:root {
    color-scheme: light dark;
    --bg: var(--tg-theme-bg-color, #111827);
    --text: var(--tg-theme-text-color, #f9fafb);
    --hint: var(--tg-theme-hint-color, #9ca3af);
    --card: var(--tg-theme-secondary-bg-color, #1f2937);
    --button: var(--tg-theme-button-color, #2ea6ff);
    --button-text: var(--tg-theme-button-text-color, #ffffff);
    --danger: #ef4444;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

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

.app {
    width: min(760px, 100%);
    margin: 0 auto;
    padding: 20px 16px 40px;
}

.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.eyebrow {
    margin: 0 0 4px;
    color: var(--hint);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    margin-bottom: 0;
    font-size: 28px;
}

h2 {
    margin-bottom: 10px;
    font-size: 20px;
}

h3 {
    margin-bottom: 4px;
    font-size: 17px;
}

.card,
.status {
    padding: 16px;
    border-radius: 18px;
    background: var(--card);
    box-shadow: 0 12px 40px rgb(0 0 0 / 14%);
    margin-bottom: 14px;
}

.status {
    color: var(--hint);
}

.status.error {
    color: var(--danger);
}

label {
    display: grid;
    gap: 8px;
    margin-bottom: 12px;
    color: var(--hint);
}

input,
select,
textarea {
    width: 100%;
    border: 1px solid rgb(255 255 255 / 12%);
    border-radius: 12px;
    padding: 12px;
    background: rgb(0 0 0 / 16%);
    color: var(--text);
    font: inherit;
}

textarea {
    min-height: 72px;
    resize: vertical;
}

button {
    border: 0;
    border-radius: 12px;
    padding: 11px 14px;
    background: var(--button);
    color: var(--button-text);
    font: inherit;
    font-weight: 650;
    cursor: pointer;
}

.ghost-button {
    background: rgb(255 255 255 / 10%);
    color: var(--text);
}

.danger-button {
    background: var(--danger);
    margin-top: 8px;
}

.tabs,
.segmented {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 14px;
}

.segmented {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    margin: 12px 0 0;
}

.tab,
.segmented button {
    background: rgb(255 255 255 / 10%);
    color: var(--text);
}

.tab.active,
.segmented button.active {
    background: var(--button);
    color: var(--button-text);
}

.event-card p {
    margin-bottom: 12px;
    color: var(--hint);
}

.summary-group {
    margin-top: 12px;
}

.summary-group ul {
    margin: 8px 0 0;
    padding-left: 18px;
}

.empty {
    padding: 24px 16px;
    color: var(--hint);
    text-align: center;
}

.hidden {
    display: none !important;
}