/* ============================================
   COMMUNITY OF TRAVELLERS — RESPONSIVE STYLES
   Breakpoints: 1024px, 768px, 480px
   ============================================ */

/* =============================================
   MOBILE BOTTOM NAVIGATION
   ============================================= */

.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--mobile-nav-height);
    background: rgba(10, 15, 26, 0.95);
    backdrop-filter: blur(var(--glass-blur-heavy));
    -webkit-backdrop-filter: blur(var(--glass-blur-heavy));
    border-top: 1px solid var(--color-border);
    z-index: var(--z-fixed);
    padding: 0 var(--space-2);
    padding-bottom: env(safe-area-inset-bottom, 0);
}

.mobile-bottom-nav-items {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-around;
    height: 100%;
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: var(--space-1) var(--space-2);
    color: var(--color-text-tertiary);
    font-size: 10px;
    font-weight: var(--font-medium);
    cursor: pointer;
    text-decoration: none;
    transition: color var(--transition-fast);
    min-width: 44px;
    min-height: 44px;
    border: none;
    background: transparent;
    font-family: var(--font-body);
    -webkit-tap-highlight-color: transparent;
}

.mobile-nav-item .nav-icon {
    font-size: 1.25rem;
    line-height: 1;
}

.mobile-nav-item:hover,
.mobile-nav-item.active {
    color: var(--color-teal);
}

.mobile-nav-item.active .nav-icon {
    filter: drop-shadow(0 0 6px var(--color-teal-glow));
}

/* =============================================
   HAMBURGER MENU BUTTON
   ============================================= */

.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: var(--space-2);
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: calc(var(--z-modal) + 1);
    -webkit-tap-highlight-color: transparent;
}

.hamburger-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
    transform-origin: center;
}

.hamburger-btn.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-btn.open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger-btn.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* =============================================
   MOBILE NAV DRAWER
   ============================================= */

.mobile-nav-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 320px;
    height: 100vh;
    height: 100dvh;
    background: var(--color-bg-secondary);
    border-left: 1px solid var(--color-border);
    z-index: var(--z-modal);
    transform: translateX(100%);
    transition: transform var(--transition-smooth);
    padding: calc(var(--nav-height) + var(--space-4)) var(--space-6) var(--space-6);
    overflow-y: auto;
}

.mobile-nav-drawer.open {
    transform: translateX(0);
}

.mobile-nav-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: calc(var(--z-modal) - 1);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
}

.mobile-nav-backdrop.open {
    opacity: 1;
    pointer-events: all;
}

/* =============================================
   STICKY BOOKING BAR (Mobile)
   ============================================= */

.booking-mobile-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(10, 15, 26, 0.95);
    backdrop-filter: blur(var(--glass-blur-heavy));
    -webkit-backdrop-filter: blur(var(--glass-blur-heavy));
    border-top: 1px solid var(--color-border);
    padding: var(--space-3) var(--space-4);
    padding-bottom: calc(var(--space-3) + env(safe-area-inset-bottom, 0));
    z-index: var(--z-fixed);
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.booking-mobile-bar .booking-mobile-price {
    display: flex;
    flex-direction: column;
}

.booking-mobile-bar .booking-mobile-price-main {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    color: var(--color-text-primary);
}

.booking-mobile-bar .booking-mobile-price-sub {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

.booking-mobile-bar .btn {
    flex-shrink: 0;
    min-height: 44px;
}

/* =============================================
   FILTER DRAWER (Mobile)
   ============================================= */

.filter-drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
}

.filter-drawer-overlay.open {
    opacity: 1;
    pointer-events: all;
}

.filter-drawer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    max-height: 90vh;
    max-height: 90dvh;
    background: var(--color-bg-secondary);
    border-top-left-radius: var(--radius-2xl);
    border-top-right-radius: var(--radius-2xl);
    border-top: 1px solid var(--color-border);
    z-index: var(--z-modal);
    transform: translateY(100%);
    transition: transform var(--transition-smooth);
    overflow-y: auto;
    overscroll-behavior: contain;
}

.filter-drawer.open {
    transform: translateY(0);
}

.filter-drawer-handle {
    display: flex;
    justify-content: center;
    padding: var(--space-3) 0;
    position: sticky;
    top: 0;
    background: var(--color-bg-secondary);
    z-index: 1;
}

.filter-drawer-handle::after {
    content: '';
    width: 36px;
    height: 4px;
    background: var(--color-text-muted);
    border-radius: var(--radius-full);
}

.filter-drawer-content {
    padding: 0 var(--space-6) var(--space-8);
}

.filter-drawer-header {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
}

.filter-drawer-title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
}

.filter-drawer-actions {
    display: flex;
    flex-direction: row;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--color-border);
    position: sticky;
    bottom: 0;
    background: var(--color-bg-secondary);
}

.filter-drawer-actions .btn {
    flex: 1;
    min-height: 44px;
}


/* =============================================
   TOUCH-FRIENDLY SIZING
   ============================================= */

@media (pointer: coarse) {
    .btn {
        min-height: 44px;
        min-width: 44px;
    }

    .chip {
        min-height: 36px;
        padding: var(--space-2) var(--space-3);
    }

    .input {
        min-height: 44px;
    }

    .accordion-header {
        min-height: 48px;
    }

    .dashboard-nav-item {
        min-height: 44px;
    }

    .message-thread-item {
        min-height: 64px;
    }
}


/* =============================================
   BREAKPOINT: 1024px (Tablet Landscape)
   ============================================= */

@media (max-width: 1024px) {
    /* --- Layout --- */
    .container {
        padding: 0 var(--space-5);
    }

    .section {
        padding: var(--space-16) 0;
    }

    .home-section {
        padding: var(--space-16) 0;
    }

    /* --- Trip Detail --- */
    .trip-detail-layout {
        grid-template-columns: 1fr;
    }

    .trip-detail-sidebar {
        position: static;
    }

    /* --- Overview Grid --- */
    .trip-overview-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* --- Related Trips --- */
    .trip-related-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* --- Gallery --- */
    .trip-gallery-mosaic {
        height: 380px;
    }

    /* --- Dashboard --- */
    .dashboard-layout,
    .admin-layout {
        grid-template-columns: 1fr;
    }

    .dashboard-sidebar {
        position: fixed;
        left: 0;
        top: var(--nav-height);
        width: var(--sidebar-width);
        height: calc(100vh - var(--nav-height));
        border-radius: 0;
        transform: translateX(-100%);
        transition: transform var(--transition-smooth);
        z-index: var(--z-modal);
        box-shadow: var(--shadow-xl);
    }

    .dashboard-sidebar.open {
        transform: translateX(0);
    }

    .dashboard-content,
    .dashboard-main {
        margin-left: 0;
        padding: 0;
    }

    .dashboard-sidebar-toggle {
        display: inline-flex;
    }

    /* --- Stats Grid --- */
    .dashboard-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* --- Host CTA --- */
    .host-cta-section {
        padding: var(--space-12);
    }

    /* --- Messages --- */
    .messages-layout {
        grid-template-columns: 300px 1fr;
    }
}


/* =============================================
   BREAKPOINT: 768px (Tablet Portrait / Large Phone)
   ============================================= */

@media (max-width: 768px) {
    /* --- Show mobile elements --- */
    .mobile-bottom-nav {
        display: block;
    }

    .hamburger-btn {
        display: flex;
    }

    .booking-mobile-bar {
        display: flex;
    }

    /* --- Hide desktop elements --- */
    .nav-links,
    .nav-actions {
        display: none;
    }

    /* --- Body padding for bottom nav --- */
    body {
        padding-bottom: var(--mobile-nav-height);
    }

    /* --- Container --- */
    .container {
        padding: 0 var(--space-4);
    }

    .section {
        padding: var(--space-12) 0;
    }

    .home-section {
        padding: var(--space-12) 0;
    }

    /* --- Hero --- */
    .hero-section {
        min-height: auto;
        padding: calc(var(--nav-height) + var(--space-8)) 0 var(--space-12);
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        max-width: 100%;
    }

    .hero-globe-container {
        display: none;
    }

    .hero-ctas {
        justify-content: center;
    }

    .hero-search-preview {
        max-width: 100%;
    }

    .hero-stats {
        gap: var(--space-6);
        justify-content: center;
        flex-wrap: wrap;
    }

    .hero-stat-number {
        font-size: var(--text-3xl);
    }

    /* --- Gallery Layouts --- */
    .trip-gallery-mosaic,
    .trip-gallery-single,
    .trip-gallery-two,
    .trip-gallery-three,
    .trip-gallery-four {
        display: block;
        height: auto;
        border-radius: var(--radius-lg);
        overflow: hidden;
    }

    .trip-gallery-mosaic .gallery-main,
    .trip-gallery-single,
    .trip-gallery-two .gallery-half:first-child,
    .trip-gallery-three .gallery-main-half,
    .trip-gallery-four .gallery-main-left {
        width: 100%;
        aspect-ratio: 16 / 10;
        height: auto;
        display: block;
    }

    .trip-gallery-mosaic .gallery-thumb,
    .trip-gallery-mosaic .gallery-more,
    .trip-gallery-two .gallery-half:nth-child(2),
    .trip-gallery-three .gallery-side-thumbs,
    .trip-gallery-four .gallery-side-cols {
        display: none !important;
    }

    /* --- Trip Detail --- */
    .trip-meta-bar {
        gap: var(--space-3);
    }

    .trip-inclusion-grid {
        grid-template-columns: 1fr;
    }

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

    /* --- Booking Widget: Hidden on mobile (replaced by sticky bar) --- */
    .booking-widget {
        display: none;
    }

    /* --- How It Works --- */
    .how-it-works-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    /* --- Categories --- */
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* --- Newsletter --- */
    .newsletter-section {
        padding: var(--space-8);
    }

    .newsletter-form {
        flex-direction: column;
        align-items: stretch;
    }

    .newsletter-form .btn {
        width: 100%;
    }

    /* --- Destination Cards --- */
    .destination-card {
        min-width: 220px;
        height: 300px;
    }

    /* --- Host CTA --- */
    .host-cta-section {
        padding: var(--space-8);
    }

    .host-cta-features {
        grid-template-columns: 1fr;
    }

    .host-cta-title {
        font-size: var(--text-2xl);
    }

    /* --- Messages: Full-screen threads --- */
    .messages-layout {
        grid-template-columns: 1fr;
    }

    .messages-sidebar {
        border-right: none;
    }

    .messages-sidebar.hidden-mobile {
        display: none;
    }

    .messages-main.hidden-mobile {
        display: none;
    }

    .messages-back-btn {
        display: inline-flex;
    }

    /* --- Dashboard Stats --- */
    .dashboard-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* --- Related Trips --- */
    .trip-related-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-4);
    }

    /* --- Auth --- */
    .auth-panel {
        padding: var(--space-8);
    }

    /* --- Profile Header --- */
    .profile-header {
        padding: var(--space-8);
        gap: var(--space-6);
    }

    .profile-avatar {
        width: 96px;
        height: 96px;
    }

    /* --- Section Headers --- */
    .section-header .section-title {
        font-size: var(--text-3xl);
    }

    /* --- Scroll snap for carousels --- */
    .destinations-scroll {
        scroll-snap-type: x mandatory;
        scroll-padding: var(--space-4);
    }

    .destinations-scroll > * {
        scroll-snap-align: start;
    }

    /* --- Testimonials --- */
    .testimonial-card {
        padding: var(--space-6);
    }

    /* --- Admin Tabs --- */
    .admin-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* --- Table --- */
    .dashboard-table-wrapper {
        margin: 0 calc(-1 * var(--space-4));
        padding: 0 var(--space-4);
        overflow-x: auto;
        border-radius: 0;
        border-left: none;
        border-right: none;
    }
}


/* =============================================
   BREAKPOINT: 480px (Small Phone)
   ============================================= */

@media (max-width: 480px) {
    /* --- Typography --- */
    h1 { font-size: var(--text-3xl); }
    h2 { font-size: var(--text-2xl); }
    h3 { font-size: var(--text-xl); }

    /* --- Container --- */
    .container {
        padding: 0 var(--space-4);
    }

    .section {
        padding: var(--space-8) 0;
    }

    .home-section {
        padding: var(--space-8) 0;
    }

    /* --- Hero --- */
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: var(--text-base);
    }

    .hero-ctas {
        flex-direction: column;
        width: 100%;
    }

    .hero-ctas .btn {
        width: 100%;
    }

    .hero-stats {
        gap: var(--space-4);
    }

    .hero-stat-number {
        font-size: var(--text-2xl);
    }

    /* --- Trip Detail --- */
    .trip-title {
        font-size: var(--text-2xl);
    }

    .trip-location {
        font-size: var(--text-base);
    }

    .trip-overview-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-3);
    }

    .trip-section-title {
        font-size: var(--text-xl);
    }

    .trip-host-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .trip-host-stats {
        justify-content: center;
    }

    .trip-host-cta {
        width: 100%;
    }

    .trip-reviews-summary {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-4);
    }

    .trip-reviews-big-number {
        font-size: var(--text-4xl);
    }

    .trip-related-grid {
        grid-template-columns: 1fr;
    }

    /* --- Gallery --- */
    .trip-gallery-mosaic {
        border-radius: var(--radius-lg);
    }

    /* --- Destination Cards --- */
    .destination-card {
        min-width: 200px;
        height: 260px;
    }

    .destination-card-title {
        font-size: var(--text-xl);
    }

    /* --- Categories --- */
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-3);
    }

    .category-card {
        padding: var(--space-4);
    }

    /* --- Auth --- */
    .auth-page {
        padding: var(--space-4);
        align-items: flex-start;
        padding-top: var(--space-12);
    }

    .auth-panel {
        max-width: 100%;
        padding: var(--space-6);
        border-radius: var(--radius-lg);
    }

    .auth-title {
        font-size: var(--text-xl);
    }

    /* --- Dashboard Stats --- */
    .dashboard-stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-3);
    }

    .dashboard-stat-card {
        padding: var(--space-4);
    }

    .dashboard-stat-number {
        font-size: var(--text-xl);
    }

    .dashboard-main {
        padding: var(--space-4);
    }

    /* --- Profile --- */
    .profile-header {
        flex-direction: column;
        text-align: center;
        align-items: center;
        padding: var(--space-6);
    }

    .profile-avatar {
        width: 80px;
        height: 80px;
    }

    .profile-name {
        font-size: var(--text-xl);
    }

    .profile-stats {
        justify-content: center;
        gap: var(--space-6);
    }

    .profile-actions {
        width: 100%;
        justify-content: center;
    }

    .profile-bio {
        max-width: 100%;
    }

    /* --- Messages --- */
    .message-bubble {
        max-width: 85%;
    }

    .messages-header {
        padding: var(--space-3) var(--space-4);
    }

    .messages-body {
        padding: var(--space-4);
    }

    .messages-input-area {
        padding: var(--space-3) var(--space-4);
    }

    /* --- Newsletter --- */
    .newsletter-section {
        padding: var(--space-6);
        border-radius: var(--radius-lg);
    }

    .newsletter-title {
        font-size: var(--text-xl);
    }

    /* --- Booking Mobile Bar --- */
    .booking-mobile-bar {
        padding: var(--space-3);
    }

    /* --- How It Works --- */
    .how-it-works-step {
        padding: var(--space-6) var(--space-4);
    }

    .step-number {
        width: 52px;
        height: 52px;
        font-size: var(--text-xl);
    }

    /* --- Section Headers --- */
    .section-header .section-title {
        font-size: var(--text-2xl);
    }

    .section-header .section-description {
        font-size: var(--text-base);
    }

    /* --- Host CTA --- */
    .host-cta-section {
        padding: var(--space-6);
        border-radius: var(--radius-lg);
    }

    .host-cta-title {
        font-size: var(--text-xl);
    }

    /* --- Testimonials --- */
    .testimonial-card {
        padding: var(--space-5);
    }

    .testimonial-quote {
        font-size: var(--text-base);
    }

    /* --- Admin --- */
    .admin-tab {
        padding: var(--space-2) var(--space-4);
        font-size: var(--text-xs);
    }

    /* --- Reduce spacing universally --- */
    .gap-8 { gap: var(--space-6); }
    .gap-6 { gap: var(--space-4); }
}


/* =============================================
   LANDSCAPE PHONE
   ============================================= */

@media (max-height: 500px) and (orientation: landscape) {
    .hero-section {
        min-height: auto;
        padding: var(--space-8) 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-stats {
        margin-top: var(--space-6);
    }

    .auth-page {
        align-items: flex-start;
        padding-top: var(--space-4);
    }
}


/* =============================================
   PRINT STYLES
   ============================================= */

@media print {
    .mobile-bottom-nav,
    .hamburger-btn,
    .booking-mobile-bar,
    .booking-widget,
    .filter-drawer,
    .filter-drawer-overlay,
    .mobile-nav-drawer,
    .mobile-nav-backdrop,
    #particles-canvas {
        display: none !important;
    }

    body {
        background: #fff;
        color: #000;
        padding-bottom: 0;
    }

    .glass-panel,
    .glass-card,
    .glass-panel-light {
        background: #fff;
        border: 1px solid #ddd;
        backdrop-filter: none;
        box-shadow: none;
    }

    .text-gradient {
        background: none;
        -webkit-text-fill-color: initial;
        color: #000;
    }
}


/* =============================================
   REDUCED MOTION
   ============================================= */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .card:hover,
    .glass-card:hover,
    .destination-card:hover,
    .how-it-works-step:hover,
    .testimonial-card:hover,
    .dashboard-stat-card:hover {
        transform: none;
    }
}


/* =============================================
   HIGH CONTRAST / DARK MODE SUPPORT
   ============================================= */

@media (forced-colors: active) {
    .btn-primary,
    .btn-secondary {
        border: 2px solid currentColor;
    }

    .glass-panel,
    .glass-card {
        border: 1px solid currentColor;
    }

    .booking-widget {
        border: 1px solid currentColor;
    }
}