field-row.align-end { align-items: end; }

.checkbox-stack { gap: var(--space-3); }

.field-slug input { max-width: 11.25rem; }

.field-year input { max-width: 8.25rem; }

.form-inline {
    gap: var(--space-4);
    align-items: flex-end;
    margin-bottom: var(--space-2);
}

.field {
    gap: 0.5rem;
    min-width: 0;
}

.field label {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--muted);
}

.checkbox-stack label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--text);
    font-weight: 600;
}

.field input,
.field select,
.field textarea {
    width: 100%;
    padding: var(--control-padding);
    border: var(--surface-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    line-height: 1.5;
    background: var(--form-field-bg);
    color: var(--text);
    font-family: var(--font-sans);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.field input::placeholder,
.field textarea::placeholder {
    color: var(--muted);
}

.field input:focus,
.field input:focus-visible,
.field select:focus,
.field select:focus-visible,
.field textarea:focus,
.field textarea:focus-visible {
    outline: none;
    border-color: var(--form-focus-border);
    box-shadow: var(--focus-ring);
}

.field input[type="checkbox"] {
    width: 1.125rem;
    height: 1.125rem;
    margin: 0.125rem 0 0;
    padding: 0;
    accent-color: var(--accent-strong);
    border-radius: var(--space-1);
    flex: 0 0 auto;
}

.field label > input[type="checkbox"] {
    margin-right: 0.75rem;
}

.field textarea {
    min-height: 7.5rem;
    resize: vertical;
}

.field textarea#nda_file_contents {
    min-height: 20rem;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.placeholder-list {
    gap: var(--space-2);
    margin-top: 0.125rem;
}

.placeholder-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem var(--space-3);
    border-radius: var(--radius-pill);
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.9rem;
    color: var(--text);
    user-select: all;
    cursor: pointer;
}

.help-text {
    margin: 0;
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.5;
    padding-top: 0.125rem;
}

.field-error {
    min-height: 1.2em;
    color: var(--danger);
    font-size: 0.92rem;
    font-weight: 700;
}

.section-box,
.details,
.table,
.nda {
    border: var(--surface-border);
    background: var(--panel-soft);
    box-shadow: var(--shadow);
}

.section-box,
.details {
    padding: var(--panel-padding);
    border-radius: var(--radius-md);
}

.details { gap: var(--space-4); }

.details h2 {
    margin: 0;
    color: var(--heading);
    font-size: 1.25rem;
    line-height: 1.2;
    font-weight: 800;
    letter-spacing: -0.02em;
}

button,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.625rem;
    padding: 0.875rem 1.375rem;
    border: var(--line-width) solid transparent;
    border-radius: var(--radius-pill);
    background: var(--button-bg);
    color: var(--button-text);
    cursor: pointer;
    text-decoration: none;
    font-size: 0.98rem;
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -0.01em;
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

button:hover,
.button:hover,
button:focus-visible,
.button:focus-visible {
    background: var(--button-bg-hover);
    transform: translateY(-1px);
}

button:disabled,
.button:disabled {
    background: var(--disabled-bg);
    color: var(--disabled-text);
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.actions { margin-bottom: var(--space-4); }

.inline-form { display: inline; margin-left: var(--space-2); }

.nda-config { display: block; }

.admin-home { text-align: center; }

.admin-links { gap: var(--space-3); justify-content: center; }

.alert {
    padding: var(--space-4) var(--radius-md);
    border-radius: var(--radius-md);
    margin: 0;
    font-weight: 600;
    line-height: 1.55;
}

.alert p,
.alert ul {
    margin: 0;
}

.alert ul {
    padding-left: 1.15rem;
}

.alert p + ul,
.alert ul + p {
    margin-top: var(--space-2);
}

.alert-success { border: var(--line-width) solid var(--success-border); background: var(--success-bg); color: var(--success); }

.alert-error { border: var(--line-width) solid var(--danger-border); background: var(--danger-bg); color: var(--danger); }

.table {
    width: 100%;
    border-collapse: collapse;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.table th,
.table td {
    padding: var(--radius-sm) var(--space-4);
    border-bottom: var(--surface-border);
    text-align: left;
    vertical-align: top;
}

.table th {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: var(--table-head-bg);
}

.table tbody tr:last-child td,
.table tbody tr:last-child th { border-bottom: none; }

.table tbody tr:nth-child(even) td { background: var(--table-row-alt); }

.nda {
    border-radius: var(--radius-lg);
    padding: clamp(1.375rem, 3vw, 2rem);
    line-height: 1.6;
}

.nda h1,
.nda h2,
.nda h3,
.nda h4 {
    color: var(--heading);
    line-height: 1.18;
    letter-spacing: -0.02em;
}

.nda h1 {
    font-size: clamp(1.7rem, 3vw, 2.35rem);
}

.nda h2 {
    font-size: 1.25rem;
    margin-top: 2rem;
}

.nda h3 {
    font-size: 1.05rem;
    margin-top: 1.4rem;
}

.nda p,
.nda li {
    color: var(--text);
}

.nda-text {
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
}

.nda blockquote {
    border-left: 4px solid var(--panel-border);
    margin: 1.25rem 0;
    padding: 0.2rem 0 0.2rem 1rem;
    color: var(--muted);
}

.nda hr {
    border: 0;
    border-top: var(--surface-border);
    margin: 1.75rem 0;
}

a {
    color: var(--accent);
    text-underline-offset: 0.18em;
}

a:hover,
a:focus-visible {
    color: var(--heading);
}

.link-button {
    color: var(--accent);
    text-decoration: underline;
    cursor: pointer;
}

@media (max-width: 900px) {
    .field-row.event-meta {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .page {
        padding: var(--space-5) var(--radius-sm);
    }

    .card {
        padding: calc(var(--space-5) - 0.125rem) var(--space-4);
        gap: var(--space-4);
    }

    .header-row,
    .brand {
        flex-direction: column;
        align-items: flex-start;
    }

    .brand {
        gap: var(--space-4);
    }

    .page-title {
        font-size: clamp(1.45rem, 7vw, 2rem);
    }

    .header-event {
        min-height: 0;
    }

    .form-inline {
        flex-direction: column;
        align-items: stretch;
    }

    .field-row,
    .field-row.event-meta,
    .field-row.three-col,
    .field-row.four-col {
        grid-template-columns: 1fr;
    }

    .table {
        display: block;
        overflow-x: auto;
    }

    .table th,
    .table td {
        white-space: nowrap;
    }

    .nda {
        padding: var(--radius-md) var(--space-4);
    }
}