/* Design System & Reset */
:root {
    --color-bg: #ffffff;
    --color-bg-alt: #f8f8f8;
    --color-text: #1a1a1a;
    --color-text-light: #666666;
    --color-accent: #000000;
    --color-border: #e0e0e0;

    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    --container-width: 1200px;
    --header-height: 80px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* Typography */
h1,
h2,
h3,
h4 {
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

h1 {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
}

h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.5rem;
    font-weight: 500;
}

.subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    max-width: 600px;
}

/* Components */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--color-accent);
    color: white;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: opacity 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn:hover {
    opacity: 0.8;
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--color-text);
    color: var(--color-text);
}

.btn-outline:hover {
    background-color: var(--color-text);
    color: white;
}

/* Header */
header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-md);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s;
}

header.scrolled {
    border-color: var(--color-border);
}

.logo {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.03em;
    text-transform: uppercase;
}

nav ul {
    display: flex;
    gap: var(--spacing-md);
}

nav a {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.7;
    transition: opacity 0.3s;
}

nav a:hover {
    opacity: 1;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-color: var(--color-bg-alt);
    padding-top: var(--header-height);
    position: relative;
    overflow: hidden;
}

.hero-content {
    z-index: 2;
    max-width: 800px;
    padding: var(--spacing-md);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.1;
    /* Subtle background image */
    z-index: 1;
}

/* Rooms Section */
.rooms {
    padding: var(--spacing-xl) 0;
}

.rooms-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.room-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.room-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.room-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.room-image {
    height: 300px;
    background-color: #eee;
    position: relative;
    overflow: hidden;
}

.room-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.room-card:hover .room-image img {
    transform: scale(1.05);
}

.room-info {
    padding: var(--spacing-md);
}

.room-name {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.room-price {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.room-features {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 0.8rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

/* Footer */
footer {
    background-color: var(--color-text);
    color: white;
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

.copyright {
    opacity: 0.5;
    font-size: 0.8rem;
}

/* Modal Layout */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    width: 95%;
    max-width: 1100px;
    height: 90vh;
    overflow: hidden;
    border-radius: 8px;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    cursor: pointer;
    z-index: 10;
    line-height: 1;
}

.modal-layout {
    display: flex;
    height: 100%;
    overflow: hidden;
}

/* Main Content (Left) */
.modal-main {
    flex: 3;
    padding: var(--spacing-md);
    overflow-y: auto;
    border-right: 1px solid var(--color-border);
}

.calendar-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.calendar-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.nav-btn {
    background: white;
    border: 1px solid var(--color-border);
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.nav-btn:hover {
    background-color: var(--color-bg-alt);
}

/* Week Grid (Column-Major) */
.week-grid-container {
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow-x: auto;
    display: flex;
    background-color: white;
    max-height: 600px;
}

/* Time Labels Column */
.time-column {
    width: 60px;
    flex-shrink: 0;
    border-right: 1px solid var(--color-border);
    background-color: var(--color-bg);
    position: sticky;
    left: 0;
    z-index: 10;
}

.time-column-header {
    height: 50px;
    /* Match day header height */
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-bg-alt);
}

.time-label {
    height: 40px;
    /* Fixed height for slots */
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: var(--color-text-light);
    border-bottom: 1px solid var(--color-border);
}

/* Day Columns */
.day-column {
    flex: 1;
    min-width: 120px;
    /* Ensure minimum width for readability */
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
}

.room-image {
    height: 300px;
    background-color: #eee;
    position: relative;
    overflow: hidden;
}

.room-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.room-card:hover .room-image img {
    transform: scale(1.05);
}

.room-info {
    padding: var(--spacing-md);
}

.room-name {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.room-price {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.room-features {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 0.8rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

/* Footer */
footer {
    background-color: var(--color-text);
    color: white;
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

.copyright {
    opacity: 0.5;
    font-size: 0.8rem;
}

/* Modal Layout */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    width: 95%;
    max-width: 1100px;
    height: 90vh;
    overflow: hidden;
    border-radius: 8px;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    cursor: pointer;
    z-index: 10;
    line-height: 1;
}

.modal-layout {
    display: flex;
    height: 100%;
    overflow: hidden;
}

/* Main Content (Left) */
.modal-main {
    flex: 3;
    padding: var(--spacing-md);
    overflow-y: auto;
    border-right: 1px solid var(--color-border);
}

.calendar-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.calendar-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.nav-btn {
    background: white;
    border: 1px solid var(--color-border);
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.nav-btn:hover {
    background-color: var(--color-bg-alt);
}

/* Week Grid (Column-Major) */
.week-grid-container {
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow-x: auto;
    display: flex;
    background-color: white;
    max-height: 600px;
}

/* Time Labels Column */
.time-column {
    width: 60px;
    flex-shrink: 0;
    border-right: 1px solid var(--color-border);
    background-color: var(--color-bg);
    position: sticky;
    left: 0;
    z-index: 10;
}

.time-column-header {
    height: 50px;
    /* Match day header height */
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-bg-alt);
}

.time-label {
    height: 40px;
    /* Fixed height for slots */
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: var(--color-text-light);
    border-bottom: 1px solid var(--color-border);
}

/* Day Columns */
.day-column {
    flex: 1;
    min-width: 120px;
    /* Ensure minimum width for readability */
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
}

.day-column:last-child {
    border-right: none;
}

.day-header {
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 600;
    background-color: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    text-align: center;
    padding: 0 0.5rem;
}

.day-header.today {
    color: var(--color-accent);
    background-color: #e6f0ff;
}

.slot-cell {
    height: 40px;
    /* Match time label height */
    border-bottom: 1px solid var(--color-border);
    cursor: pointer;
    transition: background-color 0.2s;
    position: relative;
}

.slot-cell:hover {
    background-color: var(--color-bg-alt);
}

.slot-cell.selected {
    background-color: #4a90e2;
    color: white;
}

.slot-cell.selected:hover {
    background-color: #357abd;
}

.slot-cell.disabled {
    background-color: #f5f5f5;
    cursor: not-allowed;
    opacity: 0.5;
}

.slot-cell.occupied {
    background-color: #e8e8e8;
    cursor: not-allowed;
    position: relative;
}

.slot-cell.occupied::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 4px;
    height: 4px;
    background-color: #999;
    border-radius: 50%;
}

.modal-sidebar {
    flex: 1;
    padding: var(--spacing-md);
    background-color: var(--color-bg-alt);
    display: flex;
    flex-direction: column;
    min-width: 300px;
}

.sidebar-info {
    margin-top: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.info-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}

.info-item .label {
    color: var(--color-text-light);
}

.info-item .value {
    font-weight: 500;
    text-align: right;
}

.terms-text {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-top: 1rem;
    line-height: 1.4;
}

@media (max-width: 900px) {
    .modal-layout {
        flex-direction: column;
        overflow-y: auto;
    }

    .modal-main {
        flex: none;
        overflow: visible;
    }

    .modal-sidebar {
        flex: none;
    }
}

/* Week Grid (Grid Layout - Times on Rows, Days on Columns) */
.week-grid-container {
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow-x: auto;
    background-color: white;
    max-height: 600px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    /* Smooth scrolling on iOS */
}

/* ... (existing styles) ... */

/* Mobile Responsiveness */
@media (max-width: 768px) {
    :root {
        --header-height: 60px;
        --spacing-lg: 2rem;
        --spacing-xl: 4rem;
    }

    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    /* Header */
    header {
        padding: 0 var(--spacing-sm);
    }

    .logo {
        font-size: 1.1rem;
    }

    nav ul {
        gap: var(--spacing-sm);
    }

    nav a {
        font-size: 0.8rem;
    }

    /* Hero */
    .hero-content {
        padding: var(--spacing-sm);
    }

    /* Rooms Grid */
    .room-grid {
        grid-template-columns: 1fr;
        /* Single column on mobile */
        gap: var(--spacing-md);
    }

    .room-image {
        height: 250px;
    }

    /* Modal */
    .modal-content {
        width: 100%;
        height: 100%;
        border-radius: 0;
        max-width: none;
    }

    .close-modal {
        top: 0.5rem;
        right: 1rem;
        color: #000;
        background: rgba(255, 255, 255, 0.8);
        width: 30px;
        height: 30px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .modal-layout {
        flex-direction: column;
        overflow-y: auto;
    }

    .modal-main {
        flex: none;
        padding: var(--spacing-sm);
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }

    .modal-sidebar {
        flex: none;
        min-width: auto;
        padding: var(--spacing-sm);
        background-color: var(--color-bg-alt);
    }

    /* Calendar Controls */
    .calendar-controls {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .calendar-actions {
        width: 100%;
        justify-content: space-between;
    }

    #calendar-month-year {
        font-size: 1.2rem;
    }

    /* Week Grid on Mobile */
    .week-grid-container {
        max-height: 400px;
    }

    .week-grid-header-cell {
        min-width: 80px;
        padding: 0.5rem;
        font-size: 0.8rem;
    }

    .week-grid-time-cell {
        min-width: 60px;
        font-size: 0.8rem;
    }
}

.week-grid-table {
    display: table;
    width: 100%;
    border-collapse: collapse;
}

.week-grid-header-row {
    display: table-row;
    background-color: var(--color-bg-alt);
}

.week-grid-header-cell {
    display: table-cell;
    padding: 1rem;
    text-align: center;
    font-weight: 600;
    border: 1px solid var(--color-border);
    min-width: 100px;
}

.week-grid-header-cell.time-header {
    min-width: 80px;
    background-color: white;
}

.week-grid-header-cell.today {
    background-color: #4a90e2;
    color: white;
}

.week-grid-row {
    display: table-row;
}

.week-grid-time-cell {
    display: table-cell;
    padding: 0.5rem;
    text-align: right;
    font-size: 0.9rem;
    color: var(--color-text-light);
    border: 1px solid var(--color-border);
    background-color: var(--color-bg);
    vertical-align: middle;
    min-width: 80px;
}

.week-grid-slot {
    display: table-cell;
    padding: 0.5rem;
    text-align: center;
    border: 1px solid var(--color-border);
    min-height: 50px;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
    vertical-align: middle;
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.week-grid-slot:hover:not(.disabled):not(.occupied) {
    background-color: #f0f8ff;
    border-color: #4a90e2;
}

.week-grid-slot.selected {
    background-color: #4a90e2;
    color: white;
    font-weight: 600;
}

.week-grid-slot.selected .slot-price {
    color: white;
}

.week-grid-slot.disabled,
.week-grid-slot.occupied {
    cursor: not-allowed;
    background: repeating-linear-gradient(45deg,
            #f5f5f5,
            #f5f5f5 10px,
            #e8e8e8 10px,
            #e8e8e8 20px);
    color: #999;
}

.slot-price {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.slot-duration {
    display: block;
    font-size: 0.75rem;
    margin-bottom: 0.25rem;
}

.slot-total {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
}

.show-morning-btn {
    padding: 0.75rem 1.5rem;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.show-morning-btn:hover {
    background-color: var(--color-bg-alt);
}

/* Highlight day header when slots are selected in that day */
.week-grid-header-cell.selected-day {
    background-color: #357abd !important;
    color: white !important;
    font-weight: 700;
    box-shadow: 0 2px 4px rgba(53, 122, 189, 0.3);
}

.week-grid-header-cell.selected-day.today {
    background-color: #2d6aa3 !important;
}

/* Weekend day headers */
.week-grid-header-cell.saturday {
    color: #4a90e2;
}

.week-grid-header-cell.sunday {
    color: #e74c3c;
}

/* Remove the old 'today' styling */
.week-grid-header-cell.today {
    /* No special styling for today */
}

/* Show morning hours button styling */
.show-morning-btn {
    padding: 0.5rem 1rem;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s;
    color: var(--color-text);
    white-space: nowrap;
}

.show-morning-btn:hover {
    background-color: var(--color-bg-alt);
    border-color: var(--color-accent);
}

/* Calendar header layout improvements */
.calendar-controls>div:first-child {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.calendar-controls h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

/* Improve button group spacing */
.btn-outline {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    height: 36px;
}

/* Calendar icon button */
.btn-icon {
    background: white;
    border: 1px solid var(--color-border);
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
    padding: 0;
}

.btn-icon:hover {
    background-color: var(--color-bg-alt);
    border-color: var(--color-accent);
}

.btn-icon svg {
    color: var(--color-text);
}

/* Date Picker Popup */
.date-picker-popup {
    position: absolute;
    top: 60px;
    right: 20px;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    z-index: 100;
    padding: 1rem;
    min-width: 320px;
}

.date-picker-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-border);
}

.date-picker-header h4 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
}

.date-picker-nav {
    display: flex;
    gap: 0.5rem;
}

.date-picker-nav button {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
    font-size: 1.2rem;
    color: var(--color-text);
    transition: color 0.2s;
}

.date-picker-nav button:hover {
    color: var(--color-accent);
}

.date-picker-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.25rem;
}

.date-picker-day-header {
    text-align: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-light);
    padding: 0.5rem 0;
}

.date-picker-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s;
}

.date-picker-day:hover:not(.disabled):not(.other-month) {
    background-color: var(--color-bg-alt);
}

.date-picker-day.today {
    color: var(--color-accent);
    font-weight: 600;
}

.date-picker-day.selected {
    background-color: var(--color-accent);
    color: white;
    font-weight: 600;
}

.date-picker-day.other-month {
    color: #ccc;
}

.date-picker-day.disabled {
    color: #ddd;
    cursor: not-allowed;
}

/* Centered header with logo only */
#main-header {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1.5rem 0;
}

#main-header .logo {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 0.1em;
}

/* Toast Notifications */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: white;
    color: var(--text-primary);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 300px;
    transform: translateX(120%);
    transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    border-left: 4px solid var(--primary-color);
    font-size: 0.95rem;
}

.toast.show {
    transform: translateX(0);
}

.toast.error {
    border-left-color: #ef4444;
}

.toast.success {
    border-left-color: #22c55e;
}

.toast-icon {
    font-size: 1.2rem;
}

/* Closed Days/Slots */
.week-grid-header-cell.closed-day {
    background-color: #f3f4f6;
    color: #9ca3af;
}

.week-grid-slot.closed {
    background-color: #f9fafb;
    background-image: repeating-linear-gradient(45deg,
            #f3f4f6,
            #f3f4f6 10px,
            #f9fafb 10px,
            #f9fafb 20px);
    cursor: not-allowed;
    border-color: #eee;
}