:root {
    --color-bg: #DADADA;
    --color-surface: #ffffff;
    --color-surface-muted: #f7f1f1;
    --color-text: #2b1c1c;
    --color-text-muted: #6f5656;
    --color-heading: #5e1414;
    --color-border: #e4d6d6;

    --color-primary: #b52c2c;
    --color-primary-hover: #941f1f;
    --color-primary-soft: #f3dede;

    --color-link: #8f2121;
    --color-link-hover: #6f1818;

    --color-success: #237804;
    --color-success-bg: #f6ffed;
    --color-warning: #ad6800;
    --color-warning-bg: #fff7e6;
    --color-danger: #a61d24;
    --color-danger-bg: #fff1f0;

    --shadow-sm: 0 1px 2px rgba(60, 20, 20, 0.10);
    --shadow-md: 0 4px 12px rgba(60, 20, 20, 0.16);

    --radius-sm: 4px;
    --radius-md: 8px;

    --font-body: 'Roboto', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;

    --container-max: 1100px;
}
/* ---------- Base / Reset ---------- */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    height: 100%;
    font-size: 16px;
}

body {
    min-height: 100%;
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    line-height: 1.45;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img,
svg,
iframe {
    display: block;
    max-width: 100%;
}

iframe {
    border: 0;
}

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

a:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}

p {
    margin: 0 0 var(--space-4);
}

ul,
ol {
    margin: 0 0 var(--space-4);
    padding-left: 1.25rem;
}

code,
pre,
kbd,
samp {
    font-family: var(--font-mono);
}

hr {
    border: 0;
    border-top: 1px solid var(--color-border);
    margin: var(--space-5) 0;
}

/* ---------- Typography ---------- */

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0 0 var(--space-3);
    color: var(--color-heading);
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.5rem;
}

h3 {
    font-size: 1.25rem;
}

h4,
h5,
h6 {
    font-size: 1rem;
}

.small,
.text-small {
    font-size: 0.875rem;
}

.muted,
.text-muted {
    color: var(--color-text-muted);
}

/* ---------- Layout ---------- */

.page {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-5);
}

.page--narrow {
    max-width: 760px;
}

.page--wide {
    max-width: 1280px;
}

.surface {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.surface--padded {
    padding: var(--space-5);
}

.stack > * + * {
    margin-top: var(--space-4);
}

.inline-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    align-items: center;
}

.split {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
}

.split--top {
    align-items: flex-start;
}

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

.grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* ---------- Header / Navigation ---------- */

.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.site-header__inner {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-3) var(--space-5);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
}

.brand {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-heading);
    letter-spacing: 0.01em;
}

.brand a {
    color: inherit;
    text-decoration: none;
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.nav a {
    font-weight: 500;
}

.nav .is-active {
    color: var(--color-heading);
    font-weight: 700;
}

/* ---------- Buttons ---------- */

button,
input[type="submit"],
input[type="button"],
input[type="reset"],
.button {
    appearance: none;
    border: 1px solid var(--color-primary);
    background: var(--color-primary);
    color: #ffffff;
    border-radius: var(--radius-sm);
    padding: 0.55rem 0.9rem;
    font: inherit;
    font-weight: 600;
    line-height: 1.2;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

button:hover,
input[type="submit"]:hover,
input[type="button"]:hover,
input[type="reset"]:hover,
.button:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: #ffffff;
    text-decoration: none;
}

button:disabled,
input:disabled,
.button.is-disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.button--secondary {
    background: var(--color-surface);
    color: var(--color-primary);
    border-color: var(--color-border);
}

.button--secondary:hover {
    background: var(--color-surface-muted);
    color: var(--color-primary-hover);
    border-color: var(--color-border);
}

.button--danger {
    background: var(--color-danger);
    border-color: var(--color-danger);
}

.button--danger:hover {
    background: #821419;
    border-color: #821419;
}

/* ---------- Forms ---------- */

form {
    margin: 0;
}

fieldset {
    margin: 0;
    padding: 0;
    border: 0;
    min-width: 0;
}

legend {
    font-weight: 700;
    margin-bottom: var(--space-3);
}

label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: 600;
    color: var(--color-heading);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="time"],
input[type="search"],
input[type="url"],
input[type="number"],
select,
textarea {
    width: 100%;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: #ffffff;
    color: var(--color-text);
    padding: 0.625rem 0.75rem;
    font: inherit;
    line-height: 1.3;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

textarea {
    min-height: 110px;
    resize: vertical;
}

input[type="checkbox"],
input[type="radio"] {
    accent-color: var(--color-primary);
}

input:focus,
select:focus,
textarea:focus,
button:focus,
.button:focus,
a:focus {
    outline: 2px solid rgba(31, 79, 130, 0.25);
    outline-offset: 2px;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(31, 79, 130, 0.12);
}

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

.form-row--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.form-help {
    display: block;
    margin-top: var(--space-1);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* ---------- Cards / Panels ---------- */

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card__header {
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface);
}

.card__body {
    padding: var(--space-5);
}

.card__footer {
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--color-border);
    background: var(--color-surface-muted);
}

/* ---------- Tables ---------- */

.table-wrap {
    overflow-x: auto;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
}

th,
td {
    padding: 0.85rem 1rem;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--color-border);
}

th {
    background: var(--color-surface-muted);
    color: var(--color-heading);
    font-weight: 700;
    white-space: nowrap;
}

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

/* ---------- Alerts / Notices ---------- */

.alert {
    padding: 0.85rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    margin-bottom: var(--space-4);
}

.alert--success {
    background: var(--color-success-bg);
    color: var(--color-success);
    border-color: #b7eb8f;
}

.alert--warning {
    background: var(--color-warning-bg);
    color: var(--color-warning);
    border-color: #ffd591;
}

.alert--danger,
.alert--error {
    background: var(--color-danger-bg);
    color: var(--color-danger);
    border-color: #ffa39e;
}

.alert--info {
    background: #e6f4ff;
    color: #0958d9;
    border-color: #91caff;
}

/* ---------- Event List / Dashboard ---------- */

.section-title {
    margin: var(--space-5) 0 var(--space-3);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.event-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.event-list li + li {
    margin-top: var(--space-2);
}

.event-link {
    display: block;
    padding: 0.8rem 0.95rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    color: var(--color-text);
    text-decoration: none;
}

.event-link:hover {
    background: var(--color-surface-muted);
    border-color: #c7d2dd;
    text-decoration: none;
}

.event-link__title {
    font-weight: 600;
    color: var(--color-heading);
}

.event-link__meta {
    margin-top: var(--space-1);
    font-size: 0.92rem;
    color: var(--color-text-muted);
}

.badge {
    display: inline-block;
    padding: 0.18rem 0.45rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    line-height: 1.2;
    vertical-align: middle;
}

.badge--live {
    background: #d92d20;
    color: #ffffff;
}

.badge--muted {
    background: var(--color-surface-muted);
    color: var(--color-text-muted);
}

/* ---------- Event View ---------- */

.event-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--color-bg);
}

.event-topbar {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-3) var(--space-5);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.event-topbar__main h1 {
    margin: 0;
    font-size: 1.4rem;
}

.event-meta {
    margin-top: var(--space-1);
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.event-topbar__actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.event-frame-wrap {
    flex: 1;
    min-height: 0;
    padding: 0;
}

.event-frame {
    width: 100%;
    height: 100%;
    min-height: calc(100vh - 95px);
    background: #ffffff;
}

/* ---------- Login / Account ---------- */

.auth-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-5);
}

.auth-card {
    width: 100%;
    max-width: 430px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: var(--space-6);
}

.auth-card h1 {
    margin-bottom: var(--space-2);
}

.auth-card .muted {
    margin-bottom: var(--space-5);
}

/* ---------- Utility ---------- */

.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--space-1) !important; }
.mb-2 { margin-bottom: var(--space-2) !important; }
.mb-3 { margin-bottom: var(--space-3) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mb-5 { margin-bottom: var(--space-5) !important; }

.text-right { text-align: right !important; }
.text-center { text-align: center !important; }

.hidden {
    display: none !important;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
    .page {
        padding: var(--space-4);
    }

    .grid--2,
    .grid--3,
    .form-row,
    .form-row--3 {
        grid-template-columns: 1fr;
    }

    .site-header__inner,
    .event-topbar {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }

    .card__header,
    .card__body,
    .card__footer,
    .auth-card {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }
}

@media (max-width: 640px) {
    h1 {
        font-size: 1.6rem;
    }

    .event-topbar {
        align-items: stretch;
    }

    .event-topbar__actions {
        width: 100%;
        justify-content: flex-end;
    }

    .button,
    button,
    input[type="submit"],
    input[type="button"],
    input[type="reset"] {
        width: 100%;
    }

    .inline-actions .button,
    .inline-actions button,
    .inline-actions input[type="submit"],
    .inline-actions input[type="button"],
    .inline-actions input[type="reset"] {
        width: auto;
    }

    .auth-card {
        padding: var(--space-5);
    }
}