.picker {
    background: var(--panel);
    border-radius: 22px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    overflow: hidden;
    display: grid;
    gap: 18px;
    padding: 26px 28px 30px;
}

.picker-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 18px;
    border-radius: 16px;
    background: var(--panel-light);
    border: 1px solid rgba(148, 163, 184, 0.14);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.picker-header svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: var(--text-secondary);
    stroke-width: 1.8;
}

.section-title {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.24em;
}

.date-grid {
    display: grid;
    gap: 14px;
}

.date-grid-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.month-nav {
    display: flex;
    align-items: center;
    gap: 12px;
}

.month-nav button {
    width: 32px;
    height: 32px;
    border-radius: 9px;
    border: 1px solid transparent;
    background: var(--panel-light);
    color: var(--text-secondary);
    display: grid;
    place-items: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.month-nav button:hover {
    border-color: rgba(148, 163, 184, 0.24);
    background: var(--panel-hover);
    color: var(--text-primary);
}

.month-label {
    font-weight: 600;
    letter-spacing: 0.02em;
}

.presets {
    display: grid;
    gap: 8px;
    font-size: 0.86rem;
}

.preset-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 10px 14px;
    border-radius: 12px;
    border: 1px solid transparent;
    background: transparent;
    color: inherit;
    font: inherit;
    cursor: pointer;
    transition: all 0.15s ease;
}

.preset-row span:first-child {
    color: var(--text-secondary);
}

.preset-row span:last-child {
    color: var(--text-primary);
}

.preset-row:hover,
.preset-row:focus-visible {
    outline: none;
    border-color: rgba(148, 163, 184, 0.24);
    background: var(--panel-hover);
}

.weekdays,
.days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    gap: 6px;
}

.weekdays span {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--text-secondary);
}

.day {
    position: relative;
    display: grid;
    place-items: center;
    height: 34px;
    border-radius: 12px;
    font-size: 0.88rem;
    color: var(--text-secondary);
    transition: all 0.15s ease;
    cursor: pointer;
    border: 1px solid transparent;
    background: transparent;
    font: inherit;
}

.day.active {
    color: var(--text-primary);
}

.day:hover {
    background: rgba(148, 163, 184, 0.12);
    color: var(--text-primary);
}

.day:focus-visible {
    outline: none;
    border-color: rgba(148, 163, 184, 0.4);
}

.day.today {
    border: 1px solid rgba(148, 163, 184, 0.4);
    color: var(--text-primary);
}

.day.selected {
    background: var(--accent);
    color: #0f172a;
    font-weight: 600;
    box-shadow: 0 10px 24px -12px var(--accent);
    border-color: transparent;
}

.day.range {
    background: var(--accent-soft);
    color: var(--accent-strong);
}

.day.outside {
    color: rgba(148, 163, 184, 0.45);
}

.day.outside:hover {
    color: var(--text-primary);
}

.day.start,
.day.end,
.day[data-part="single"] {
    position: relative;
}

.day.start::after,
.day.end::after,
.day[data-part="single"]::after {
    content: "";
    position: absolute;
    inset: -3px;
    border-radius: 14px;
    border: 1px solid rgba(34, 197, 94, 0.45);
    pointer-events: none;
}

.day.end::after {
    border-color: rgba(74, 222, 128, 0.45);
}

.time-section {
    display: grid;
    gap: 12px;
}

.submit-button {
    height: 48px;
    border-radius: 14px;
    border: none;
    background: linear-gradient(135deg, var(--accent-strong), var(--accent));
    color: #0f172a;
    font-weight: 600;
    font-size: 0.98rem;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
    box-shadow: 0 14px 28px -18px var(--accent-strong);
}

.submit-button:hover,
.submit-button:focus-visible {
    outline: none;
    transform: translateY(-1px);
    box-shadow: 0 18px 32px -16px var(--accent-strong);
}

@media (max-width: 420px) {
    body {
        padding: 24px;
    }

    .picker {
        width: 100%;
        padding: 24px;
    }
}