/* www.antechnet.sk/kalendar — verejná objednávková stránka */

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

:root {
    --kal-primary: #2D4A8A;
    --kal-primary-hover: #243d73;
    --kal-primary-light: #eef1f8;
    --kal-bg-start: #0f172a;
    --kal-bg-end: #1e3a5f;
    --kal-card: #ffffff;
    --kal-text: #1e293b;
    --kal-text-muted: #64748b;
    --kal-border: #e2e8f0;
    --kal-success-bg: #ecfdf5;
    --kal-success-text: #047857;
    --kal-success-border: #a7f3d0;
    --kal-error-bg: #fef2f2;
    --kal-error-text: #b91c1c;
    --kal-error-border: #fecaca;
    --kal-radius: 12px;
    --kal-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
    --kal-font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

html, body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: var(--kal-font);
    font-size: 16px;
    color: var(--kal-text);
    -webkit-font-smoothing: antialiased;
}

.kal-page {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 2rem 1rem 3rem;
    background: linear-gradient(135deg, var(--kal-bg-start) 0%, var(--kal-bg-end) 100%);
}

.kal-page__inner {
    width: 100%;
    max-width: 720px;
    background: var(--kal-card);
    border-radius: var(--kal-radius);
    box-shadow: var(--kal-shadow);
    padding: 2rem 1.75rem;
}

.kal-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.kal-header__logo-link {
    display: block;
    width: fit-content;
    margin: 0 auto 1rem;
    line-height: 0;
    border-radius: 10px;
    transition: opacity 0.15s ease, transform 0.15s ease;
}

.kal-header__logo-link:hover {
    opacity: 0.88;
    transform: scale(1.03);
}

.kal-header__logo-link:focus-visible {
    outline: 2px solid var(--kal-primary);
    outline-offset: 4px;
}

.kal-header__logo {
    display: block;
    width: 183px;
    height: auto;
}

.kal-header__title {
    margin: 0 0 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--kal-primary);
}

.kal-header__subtitle {
    margin: 0;
    color: var(--kal-text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

.kal-info {
    margin-bottom: 1.25rem;
    padding: 0.875rem 1rem;
    border-radius: 8px;
    background: var(--kal-primary-light);
    border: 1px solid #c7d2fe;
    color: #334155;
    font-size: 0.9rem;
    line-height: 1.5;
}

.kal-alert {
    margin-bottom: 1rem;
    padding: 0.875rem 1rem;
    border-radius: 8px;
    background: var(--kal-error-bg);
    border: 1px solid var(--kal-error-border);
    color: var(--kal-error-text);
    font-size: 0.9rem;
}

.kal-section {
    margin-bottom: 1.5rem;
}

.kal-section__title {
    margin: 0 0 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--kal-text);
}

.kal-form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.kal-form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: #475569;
}

.kal-form-group input,
.kal-form-group select {
    width: 100%;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--kal-border);
    border-radius: 8px;
    font: inherit;
    color: var(--kal-text);
    background: #fff;
}

.kal-form-group input:focus,
.kal-form-group select:focus {
    outline: none;
    border-color: var(--kal-primary);
    box-shadow: 0 0 0 3px rgba(45, 74, 138, 0.15);
}

.kal-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.kal-form-group--full {
    grid-column: 1 / -1;
}

/* Kalendár */
.kal-calendar {
    border: 1px solid var(--kal-border);
    border-radius: 10px;
    padding: 1rem;
    background: #fafbfc;
}

.kal-calendar__nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.kal-calendar__title {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--kal-primary);
    text-align: center;
    flex: 1;
}

.kal-cal-nav-btn {
    width: 2.25rem;
    height: 2.25rem;
    border: 1px solid var(--kal-border);
    border-radius: 8px;
    background: #fff;
    color: var(--kal-primary);
    font-size: 1.35rem;
    line-height: 1;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.kal-cal-nav-btn:hover:not(:disabled) {
    background: var(--kal-primary-light);
    border-color: var(--kal-primary);
}

.kal-cal-nav-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.kal-calendar__weekdays,
.kal-calendar__grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.35rem;
}

.kal-calendar__weekdays {
    margin-bottom: 0.35rem;
}

.kal-calendar__weekdays span {
    text-align: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--kal-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.kal-cal-day {
    aspect-ratio: 1;
    min-height: 2.5rem;
    border: 1px solid transparent;
    border-radius: 8px;
    background: #fff;
    color: var(--kal-text-muted);
    font: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: default;
    transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.1s;
}

.kal-cal-day--empty {
    background: transparent;
    border: none;
    cursor: default;
}

.kal-cal-day--disabled {
    opacity: 0.35;
    background: #f1f5f9;
}

.kal-cal-day--available {
    color: var(--kal-primary);
    border-color: #c7d2fe;
    background: #fff;
    cursor: pointer;
}

.kal-cal-day--available:hover {
    background: var(--kal-primary-light);
    border-color: var(--kal-primary);
    transform: scale(1.04);
}

.kal-cal-day--today {
    box-shadow: inset 0 0 0 2px #94a3b8;
}

.kal-cal-day--selected {
    background: var(--kal-primary) !important;
    border-color: var(--kal-primary) !important;
    color: #fff !important;
    box-shadow: none;
}

.kal-cal-day--full {
    border-color: #fecaca;
    background: #fffafa;
}

.kal-calendar__legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
    margin: 0.85rem 0 0;
    font-size: 0.8rem;
    color: var(--kal-text-muted);
}

.kal-calendar__legend-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.kal-calendar__legend-item::before {
    content: '';
    width: 0.85rem;
    height: 0.85rem;
    border-radius: 3px;
    border: 1px solid #c7d2fe;
    background: #fff;
}

.kal-calendar__legend-item--selected::before {
    background: var(--kal-primary);
    border-color: var(--kal-primary);
}

/* Časové sloty */
.kal-slots__date {
    margin: 0 0 0.75rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--kal-primary);
}

.kal-slots {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.kal-slots__hint,
.kal-slots__empty {
    margin: 0;
    color: var(--kal-text-muted);
    font-size: 0.9rem;
}

.kal-slots__legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
    margin: 0.75rem 0 0;
    font-size: 0.8rem;
    color: var(--kal-text-muted);
}

.kal-slots__legend-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.kal-slots__legend-item::before {
    content: '';
    width: 0.85rem;
    height: 0.85rem;
    border-radius: 3px;
}

.kal-slots__legend-item--free::before {
    background: #ecfdf5;
    border: 1px solid #86efac;
}

.kal-slots__legend-item--booked::before {
    background: #fef2f2;
    border: 1px solid #fecaca;
}

.kal-slot-btn {
    min-width: 4.5rem;
    padding: 0.55rem 0.75rem;
    border-radius: 8px;
    font: inherit;
    font-size: 0.9rem;
    transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.kal-slot-btn--free {
    border: 1px solid #86efac;
    border-radius: 8px;
    background: #ecfdf5;
    color: #047857;
    cursor: pointer;
}

.kal-slot-btn--free:hover {
    border-color: #10b981;
    background: #d1fae5;
}

.kal-slot-btn--free.is-selected {
    border-color: #059669;
    background: #10b981;
    color: #fff;
}

.kal-slot-btn--booked {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #fecaca;
    background: #fef2f2;
    color: #b91c1c;
    cursor: not-allowed;
    opacity: 0.95;
}

/* Vybraný termín + formulár */
.kal-selected-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.875rem 1rem;
    border-radius: 8px;
    background: var(--kal-primary-light);
    border: 1px solid #c7d2fe;
}

.kal-selected-summary__info {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.kal-selected-summary__label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--kal-text-muted);
}

.kal-selected-summary strong {
    font-size: 1rem;
    color: var(--kal-primary);
}

.kal-form-actions {
    margin-top: 0.5rem;
}

.kal-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: 8px;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, opacity 0.15s;
}

.kal-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.kal-btn--primary {
    background: var(--kal-primary);
    color: #fff;
}

.kal-btn--primary:hover:not(:disabled) {
    background: var(--kal-primary-hover);
}

.kal-btn--secondary {
    background: #f1f5f9;
    color: var(--kal-text);
    border: 1px solid var(--kal-border);
}

.kal-btn--secondary:hover {
    background: #e2e8f0;
}

.kal-btn--link {
    width: auto;
    padding: 0.4rem 0.65rem;
    background: transparent;
    color: var(--kal-primary);
    border: 1px solid var(--kal-primary);
    font-size: 0.85rem;
    white-space: nowrap;
}

.kal-btn--link:hover {
    background: #fff;
}

.kal-success {
    text-align: center;
    padding: 1rem 0 0.5rem;
}

.kal-success__icon {
    width: 3rem;
    height: 3rem;
    margin: 0 auto 1rem;
    border-radius: 50%;
    background: var(--kal-success-bg);
    border: 2px solid var(--kal-success-border);
    color: var(--kal-success-text);
    font-size: 1.5rem;
    line-height: 2.75rem;
    font-weight: 700;
}

.kal-success__title {
    margin: 0 0 0.5rem;
    font-size: 1.25rem;
    color: var(--kal-success-text);
}

.kal-success__text {
    margin: 0 0 1rem;
    color: var(--kal-text-muted);
}

.kal-success__details {
    margin-bottom: 1.25rem;
    padding: 1rem;
    border-radius: 8px;
    background: #f8fafc;
    border: 1px solid var(--kal-border);
    text-align: left;
    line-height: 1.6;
    font-size: 0.95rem;
}

.kal-footer {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--kal-border);
    text-align: center;
    color: var(--kal-text-muted);
    font-size: 0.85rem;
}

.kal-footer__link {
    color: var(--kal-primary);
    text-decoration: none;
    font-weight: 600;
}

.kal-footer__link:hover {
    text-decoration: underline;
}

@media (max-width: 560px) {
    .kal-page__inner {
        padding: 1.5rem 1.25rem;
    }

    .kal-form-grid {
        grid-template-columns: 1fr;
    }

    .kal-selected-summary {
        flex-direction: column;
        align-items: flex-start;
    }

    .kal-btn--link {
        width: 100%;
        justify-content: center;
    }

    .kal-cal-day {
        min-height: 2.1rem;
        font-size: 0.82rem;
    }
}