/* ==========================================================================
   Hero
   ========================================================================== */

/* Hero shell */
.gr-hero {
    position: relative;
    min-height: 580px;
    display: flex;
    align-items: center;
    padding: 6rem 0 5rem;
    overflow: hidden;
    isolation: isolate;
    background-color: #0a1428;
    background-image: var(--hero-bg, none);
    background-size: cover;
    background-position: center 40%;
}

/* Multi-layer overlay: heavy left (text legibility), fades right (reveals image) */
.gr-hero-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(
            100deg,
            rgba(8, 13, 24, 0.95) 0%,
            rgba(8, 13, 24, 0.82) 40%,
            rgba(8, 13, 24, 0.45) 65%,
            rgba(8, 13, 24, 0.20) 100%
    ),
    linear-gradient(to bottom, transparent 60%, rgba(8, 13, 24, 0.75) 100%);
}

/* CSS gradient fallback — used when no hero image is set */
.gr-hero--gradient {
    background-image: radial-gradient(ellipse 110% 90% at 75% 45%, #0d2544 0%, #080d18 65%),
    radial-gradient(ellipse 50% 60% at 10% 90%, rgba(0, 201, 177, 0.05) 0%, transparent 60%);
}

.gr-hero--gradient .gr-hero-overlay {
    background: radial-gradient(ellipse 70% 60% at 75% 40%, rgba(0, 80, 120, 0.3) 0%, transparent 60%),
    linear-gradient(160deg, rgba(8, 13, 24, 0) 0%, rgba(8, 13, 24, 0.2) 100%);
}

/* Animated radar SVG — right-side decorative element */
.gr-hero-radar {
    position: absolute;
    right: -4%;
    top: 50%;
    transform: translateY(-50%);
    width: min(580px, 55vw);
    height: min(580px, 55vw);
    color: var(--gr-accent);
    opacity: 0.1;
    pointer-events: none;
    z-index: 2;
}

.gr-hero--image .gr-hero-radar {
    opacity: 0.18;
    color: #ffffff;
    filter: drop-shadow(0 0 8px rgba(0, 201, 177, 0.4));
}

.gr-radar-sweep,
.gr-radar-sweep-fade {
    transform-origin: 350px 350px;
    animation: radar-sweep 7s linear infinite;
}

@keyframes radar-sweep {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Content — LEFT aligned, constrained width */
.gr-hero .gr-container {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: relative;
    z-index: 3;
    width: 100%;
}

.gr-hero-content {
    position: relative;
    z-index: 3;
    width: 100%;
    max-width: 580px;
    margin-left: 0;
    margin-right: auto;
    text-align: left;
}

/* Eyebrow label above heading */
.gr-hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--gr-font-mono);
    font-size: 0.67rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--gr-accent);
    margin-bottom: 1.25rem;
}

.gr-hero-eyebrow::before {
    content: '';
    display: block;
    width: 18px;
    height: 1px;
    background: var(--gr-accent);
    flex-shrink: 0;
}

/* Heading */
.gr-hero-heading {
    font-family: var(--gr-font-display);
    font-size: clamp(2rem, 4.2vw, 3.4rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--gr-dark-text-1);
    margin-bottom: 1.25rem;
}

.gr-hero-heading-accent {
    color: var(--gr-accent);
    display: block;
}

/* Subheading */
.gr-hero-subheading {
    font-size: 1rem;
    font-weight: 300;
    color: var(--gr-dark-text-2);
    line-height: 1.72;
    max-width: 480px;
    margin-bottom: 2.25rem;
}

/* Search bar — dark glass style */
.gr-search-bar {
    display: flex;
    align-items: center;
    max-width: 480px;
    background: rgba(13, 20, 37, 0.8);
    backdrop-filter: blur(12px);
    border: 1px solid var(--gr-dark-border-2);
    border-radius: var(--gr-radius);
    overflow: hidden;
    transition: border-color var(--gr-dur) var(--gr-ease), box-shadow var(--gr-dur) var(--gr-ease);
    margin-bottom: 0.6rem;
}

.gr-search-bar:focus-within {
    border-color: var(--gr-accent-border);
    box-shadow: var(--gr-accent-glow);
}

.gr-search-icon {
    padding: 0 0 0 1rem;
    color: var(--gr-dark-text-3);
    font-size: 0.85rem;
    flex-shrink: 0;
}

.gr-search-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    padding: 0.8rem 0.75rem;
    color: var(--gr-dark-text-1);
    font-family: var(--gr-font-sans);
    font-size: 0.9rem;
    min-width: 0;
}

.gr-search-input::placeholder {
    color: var(--gr-dark-text-3);
}

.gr-search-btn {
    flex-shrink: 0;
    background: var(--gr-accent);
    border: none;
    padding: 0.8rem 1.2rem;
    color: var(--gr-dark);
    font-family: var(--gr-font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--gr-dur) var(--gr-ease);
}

.gr-search-btn:hover {
    background: var(--gr-accent-dark);
}

/* CTA buttons row */
.gr-hero-ctas {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1.75rem;
}

/* Bottom fade — dissolves dark hero into the stats bar */
.gr-hero-fade-bottom {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to bottom, transparent, #080d18);
    z-index: 2;
    pointer-events: none;
}

/* --------------------------------------------------------------------------
   Stats Bar
   -------------------------------------------------------------------------- */
.gr-stats-bar {
    background: var(--gr-dark-1);
    border-bottom: 1px solid var(--gr-dark-border);
    padding: 1.25rem 0;
}

.gr-stats-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.gr-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.4rem 2.75rem;
    position: relative;
}

.gr-stat-item + .gr-stat-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 15%;
    height: 70%;
    width: 1px;
    background: var(--gr-dark-border);
}

.gr-stat-value {
    font-family: var(--gr-font-display);
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--gr-accent);
    line-height: 1;
    letter-spacing: -0.02em;
}

.gr-stat-label {
    font-family: var(--gr-font-mono);
    font-size: 0.61rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gr-dark-text-3);
    margin-top: 0.3rem;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.35;
    }
}

.gr-stat-value.is-loading {
    color: var(--gr-dark-text-3);
    animation: pulse 1.5s ease-in-out infinite;
}

/* --------------------------------------------------------------------------
   Entry Point Cards
   -------------------------------------------------------------------------- */
.gr-entry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
}

.gr-entry-card {
    background: var(--gr-light);
    border: 1px solid var(--gr-light-border);
    border-radius: var(--gr-radius-lg);
    padding: 1.75rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    text-decoration: none;
    color: inherit;
    transition: all var(--gr-dur) var(--gr-ease);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.gr-entry-card:hover {
    border-color: var(--gr-accent-border);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08), var(--gr-accent-glow);
    color: inherit;
}

.gr-entry-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--gr-radius);
    background: var(--gr-accent-dim);
    border: 1px solid var(--gr-accent-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    color: var(--gr-accent-dark);
}

.gr-entry-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gr-text-1);
}

.gr-entry-desc {
    font-size: 0.8rem;
    color: var(--gr-text-2);
    line-height: 1.55;
}

/* --------------------------------------------------------------------------
   Featured Catalog Cards
   -------------------------------------------------------------------------- */
.gr-catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
    gap: 1.5rem;
}

.gr-catalog-card {
    position: relative;
    background: var(--gr-light);
    border: 1px solid var(--gr-light-border);
    border-radius: var(--gr-radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    text-decoration: none;
    color: inherit;
    transition: all var(--gr-dur) var(--gr-ease);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

/* Accent bar that animates in on hover */
.gr-catalog-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 1.5rem;
    right: 1.5rem;
    height: 2px;
    background: var(--gr-accent);
    border-radius: 0 0 2px 2px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--gr-dur) var(--gr-ease);
}

.gr-catalog-card:hover {
    border-color: var(--gr-accent-border);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.09), var(--gr-accent-glow);
    color: inherit;
}

.gr-catalog-card:hover::before {
    transform: scaleX(1);
}

.gr-catalog-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
}

.gr-catalog-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--gr-radius);
    background: var(--gr-accent-dim);
    border: 1px solid var(--gr-accent-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
    color: var(--gr-accent-dark);
    flex-shrink: 0;
}

.gr-format-badge {
    font-family: var(--gr-font-mono);
    font-size: 0.58rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    background: var(--gr-light-1);
    color: var(--gr-text-3);
    border: 1px solid var(--gr-light-border);
}

.gr-catalog-name {
    font-size: 0.975rem;
    font-weight: 600;
    color: var(--gr-text-1);
    line-height: 1.3;
}

.gr-catalog-provider {
    font-family: var(--gr-font-mono);
    font-size: 0.7rem;
    color: var(--gr-text-3);
    margin-top: 0.2rem;
}

.gr-catalog-desc {
    font-size: 0.83rem;
    color: var(--gr-text-2);
    line-height: 1.6;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.gr-catalog-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-top: 0.85rem;
    border-top: 1px solid var(--gr-light-border);
    flex-wrap: wrap;
}

.gr-catalog-meta-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-family: var(--gr-font-mono);
    font-size: 0.7rem;
    color: var(--gr-text-3);
}


/* ==========================================================================
   Datasets List Section
   ========================================================================== */

/* Section wrapper */
.gr-datasets-section {
    background: var(--gr-light-1);
    border-top: 1px solid var(--gr-light-border);
    padding: 5rem 0;
}

/* Two-column layout: sidebar | results */
.gr-datasets-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 2.5rem;
    align-items: start;
}

/* --------------------------------------------------------------------------
   Sidebar
   -------------------------------------------------------------------------- */
.gr-sidebar {
    position: sticky;
    top: 78px; /* clear the 58px navbar + 20px breathing room */
}

/* Search input */
.gr-sidebar-search {
    display: flex;
    align-items: center;
    background: var(--gr-light);
    border: 1px solid var(--gr-light-border-2);
    border-radius: var(--gr-radius);
    overflow: hidden;
    margin-bottom: 1rem;
    transition: border-color var(--gr-dur) var(--gr-ease), box-shadow var(--gr-dur) var(--gr-ease);
}

.gr-sidebar-search:focus-within {
    border-color: var(--gr-accent-border);
    box-shadow: 0 0 0 3px var(--gr-accent-dim);
}

.gr-sidebar-search-icon {
    padding: 0 0 0 0.85rem;
    color: var(--gr-text-3);
    font-size: 0.85rem;
    flex-shrink: 0;
}

.gr-sidebar-search input {
    flex: 1;
    border: none;
    outline: none;
    padding: 0.7rem 0.75rem;
    font-family: var(--gr-font-sans);
    font-size: 0.88rem;
    color: var(--gr-text-1);
    background: transparent;
}

.gr-sidebar-search input::placeholder {
    color: var(--gr-text-3);
}

/* Filter accordion */
.gr-sidebar-filter {
    background: var(--gr-light);
    border: 1px solid var(--gr-light-border);
    border-radius: var(--gr-radius);
    overflow: hidden;
    margin-bottom: 0.75rem;
}

.gr-sidebar-filter-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.8rem 1rem;
    cursor: pointer;
    user-select: none;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gr-text-1);
    transition: background var(--gr-dur) var(--gr-ease);
}

.gr-sidebar-filter-header:hover {
    background: var(--gr-light-1);
}

.gr-sidebar-filter-header i {
    font-size: 0.75rem;
    color: var(--gr-text-3);
    transition: transform var(--gr-dur) var(--gr-ease);
}

.gr-sidebar-filter.is-open .gr-sidebar-filter-header i {
    transform: rotate(180deg);
}

.gr-sidebar-filter-body {
    border-top: 1px solid var(--gr-light-border);
    padding: 0.5rem;
    display: none;
}

.gr-sidebar-filter.is-open .gr-sidebar-filter-body {
    display: block;
}

/* Filter option button */
.gr-filter-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.83rem;
    color: var(--gr-text-2);
    transition: all var(--gr-dur) var(--gr-ease);
    border: none;
    background: none;
    width: 100%;
    text-align: left;
}

.gr-filter-option:hover {
    background: var(--gr-light-1);
    color: var(--gr-text-1);
}

.gr-filter-option.is-active {
    background: var(--gr-accent-dim);
    color: var(--gr-accent-dark);
    font-weight: 500;
}

.gr-filter-option-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gr-light-border-2);
    flex-shrink: 0;
    transition: background var(--gr-dur) var(--gr-ease);
}

.gr-filter-option.is-active .gr-filter-option-dot {
    background: var(--gr-accent);
}

/* --------------------------------------------------------------------------
   Dataset result cards
   -------------------------------------------------------------------------- */
.gr-dataset-results {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.gr-dataset-card {
    background: var(--gr-light);
    border: 1px solid var(--gr-light-border);
    border-radius: var(--gr-radius-lg);
    display: flex;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: all var(--gr-dur) var(--gr-ease);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.gr-dataset-card:hover {
    border-color: var(--gr-accent-border);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08), var(--gr-accent-glow);
    color: inherit;
}

/* Thumbnail — TiTiler preview or icon placeholder */
.gr-dataset-thumb {
    width: 140px;
    min-height: 120px;
    flex-shrink: 0;
    background: var(--gr-light-2);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.gr-dataset-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gr-dataset-thumb-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    color: var(--gr-text-3);
    font-size: 1.75rem;
    background: linear-gradient(135deg, var(--gr-light-2) 0%, var(--gr-light-1) 100%);
}

/* Card body */
.gr-dataset-body {
    flex: 1;
    padding: 1.1rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.gr-dataset-catalog {
    font-family: var(--gr-font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gr-accent-dark);
}

.gr-dataset-name {
    font-size: 0.975rem;
    font-weight: 600;
    color: var(--gr-text-1);
    line-height: 1.3;
}

.gr-dataset-desc {
    font-size: 0.82rem;
    color: var(--gr-text-2);
    line-height: 1.55;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.gr-dataset-tags {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
    margin-top: 0.3rem;
}

.gr-dataset-tag {
    font-family: var(--gr-font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.05em;
    padding: 0.18rem 0.5rem;
    border-radius: 20px;
    border: 1px solid var(--gr-light-border-2);
    color: var(--gr-text-2);
    background: var(--gr-light-1);
}

/* Active/inactive status dot */
.gr-dataset-active-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--gr-accent);
    box-shadow: 0 0 5px var(--gr-accent);
    flex-shrink: 0;
    display: inline-block;
}

.gr-dataset-active-dot.inactive {
    background: var(--gr-text-3);
    box-shadow: none;
}

/* Empty state */
.gr-empty-state {
    text-align: center;
    padding: 5rem 2rem;
    color: var(--gr-text-3);
}

.gr-empty-state i {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.gr-empty-state p {
    font-size: 0.875rem;
    color: var(--gr-text-2);
}

@media (max-width: 900px) {
    .gr-datasets-layout {
        grid-template-columns: 1fr;
    }

    .gr-sidebar {
        position: static;
    }
}


@media (max-width: 768px) {
    .gr-hero {
        min-height: auto;
        padding: 4rem 0 3rem;
    }

    .gr-hero-radar {
        display: none;
    }

    .gr-hero-heading {
        font-size: 2rem;
    }

    .gr-stats-grid {
        gap: 0;
    }

    .gr-stat-item {
        padding: 0.4rem 1.25rem;
    }

    .gr-stat-item + .gr-stat-item::before {
        display: none;
    }

    .gr-catalog-grid {
        grid-template-columns: 1fr;
    }

    .gr-entry-grid {
        grid-template-columns: 1fr 1fr;
    }

    .gr-dataset-thumb {
        width: 100px;
    }
}


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

    .gr-hero-ctas {
        flex-direction: column;
    }

    .gr-stats-grid {
        flex-direction: column;
        gap: 0.5rem;
    }

    .gr-dataset-thumb {
        display: none;
    }
}