/**
 * TAC Booking — Frontend Styles
 * Version: 1.0.1
 */

.tac-booking {
    --tac-primary: #2d3748;
    --tac-blue: #085DA8;
    --tac-cyan: #43B3E5;
    --tac-bg: #ffffff;
    --tac-bg-alt: #f7fafc;
    --tac-border: #e2e8f0;
    --tac-text: #4a5568;
    --tac-text-light: #94a3b8;
    --tac-success: #22c55e;
    --tac-danger: #ef4444;
    --tac-radius: 8px;
    --tac-font: 'Inter', system-ui, -apple-system, sans-serif;

    font-family: var(--tac-font);
    max-width: 560px;
    margin: 0 auto;
    color: var(--tac-text);
}

/* Step Indicators */
.tac-booking__steps {
    display: flex;
    justify-content: center;
    gap: 4px;
    margin-bottom: 32px;
    padding: 0 16px;
}

.tac-booking__step {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 13px;
    color: var(--tac-text-light);
    transition: all 0.3s ease;
}

.tac-booking__step--active {
    background: var(--tac-blue);
    color: #fff;
}

.tac-booking__step--done {
    color: var(--tac-success);
}

.tac-booking__step-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    font-size: 12px;
    font-weight: 700;
    background: var(--tac-border);
    color: var(--tac-text-light);
}

.tac-booking__step--active .tac-booking__step-num {
    background: rgba(255, 255, 255, 0.25);
    color: #fff;
}

.tac-booking__step--done .tac-booking__step-num {
    background: var(--tac-success);
    color: #fff;
}

.tac-booking__step-label {
    display: none;
}

.tac-booking__step--active .tac-booking__step-label {
    display: inline;
}

/* Panels */
.tac-booking__panel {
    display: none;
}

.tac-booking__panel--active {
    display: block;
    animation: tacFadeIn 0.3s ease;
}

@keyframes tacFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.tac-booking__panel h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--tac-primary);
    margin: 0 0 4px;
    text-align: center;
}

.tac-booking__subtitle {
    text-align: center;
    color: var(--tac-text-light);
    font-size: 14px;
    margin: 0 0 24px;
}

/* Calendar */
.tac-booking__calendar {
    background: var(--tac-bg);
    border: 1px solid var(--tac-border);
    border-radius: var(--tac-radius);
    padding: 20px;
    max-width: 380px;
    margin: 0 auto;
}

.tac-booking__cal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.tac-booking__cal-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--tac-primary);
}

.tac-booking__cal-nav {
    background: none;
    border: 1px solid var(--tac-border);
    border-radius: 6px;
    width: 36px;
    height: 36px;
    font-size: 18px;
    cursor: pointer;
    color: var(--tac-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.tac-booking__cal-nav:hover {
    background: var(--tac-bg-alt);
    border-color: var(--tac-blue);
    color: var(--tac-blue);
}

.tac-booking__cal-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    color: var(--tac-text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.tac-booking__cal-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.tac-booking__cal-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    border-radius: 8px;
    cursor: pointer;
    border: none;
    background: none;
    color: var(--tac-primary);
    font-weight: 500;
    transition: all 0.15s ease;
}

.tac-booking__cal-day:hover:not(.tac-booking__cal-day--disabled) {
    background: var(--tac-blue);
    color: #fff;
}

.tac-booking__cal-day--today {
    border: 2px solid var(--tac-cyan);
}

.tac-booking__cal-day--disabled {
    color: var(--tac-text-light);
    opacity: 0.35;
    cursor: not-allowed;
}

.tac-booking__cal-day--empty {
    cursor: default;
}

/* Time Slots */
.tac-booking__slots {
    margin-bottom: 20px;
}

.tac-booking__slots-loading {
    text-align: center;
    padding: 32px;
    color: var(--tac-text-light);
    font-size: 14px;
}

.tac-booking__slots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 8px;
}

.tac-booking__slot {
    padding: 12px 8px;
    border: 2px solid var(--tac-border);
    border-radius: var(--tac-radius);
    background: var(--tac-bg);
    font-size: 14px;
    font-weight: 600;
    color: var(--tac-primary);
    cursor: pointer;
    text-align: center;
    transition: all 0.15s ease;
    font-family: var(--tac-font);
}

.tac-booking__slot:hover:not(.tac-booking__slot--unavailable) {
    border-color: var(--tac-blue);
    background: #f0f7ff;
    color: var(--tac-blue);
}

.tac-booking__slot--unavailable {
    background: var(--tac-bg-alt);
    color: var(--tac-text-light);
    cursor: not-allowed;
    text-decoration: line-through;
    opacity: 0.5;
}

.tac-booking__slots-empty {
    text-align: center;
    padding: 32px;
    color: var(--tac-text-light);
    font-size: 14px;
    background: var(--tac-bg-alt);
    border-radius: var(--tac-radius);
}

/* Form */
.tac-booking__form {
    max-width: 480px;
    margin: 0 auto;
}

.tac-booking__field {
    margin-bottom: 16px;
}

.tac-booking__field label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--tac-primary);
    margin-bottom: 6px;
}

.tac-booking__field .required {
    color: var(--tac-danger);
}

.tac-booking__field input,
.tac-booking__field textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--tac-border);
    border-radius: 6px;
    font-size: 15px;
    font-family: var(--tac-font);
    color: var(--tac-primary);
    transition: border-color 0.2s ease;
    box-sizing: border-box;
}

.tac-booking__field input:focus,
.tac-booking__field textarea:focus {
    outline: none;
    border-color: var(--tac-blue);
    box-shadow: 0 0 0 3px rgba(8, 93, 168, 0.1);
}

.tac-booking__field input::placeholder,
.tac-booking__field textarea::placeholder {
    color: var(--tac-text-light);
}

.tac-booking__actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-top: 24px;
}

.tac-booking__error {
    margin-top: 16px;
    padding: 12px 16px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 6px;
    color: var(--tac-danger);
    font-size: 14px;
    text-align: center;
}

/* Buttons */
.tac-booking__btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    font-family: var(--tac-font);
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    text-decoration: none;
    text-align: center;
}

.tac-booking__btn--primary {
    background: var(--tac-blue);
    color: #fff;
}

.tac-booking__btn--primary:hover {
    background: #06488a;
}

.tac-booking__btn--primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.tac-booking__btn--secondary {
    background: var(--tac-bg);
    color: var(--tac-blue);
    border: 2px solid var(--tac-blue);
}

.tac-booking__btn--secondary:hover {
    background: #f0f7ff;
}

.tac-booking__btn--back {
    background: none;
    color: var(--tac-text-light);
    padding: 10px 0;
}

.tac-booking__btn--back:hover {
    color: var(--tac-blue);
}

/* Confirmation */
.tac-booking__confirmation {
    text-align: center;
    padding: 16px 0;
}

.tac-booking__check-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--tac-success);
    color: #fff;
    font-size: 32px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.tac-booking__confirm-details {
    background: var(--tac-bg-alt);
    border: 1px solid var(--tac-border);
    border-radius: var(--tac-radius);
    padding: 16px 24px;
    margin: 24px auto;
    max-width: 320px;
    text-align: left;
}

.tac-booking__confirm-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--tac-border);
}

.tac-booking__confirm-row:last-child {
    border-bottom: none;
}

.tac-booking__confirm-label {
    font-weight: 600;
    color: var(--tac-primary);
    font-size: 14px;
}

.tac-booking__confirm-value {
    color: var(--tac-text);
    font-size: 14px;
}

.tac-booking__confirm-note {
    font-size: 14px;
    color: var(--tac-text-light);
    margin: 20px 0;
}

/* Responsive */
@media (max-width: 600px) {
    .tac-booking {
        padding: 0 8px;
    }

    .tac-booking__steps {
        gap: 2px;
        padding: 0 4px;
    }

    .tac-booking__step {
        padding: 6px 8px;
        font-size: 12px;
    }

    .tac-booking__step-num {
        width: 22px;
        height: 22px;
        font-size: 11px;
    }

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

    .tac-booking__actions {
        flex-direction: column-reverse;
        gap: 8px;
    }

    .tac-booking__btn--primary {
        width: 100%;
    }

    .tac-booking__calendar {
        padding: 16px 12px;
    }
}