/* ═══════════════════════════════════════════════════════════════════════════
   Cylone Meet — Theme
   Colors: #FA6BDF · #D760F8 · #B382FB · #979AFF · #73D6FF
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
    --pink: #FA6BDF;
    --magenta: #D760F8;
    --purple: #B382FB;
    --periwinkle: #979AFF;
    --sky: #73D6FF;

    --bg: #0e0b1a;
    --bg-card: #17132a;
    --bg-card-hover: #1e1935;
    --bg-input: #1e1935;
    --border: #2d2650;
    --border-focus: var(--purple);

    --text: #eee8ff;
    --text-muted: #9a8ec0;
    --text-dim: #6b5f8a;

    --gradient: linear-gradient(135deg, var(--pink), var(--magenta), var(--purple), var(--periwinkle), var(--sky));
    --gradient-h: linear-gradient(90deg, var(--pink), var(--magenta), var(--purple), var(--periwinkle), var(--sky));
    --gradient-btn: linear-gradient(135deg, var(--magenta), var(--purple));

    --radius: 12px;
    --radius-sm: 8px;

    --slot-available: var(--purple);
    --slot-hover: var(--magenta);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    scrollbar-gutter: stable;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
}

/* Background glow */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 40% at 20% 10%, rgba(215, 96, 248, .12) 0%, transparent 70%),
        radial-gradient(ellipse 50% 50% at 80% 80%, rgba(115, 214, 255, .08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.app {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ─── Header ─────────────────────────────────────────────────────────────── */

.header {
    text-align: center;
    padding: 3rem 1rem 1.5rem;
}

.header-compact {
    padding: 1.2rem 1.5rem;
    text-align: left;
}

.logo {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
}

.logo-img {
    height: 40px;
    width: auto;
    display: block;
    filter: drop-shadow(0 0 12px rgba(215, 96, 248, .3));
}

.header-compact .logo-img {
    height: 32px;
}

.tagline {
    color: var(--text-muted);
    margin-top: .5rem;
    font-size: .95rem;
}

/* ─── Cards ──────────────────────────────────────────────────────────────── */

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem;
    backdrop-filter: blur(8px);
}

.card h2, .card h3 {
    margin-bottom: 1rem;
}

/* ─── Create Form ────────────────────────────────────────────────────────── */

.create-form-wrapper {
    max-width: 520px;
    margin: 0 auto;
    padding: 0 1rem 3rem;
    width: 100%;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: .4rem;
    font-size: .9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .04em;
}

input[type="text"] {
    width: 100%;
    padding: .7rem 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 1rem;
    transition: border-color .2s, box-shadow .2s;
    outline: none;
}

input[type="text"]:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(179, 130, 251, .2);
}

input[type="text"]::placeholder {
    color: var(--text-dim);
}

select {
    padding: .55rem .8rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: .95rem;
    outline: none;
    cursor: pointer;
}

select:focus {
    border-color: var(--border-focus);
}

.time-range {
    display: flex;
    align-items: center;
    gap: .75rem;
}

.time-range select {
    flex: 1;
}

.time-sep {
    color: var(--text-muted);
    font-size: .85rem;
}

/* ─── Calendar ───────────────────────────────────────────────────────────── */

.calendar-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: .75rem;
}

.calendar-nav span {
    font-weight: 600;
    font-size: .95rem;
}

.cal-nav-btn {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    width: 2rem;
    height: 2rem;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s, border-color .2s;
}

.cal-nav-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--purple);
}

.calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    user-select: none;
}

.calendar .day-label {
    text-align: center;
    font-size: .75rem;
    color: var(--text-dim);
    padding: .3rem 0;
    font-weight: 600;
    text-transform: uppercase;
}

.calendar .day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: .85rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all .15s;
    position: relative;
}

.calendar .day:hover:not(.disabled):not(.empty) {
    background: var(--bg-card-hover);
    border-color: var(--border);
}

.calendar .day.selected {
    background: var(--purple);
    color: #fff;
    font-weight: 600;
    border-color: var(--magenta);
    box-shadow: 0 0 10px rgba(179, 130, 251, .3);
}

.calendar .day.disabled {
    color: var(--text-dim);
    opacity: .35;
    cursor: default;
}

.calendar .day.empty {
    cursor: default;
}

.calendar .day.today::after {
    content: '';
    position: absolute;
    bottom: 3px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--sky);
}

.hint {
    font-size: .8rem;
    color: var(--text-dim);
    margin-top: .5rem;
}

/* ─── Selected Dates ─────────────────────────────────────────────────────── */

.selected-dates {
    margin-bottom: 1.5rem;
}

.selected-dates label {
    display: block;
    font-weight: 600;
    margin-bottom: .4rem;
    font-size: .85rem;
    color: var(--text-muted);
}

.date-chips {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}

.date-chip {
    background: rgba(179, 130, 251, .15);
    border: 1px solid rgba(179, 130, 251, .3);
    border-radius: 20px;
    padding: .2rem .65rem;
    font-size: .78rem;
    color: var(--purple);
    font-weight: 500;
}

/* ─── Buttons ────────────────────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .65rem 1.4rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: .95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-btn);
    color: #fff;
    box-shadow: 0 4px 20px rgba(179, 130, 251, .3);
}

.btn-primary:hover:not(:disabled) {
    box-shadow: 0 6px 28px rgba(179, 130, 251, .45);
    transform: translateY(-1px);
}

.btn-primary:disabled {
    opacity: .4;
    cursor: not-allowed;
    transform: none;
}

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
    padding: .45rem .9rem;
    font-size: .85rem;
}

.btn-ghost:hover {
    border-color: var(--purple);
    color: var(--text);
    background: rgba(179, 130, 251, .08);
}

.btn-sm {
    padding: .3rem .6rem;
    font-size: .78rem;
}

/* ─── Event Page ─────────────────────────────────────────────────────────── */

.event-page {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1rem 3rem;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.event-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.event-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
}

/* ─── Join Form ──────────────────────────────────────────────────────────── */

.join-form {
    display: flex;
    gap: .75rem;
}

.join-form input {
    flex: 1;
}

/* ─── Editor Toolbar ─────────────────────────────────────────────────────── */

.editor-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: .75rem;
    margin-bottom: .75rem;
}

.editor-user {
    font-size: .9rem;
    color: var(--text-muted);
}

.editor-user strong {
    color: var(--text);
}

.editor-legend {
    display: flex;
    gap: 1rem;
    font-size: .8rem;
    color: var(--text-muted);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: .35rem;
}

.legend-swatch {
    width: 14px;
    height: 14px;
    border-radius: 3px;
}

.legend-swatch.available {
    background: var(--purple);
    box-shadow: 0 0 6px rgba(179, 130, 251, .4);
}

.legend-swatch.unavailable {
    background: var(--bg-input);
    border: 1px solid var(--border);
}

/* ─── Availability Grid ──────────────────────────────────────────────────── */

.grid-container {
    margin-bottom: 1rem;
}

.grid-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
}

.availability-grid {
    border-collapse: collapse;
    width: 100%;
}

.availability-grid th {
    padding: .4rem .5rem;
    font-size: .75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-align: center;
    white-space: nowrap;
    position: sticky;
    top: 0;
    background: var(--bg);
    z-index: 2;
}

.availability-grid th:first-child {
    width: 1%;
    background: transparent;
}

.availability-grid th.date-header {
    font-size: .8rem;
    color: var(--text);
    padding-bottom: .1rem;
}

.availability-grid th.dow-header {
    font-size: .7rem;
    color: var(--text-dim);
    padding-top: 0;
    font-weight: 500;
}

.availability-grid .time-label {
    font-size: .72rem;
    color: var(--text-dim);
    text-align: right;
    padding-right: .5rem;
    white-space: nowrap;
    vertical-align: top;
    width: 1%;
}

.availability-grid .time-label.half-hour {
    color: transparent;
}

.availability-grid td.slot {
    height: 1.4rem;
    padding: 1px;
    background: transparent;
    border: none;
    cursor: pointer;
    position: relative;
}

.availability-grid td.slot::after {
    content: '';
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 4px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    transition: background .1s, border-color .1s, box-shadow .1s;
}

.availability-grid td.slot:hover::after {
    border-color: var(--purple);
}

.availability-grid td.slot.active::after {
    background: var(--purple);
    border-color: var(--magenta);
    box-shadow: 0 0 8px rgba(179, 130, 251, .3);
}

.availability-grid td.slot.dragging::after {
    background: var(--magenta);
    border-color: var(--pink);
}

/* Heatmap (group view) */
.heatmap td.slot {
    cursor: default;
}

.heatmap td.slot.heat-0::after { background: var(--bg-input); border-color: var(--border); }
.heatmap td.slot.heat-1::after { background: rgba(115, 214, 255, .25); border-color: rgba(115, 214, 255, .4); }
.heatmap td.slot.heat-2::after { background: rgba(151, 154, 255, .35); border-color: rgba(151, 154, 255, .5); }
.heatmap td.slot.heat-3::after { background: rgba(179, 130, 251, .45); border-color: rgba(179, 130, 251, .6); }
.heatmap td.slot.heat-4::after { background: rgba(215, 96, 248, .55); border-color: rgba(215, 96, 248, .7); }
.heatmap td.slot.heat-5::after { background: rgba(250, 107, 223, .65); border-color: rgba(250, 107, 223, .8); }

.heatmap td.slot:hover::after {
    outline: 2px solid var(--sky);
    outline-offset: -1px;
    z-index: 1;
}

/* ─── Group Info ─────────────────────────────────────────────────────────── */

.group-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.group-header-row h3 {
    margin-bottom: 0;
}

.group-header-row .btn {
    min-width: 11rem;
    justify-content: center;
    padding: .65rem 1.4rem;
    font-size: .95rem;
}

.group-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: .75rem;
    margin-bottom: 1rem;
    font-size: .85rem;
    color: var(--text-muted);
}

.heatmap-legend {
    display: flex;
    align-items: center;
    gap: 2px;
    font-size: .75rem;
}

.heatmap-legend::before { content: 'None'; margin-right: .35rem; }
.heatmap-legend::after { content: 'All'; margin-left: .35rem; }

.heatmap-legend .swatch {
    width: 18px;
    height: 12px;
    border-radius: 2px;
}

/* ─── Hover Info ─────────────────────────────────────────────────────────── */

.hover-info {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .75rem 1rem;
    font-size: .85rem;
    margin-top: .5rem;
}

.hover-info strong {
    color: var(--purple);
    font-size: .9rem;
}

.hover-info .name-list {
    margin-top: .3rem;
    color: var(--text-muted);
}

.hover-info .name-available {
    color: var(--sky);
}

/* ─── Footer ─────────────────────────────────────────────────────────────── */

.footer {
    margin-top: auto;
    text-align: center;
    padding: 2rem 1rem;
    font-size: .8rem;
    color: var(--text-dim);
}

/* ─── Toast ──────────────────────────────────────────────────────────────── */

.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-card);
    border: 1px solid var(--purple);
    border-radius: var(--radius-sm);
    padding: .6rem 1.2rem;
    font-size: .85rem;
    color: var(--text);
    box-shadow: 0 8px 32px rgba(0,0,0,.4);
    opacity: 0;
    transition: transform .3s ease, opacity .3s ease;
    z-index: 1000;
    pointer-events: none;
}

.toast.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* ─── Responsive ─────────────────────────────────────────────────────────── */

@media (max-width: 600px) {
    .header { padding: 2rem 1rem 1rem; }
    .card { padding: 1.25rem; }
    .event-header { flex-direction: column; align-items: flex-start; }
    .join-form { flex-direction: column; }
    .editor-toolbar { flex-direction: column; align-items: flex-start; }
}