/* =========================================================
   DESIGN TOKENS — LIGHT MODE (DEFAULT)
   ========================================================= */
:root {
    --color-bg: #F7F3EA;
    --color-panel: #FBF8F1;
    --color-panel-alt: #FFFFFF;
    --color-ink: #4A3F35;
    --color-ink-soft: #7A6E60;
    --color-border: #E4DACB;
    --color-accent: #A8763E;
    --color-accent-dark: #8B5E2E;
    --color-accent-soft: #F1E4D2;
    --btn-dark-bg: #4A3F35;
    --btn-dark-text: #FFFFFF;

    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --shadow-soft: 0 4px 20px rgba(74, 63, 53, 0.06);
}

/* =========================================================
   DESIGN TOKENS — DARK MODE (SERASI SEMUA TOGGLE)
   ========================================================= */
[data-theme="dark"],
body.dark-mode,
body.dark,
html.dark {
    --color-bg: #161412;
    --color-panel: #211E1A;
    --color-panel-alt: #2A2621;
    --color-ink: #F5EFE6;
    --color-ink-soft: #B8AEA1;
    --color-border: #3A342E;
    --color-accent: #C99355;
    --color-accent-dark: #E0AA6C;
    --color-accent-soft: #33291E;
    --btn-dark-bg: #F5EFE6;
    --btn-dark-text: #161412;

    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.4);
}

/* =========================================================
   1. STRUKTUR UTAMA & HERO SECTION
   ========================================================= */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    font-family: var(--font-main);
}

.availability-hero {
    text-align: center;
    padding: 40px 0 20px 0;
}

.availability-hero h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--color-ink);
}

.availability-hero p {
    color: var(--color-ink-soft);
    font-size: 15px;
}

.availability-card {
    background: var(--color-panel-alt) !important;
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow-soft);
    margin-bottom: 50px;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

/* =========================================================
   2. HEADER TARIKH TERPILIH & IKON NAVIGASI
   ========================================================= */
.date-picker-header {
    background: var(--color-panel);
    border: 1px solid var(--color-border);
    padding: 10px 18px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-ink);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 25px;
}

.cal-btn-prev,
.cal-btn-next {
    cursor: pointer;
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-panel);
    border-radius: 50%;
    color: var(--color-ink);
    transition: all 0.2s ease;
    user-select: none;
}

.cal-btn-prev:hover,
.cal-btn-next:hover {
    background: var(--btn-dark-bg);
    color: var(--btn-dark-text);
}

.cal-btn-prev svg,
.cal-btn-next svg {
    stroke: currentColor;
}

.cal-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    font-size: 15px;
    color: var(--color-ink);
    margin-bottom: 15px;
    height: 36px;
}

/* =========================================================
   3. KALENDAR DINAMIK & JULAT TARIKH
   ========================================================= */
.calendars-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 30px;
}

.calendar-box {
    width: 100%;
}

.calendar-table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
}

.calendar-table th {
    text-align: center;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-ink-soft);
    padding-bottom: 12px;
}

.calendar-table td {
    text-align: center;
    padding: 4px 0;
    position: relative;
    height: 44px;
    vertical-align: middle;
}

.calendar-table td span {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    position: relative;
    z-index: 2;
    font-weight: 600;
    font-size: 14px;
    color: var(--color-ink);
    margin: 0 auto;
    box-sizing: border-box;
    transition: all 0.15s ease;
}

.calendar-table td:not(.disabled-date):not(:empty) {
    cursor: pointer;
}

.calendar-table td:not(.disabled-date):not(:empty):hover span {
    background-color: var(--color-panel);
    color: var(--color-ink);
}

.calendar-table td.in-range::before,
.calendar-table td.selected-start::before,
.calendar-table td.selected-end::before {
    content: '';
    position: absolute;
    top: 4px;
    bottom: 4px;
    background-color: var(--color-accent-soft);
    z-index: 1;
}

.calendar-table td.in-range::before {
    left: 0;
    right: 0;
}

.calendar-table td.selected-start::before {
    left: 50%;
    right: 0;
}

.calendar-table td.selected-end::before {
    left: 0;
    right: 50%;
}

.calendar-table td.selected-single::before {
    display: none !important;
}

.calendar-table td:first-child.in-range::before,
.calendar-table td:first-child.selected-end::before {
    border-top-left-radius: 18px;
    border-bottom-left-radius: 18px;
}

.calendar-table td:last-child.in-range::before,
.calendar-table td:last-child.selected-start::before {
    border-top-right-radius: 18px;
    border-bottom-right-radius: 18px;
}

.calendar-table td.selected-start span,
.calendar-table td.selected-end span,
.calendar-table td.selected-single span {
    background-color: var(--btn-dark-bg) !important;
    color: var(--btn-dark-text) !important;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.25);
}

.calendar-table td.disabled-date {
    background-color: transparent !important;
    cursor: not-allowed !important;
    pointer-events: none;
}

.calendar-table td.disabled-date span {
    color: var(--color-border) !important;
    text-decoration: line-through;
}

/* =========================================================
   4. MODEN BORANG PILIHAN
   ========================================================= */
.form-options-grid {
    display: grid;
    grid-template-columns: 2.2fr 1fr;
    gap: 32px;
    padding-top: 25px;
    border-top: 1px solid var(--color-border);
}

.section-label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    color: var(--color-ink-soft);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 14px;
}

.category-filter-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}

.category-tab {
    padding: 7px 16px;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-ink-soft);
    background: var(--color-panel);
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.category-tab:hover {
    background: var(--color-border);
}

.category-tab.active {
    background: var(--btn-dark-bg);
    color: var(--btn-dark-text);
}

.package-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px 10px;
}

.chip-card {
    position: relative;
    cursor: pointer;
    user-select: none;
    padding-top: 6px;
}

.chip-card input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.chip-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px;
    background: var(--color-panel);
    border: 1px solid var(--color-border);
    border-radius: 9px;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}

.chip-text {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-ink);
    line-height: 1.3;
}

.chip-icon {
    width: 16px;
    height: 16px;
    border: 1.5px solid var(--color-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.15s ease;
    background: var(--color-panel-alt);
}

.chip-card:hover .chip-content {
    border-color: var(--color-accent);
    background-color: var(--color-panel-alt);
}

.chip-card input[type="checkbox"]:checked + .chip-content {
    background-color: var(--color-panel-alt);
    border-color: var(--color-accent);
}

.chip-card input[type="checkbox"]:checked + .chip-content .chip-text {
    color: var(--color-ink);
    font-weight: 600;
}

.chip-card input[type="checkbox"]:checked + .chip-content .chip-icon {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
}

.chip-card input[type="checkbox"]:checked + .chip-content .chip-icon::after {
    content: '';
    width: 4px;
    height: 8px;
    border: solid #ffffff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    margin-bottom: 2px;
}

.chip-stock-msg {
    position: absolute;
    top: 0;
    right: 10px;
    display: inline-block;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.2px;
    padding: 1px 7px;
    border-radius: 999px;
    background: var(--color-panel-alt);
    border: 1px solid var(--color-border);
    color: var(--color-ink-soft);
    line-height: 1.5;
}

.chip-stock-msg:empty {
    display: none;
}

.side-selectors-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.select-box-modern {
    position: relative;
    width: 100%;
}

.select-box-modern select {
    width: 100%;
    padding: 11px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: 10px;
    background-color: var(--color-panel-alt);
    font-size: 13px;
    font-weight: 500;
    color: var(--color-ink);
    outline: none;
    appearance: none;
    cursor: pointer;
    transition: border-color 0.2s ease, background-color 0.3s ease;
}

.select-box-modern select option {
    background-color: var(--color-panel-alt);
    color: var(--color-ink);
}

.select-box-modern select:focus,
.select-box-modern select:hover {
    border-color: var(--color-accent);
}

.select-box-modern::after {
    content: '';
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
    width: 5px;
    height: 5px;
    border-right: 2px solid var(--color-ink-soft);
    border-bottom: 2px solid var(--color-ink-soft);
    pointer-events: none;
}

.time-toggle-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 6px 6px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: 10px;
    background-color: var(--color-panel-alt);
}

.time-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-ink);
}

.segmented-control {
    display: flex;
    background: var(--color-panel);
    padding: 3px;
    border-radius: 8px;
}

.segmented-control input[type="radio"],
.segmented-control input[type="checkbox"] {
    display: none;
}

.segment-btn {
    padding: 6px 16px;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-ink-soft);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.segmented-control input:checked + .segment-btn {
    background-color: var(--btn-dark-bg);
    color: var(--btn-dark-text);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.btn-submit-availability {
    width: 100%;
    background-color: var(--btn-dark-bg);
    color: var(--btn-dark-text);
    border: none;
    padding: 14px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.btn-submit-availability:hover {
    background-color: var(--color-accent-dark);
    color: #ffffff;
}

/* =========================================================
   5. RESPONSIVE DESIGN
   ========================================================= */
@media (max-width: 900px) {
    .calendars-container,
    .form-options-grid {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 480px) {
    .package-cards-grid {
        grid-template-columns: 1fr;
    }
}

/* =========================================================
   6. TAMBAHAN BAHARU — BADGE STOK & TOAST NOTIFICATION
   ========================================================= */
.chip-stock-msg.stock-ok {
    background: #e6f4ea;
    border-color: #ceead6;
    color: #137333;
    display: inline-block;
}

.chip-stock-msg.stock-low {
    background: #fff4e5;
    border-color: #ffe0b2;
    color: #a15c00;
    display: inline-block;
}

.chip-stock-msg.stock-none {
    background: #ffeeec;
    border-color: #f5c6cb;
    color: #990000;
    display: inline-block;
}

.chip-card.stock-unavailable {
    opacity: 0.5;
    pointer-events: none;
}

.toast-notification-wrapper {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast-box {
    min-width: 260px;
    max-width: 340px;
    background: var(--color-panel-alt, #fff);
    border: 1px solid var(--color-border, #E4DACB);
    border-left: 4px solid var(--color-accent, #A8763E);
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    padding: 14px 16px;
    font-family: var(--font-main, 'Inter', sans-serif);
    font-size: 13px;
    font-weight: 500;
    color: var(--color-ink, #4A3F35);
    animation: toastSlideIn 0.25s ease;
}

.toast-box.toast-warning {
    border-left-color: #cc7a00;
}

.toast-box.toast-error {
    border-left-color: #990000;
}

.toast-box.toast-success {
    border-left-color: #137333;
}

@keyframes toastSlideIn {
    from { transform: translateX(30px); opacity: 0; }
    to   { transform: translateX(0);    opacity: 1; }
}

@keyframes toastFadeOut {
    from { opacity: 1; }
    to   { opacity: 0; }
}

.toast-box.toast-hide {
    animation: toastFadeOut 0.3s ease forwards;
}