/* ============================================
   Homepage - Waterfall Grid & Search
   ============================================ */

/* Hero */
.hero {
    position: relative;
    padding: 4rem var(--space-lg) 3rem;
    text-align: center;
    background: linear-gradient(135deg, var(--color-dark) 0%, #2d1a1a 50%, var(--color-dark) 100%);
    color: var(--color-white);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.hero__title {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    position: relative;
}

.hero__subtitle {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.15em;
    margin-bottom: 2rem;
    position: relative;
}

.hero__deco {
    width: 40px;
    height: 2px;
    background: var(--color-gold);
    margin: 0 auto 1.5rem;
    position: relative;
}

/* Search Bar */
.search-bar {
    position: relative;
    max-width: 420px;
    margin: 0 auto;
    z-index: 10;
}

.search-bar__input {
    width: 100%;
    padding: 0.85rem 1.2rem 0.85rem 3rem;
    border: none;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--color-white);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    outline: none;
    transition: all var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.search-bar__input::placeholder {
    color: rgba(255, 255, 255, 0.45);
}

.search-bar__input:focus {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(197, 163, 101, 0.15);
}

.search-bar__icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: rgba(255, 255, 255, 0.45);
    pointer-events: none;
}

/* Search Results Dropdown */
.search-results {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    max-height: 320px;
    overflow-y: auto;
    display: none;
    z-index: 100;
}

.search-results.active {
    display: block;
}

.search-results__item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem 1rem;
    cursor: pointer;
    transition: background var(--transition-fast);
    border-bottom: 1px solid var(--color-border);
    text-decoration: none;
}

.search-results__item:last-child {
    border-bottom: none;
}

.search-results__item:hover {
    background: #f8f6f2;
}

.search-results__img {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
}

.search-results__info {
    flex: 1;
    min-width: 0;
}

.search-results__name {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-dark);
}

.search-results__path {
    font-size: 0.7rem;
    color: var(--color-gray-light);
    margin-top: 2px;
}

.search-results__empty {
    padding: 2rem 1rem;
    text-align: center;
    color: var(--color-gray-light);
    font-size: 0.85rem;
}

/* Filter Tabs */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: var(--space-lg) 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.filter-bar::-webkit-scrollbar {
    display: none;
}

.filter-tab {
    padding: 0.5rem 1.2rem;
    font-size: 0.8rem;
    font-family: var(--font-sans);
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    background: var(--color-white);
    color: var(--color-gray);
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition-fast);
    user-select: none;
}

.filter-tab:hover {
    border-color: var(--color-gray-light);
    color: var(--color-dark);
}

.filter-tab.active {
    background: var(--color-dark);
    color: var(--color-white);
    border-color: var(--color-dark);
}

/* Waterfall Grid */
.waterfall {
    columns: 2;
    column-gap: 12px;
    padding-bottom: var(--space-2xl);
}

.waterfall__card {
    break-inside: avoid;
    margin-bottom: 12px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-block;
    width: 100%;
    border: 1px solid var(--color-border);
}

.waterfall__card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.waterfall__card a {
    display: block;
    text-decoration: none;
    color: inherit;
}

.waterfall__img-wrap {
    position: relative;
    overflow: hidden;
}

.waterfall__img {
    width: 100%;
    height: auto;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-slow);
}

.waterfall__card:hover .waterfall__img {
    transform: scale(1.05);
}

.waterfall__country-badge {
    position: absolute;
    top: 0.6rem;
    left: 0.6rem;
    padding: 0.15em 0.6em;
    font-size: 0.65rem;
    border-radius: var(--radius-full);
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.waterfall__body {
    padding: 0.8rem;
}

.waterfall__title {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 0.3rem;
    line-height: 1.3;
}

.waterfall__summary {
    font-size: 0.72rem;
    color: var(--color-gray);
    line-height: 1.5;
    margin-bottom: 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.waterfall__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.waterfall__tag {
    font-size: 0.6rem;
    padding: 0.15em 0.5em;
    border-radius: var(--radius-full);
    background: #f5f1e8;
    color: var(--color-gray);
}

/* Section header */
.section-header {
    padding: var(--space-xl) 0 var(--space-md);
    text-align: center;
}

.section-header__label {
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-gold);
    font-weight: 500;
}

.section-header__title {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    color: var(--color-dark);
    margin-top: 0.3rem;
}

/* Empty state */
.empty-state {
    padding: 4rem var(--space-lg);
    text-align: center;
    color: var(--color-gray-light);
}

.empty-state__icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.empty-state__text {
    font-size: 0.9rem;
}

/* ============================================
   Side Drawer Navigation
   ============================================ */

/* Hamburger trigger button */
.nav-trigger {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 200;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: none;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-normal);
}

.nav-trigger:hover {
    background: rgba(0, 0, 0, 0.7);
}

/* Three-line hamburger icon built with spans */
.nav-trigger__icon {
    width: 18px;
    height: 14px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.nav-trigger__icon span {
    display: block;
    width: 100%;
    height: 2px;
    background: #fff;
    border-radius: 1px;
    transition: all 0.3s ease;
    transform-origin: center;
}

/* Animate to X when open */
.nav-trigger.open .nav-trigger__icon span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}
.nav-trigger.open .nav-trigger__icon span:nth-child(2) {
    opacity: 0;
}
.nav-trigger.open .nav-trigger__icon span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* Overlay backdrop */
.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 150;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.nav-overlay.open {
    opacity: 1;
    visibility: visible;
}

/* Drawer panel */
.nav-drawer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 280px;
    max-width: 80vw;
    background: var(--color-paper);
    z-index: 160;
    transform: translateX(-100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    box-shadow: 4px 0 25px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
}

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

.nav-drawer__header {
    padding: 2rem 1.5rem 1.2rem;
    border-bottom: 1px solid var(--color-border);
}

.nav-drawer__title {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-dark);
}

.nav-drawer__subtitle {
    font-size: 0.7rem;
    color: var(--color-gray-light);
    margin-top: 0.2rem;
    letter-spacing: 0.05em;
}

.nav-drawer__section {
    padding: 1rem 1.5rem 0.5rem;
}

.nav-drawer__label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-gray-light);
    font-weight: 500;
    margin-bottom: 0.6rem;
}

.nav-drawer__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-drawer__item a {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.7rem 0.8rem;
    border-radius: var(--radius-md);
    color: var(--color-dark);
    font-size: 0.88rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.nav-drawer__item a:hover {
    background: rgba(158, 51, 46, 0.06);
    color: var(--color-primary);
}

.nav-drawer__item a .flag {
    font-size: 1.2rem;
    width: 1.6rem;
    text-align: center;
    flex-shrink: 0;
}

.nav-drawer__item a .arrow {
    margin-left: auto;
    width: 16px;
    height: 16px;
    color: var(--color-gray-light);
    flex-shrink: 0;
}

.nav-drawer__item a:hover .arrow {
    color: var(--color-primary);
}

.nav-drawer__footer {
    margin-top: auto;
    padding: 1.2rem 1.5rem;
    border-top: 1px solid var(--color-border);
    font-size: 0.65rem;
    color: var(--color-gray-light);
    text-align: center;
}

/* Responsive */
@media (max-width: 374px) {
    .waterfall {
        columns: 1;
    }
    .waterfall__img {
        aspect-ratio: 4 / 3;
    }
}

@media (max-width: 639px) {
    .hero {
        padding: 3rem var(--space-lg) 2rem;
    }
    .hero__title {
        font-size: 2rem;
    }
    .hero__subtitle {
        font-size: 0.75rem;
        margin-bottom: 1.5rem;
    }
    .hero__deco {
        margin-bottom: 1rem;
    }
}

@media (min-width: 640px) {
    .hero__title {
        font-size: 3rem;
    }
    .waterfall {
        columns: 3;
        column-gap: 16px;
    }
    .waterfall__card {
        margin-bottom: 16px;
    }
}

@media (min-width: 1024px) {
    .waterfall {
        columns: 4;
        column-gap: 20px;
    }
    .waterfall__card {
        margin-bottom: 20px;
    }
}