/* ========================================
   Success Modal
   ======================================== */
.success-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 20px;
}

.success-modal.is-visible {
    opacity: 1;
    visibility: visible;
}

.success-modal__backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 66, 129, 0.85); /* Deep blue overlay */
    backdrop-filter: blur(8px);
    z-index: -1;
}

.success-modal__content {
    background: #ffffff;
    width: 100%;
    max-width: 500px;
    padding: 60px 40px;
    border-radius: 4px; /* Slightly softer corners but still structured */
    text-align: center;
    position: relative;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(202, 171, 94, 0.3); /* Subtle gold border */
    transform: translateY(20px) scale(0.95);
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.success-modal.is-visible .success-modal__content {
    transform: translateY(0) scale(1);
}

.success-modal__close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: transparent;
    border: none;
    font-size: 32px;
    line-height: 1;
    color: #0f4281;
    cursor: pointer;
    transition: transform 0.3s ease;
    opacity: 0.6;
}

.success-modal__close:hover {
    transform: rotate(90deg);
    opacity: 1;
}

.success-modal__icon {
    margin: 0 auto 24px;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.success-modal__icon svg {
    width: 100%;
    height: 100%;
}

.success-modal__title {
    font-family: var(--font-heading);
    font-size: 32px;
    color: #0f4281;
    margin-bottom: 16px;
    line-height: 1.2;
}

.success-modal__message {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: #5a616a;
    margin-bottom: 32px;
}

.success-modal__button {
    display: inline-block;
    background: #0f4281;
    color: #ffffff;
    font-family: var(--font-heading);
    font-size: 13px;
    letter-spacing: 2px;
    text-transform: uppercase;
    padding: 16px 32px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.success-modal__button:hover {
    background: #0a2e5c;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(15, 66, 129, 0.2);
}

/* ========================================
   Availability Calendar Modal
   ======================================== */
.avail-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, visibility;
    padding: 20px;
}

.avail-modal.is-visible {
    opacity: 1;
    visibility: visible;
}

.avail-modal__backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(8, 33, 72, 0.9); /* Slightly more opaque for performance */
    backdrop-filter: blur(4px); /* Reduced from 8px for significant FPS gain */
    will-change: opacity;
    z-index: -1;
}

.avail-modal__content {
    background: #ffffff;
    width: 100%;
    max-width: 920px;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: 4px;
    position: relative;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(202, 171, 94, 0.25);
    transform: translateY(24px) scale(0.97);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    will-change: transform;
    padding: 48px 40px 40px;
}

.avail-modal.is-visible .avail-modal__content {
    transform: translateY(0) scale(1);
}

/* Scrollbar styling */
.avail-modal__content::-webkit-scrollbar {
    width: 4px;
}
.avail-modal__content::-webkit-scrollbar-track {
    background: #f0f4f8;
}
.avail-modal__content::-webkit-scrollbar-thumb {
    background: #caab5e;
    border-radius: 2px;
}

.avail-modal__close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: transparent;
    border: none;
    font-size: 30px;
    line-height: 1;
    color: #0f4281;
    cursor: pointer;
    transition: transform 0.3s ease, opacity 0.3s ease;
    opacity: 0.55;
}

.avail-modal__close:hover {
    transform: rotate(90deg);
    opacity: 1;
}

.avail-modal__header {
    text-align: center;
    margin-bottom: 8px;
}

.avail-modal__eyebrow {
    display: block;
    font-family: var(--font-heading);
    font-size: 11px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #caab5e;
    margin-bottom: 10px;
}

.avail-modal__title {
    font-family: var(--font-heading);
    font-size: 28px;
    color: #0f4281;
    margin: 0;
    line-height: 1.2;
}

/* Legend */
.avail-modal__legend {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin: 20px 0 28px;
}

.avail-modal__legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-body);
    font-size: 13px;
    color: #5a616a;
    letter-spacing: 0.5px;
}

.avail-modal__legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.avail-modal__legend-item--available .avail-modal__legend-dot {
    background: #d4edda;
    border: 2px solid #28a745;
}

.avail-modal__legend-item--booked .avail-modal__legend-dot {
    background: #f8d7da;
    border: 2px solid #c0392b;
}

/* Calendars grid */
.avail-modal__calendars {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

/* Single calendar */
.avail-cal {
    border: 1px solid rgba(15, 66, 129, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.avail-cal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #0f4281;
    color: #ffffff;
    padding: 12px 16px;
}

.avail-cal__nav {
    background: transparent;
    border: none;
    color: #ffffff;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s ease;
    padding: 0 4px;
}

.avail-cal__nav:hover {
    opacity: 1;
}

.avail-cal__month-label {
    font-family: var(--font-heading);
    font-size: 15px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: #ffffff;
}

.avail-cal__grid {
    padding: 12px;
    background: #fafbfc;
}

.avail-cal__weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    margin-bottom: 6px;
}

.avail-cal__weekday {
    text-align: center;
    font-family: var(--font-heading);
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #9aa5b4;
    padding: 4px 0;
}

.avail-cal__days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    grid-template-rows: repeat(6, 1fr); /* Force 6 rows */
    gap: 3px;
    min-height: 220px; /* Prevent height jumps */
}

.avail-cal__day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-body);
    font-size: 13px;
    border-radius: 50%;
    cursor: default;
    transition: transform 0.15s ease;
}

.avail-cal__day--empty {
    /* empty cell */
}

.avail-cal__day--past {
    color: #c8cdd3;
}

.avail-cal__day--available {
    background: #d4edda;
    color: #155724;
    font-weight: 600;
    border: 1px solid rgba(40, 167, 69, 0.3);
}

.avail-cal__day--available:hover {
    transform: scale(1.15);
    background: #b8dfc5;
}

.avail-cal__day--booked {
    background: #f8d7da;
    color: #721c24;
    font-weight: 500;
    border: 1px solid rgba(192, 57, 43, 0.2);
    text-decoration: line-through;
    text-decoration-color: rgba(192, 57, 43, 0.5);
}

.avail-cal__day--today {
    outline: 2px solid #caab5e;
    outline-offset: 1px;
}

/* Footer CTA */
.avail-modal__footer {
    margin-top: 32px;
    text-align: center;
}

.avail-modal__cta {
    display: inline-block;
    background: #0f4281;
    color: #ffffff;
    font-family: var(--font-heading);
    font-size: 12px;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    text-decoration: none;
    padding: 16px 40px;
    border-radius: 2px;
    transition: background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.avail-modal__cta:hover {
    background: #082148;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(15, 66, 129, 0.25);
}

/* Loading state */
.avail-cal__loading {
    grid-column: 1 / -1;
    text-align: center;
    font-family: var(--font-body);
    font-size: 14px;
    color: #9aa5b4;
    letter-spacing: 1px;
    padding: 48px 0;
}

/* ---- Responsive ---- */
@media (max-width: 700px) {
    .avail-modal__content {
        padding: 40px 18px 28px;
    }

    .avail-modal__title {
        font-size: 22px;
    }

    .avail-modal__calendars {
        grid-template-columns: 1fr;
        gap: 18px;
    }
}