/* 
 * Motorola Mobility — Official Firmware & System Recovery Catalog
 * Open, Airy & Fluid Minimalist Design
 * Typography directly inspired by Motorola's Hello UI Brand Guidelines (ryan_site):
 *  - Afacad Flux (Display / Brand Title)
 *  - Space Grotesk (Section Headers & Interface Headings)
 *  - Martian Mono (Technical Specs, Dates, Checksums & Action Links)
 */

:root {
    --font-display: "Afacad Flux", "Space Grotesk", sans-serif;
    --font-sans: "Space Grotesk", "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: "Martian Mono", "JetBrains Mono", SFMono-Regular, Consolas, monospace;
    
    --bg-page: var(--android-color-surface, #fafafa);
    --bg-card: var(--android-color-surface, #ffffff);
    
    --text-primary: var(--android-color-on-surface, #111111);
    --text-secondary: var(--android-color-on-surface, #444444);
    --text-muted: var(--android-color-on-surface, #777777);
    --text-light: var(--android-color-on-surface, #999999);
    
    --border-divider: var(--android-color-on-surface, #e5e7eb);
    --border-dark: var(--android-color-on-surface, #111111);
    
    --accent-green: #15803d;
    --accent-red: var(--android-color-error, #b91c1c);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-page: var(--android-color-surface, #121212);
        --bg-card: var(--android-color-surface, #1e1e1e);
        
        --text-primary: var(--android-color-on-surface, #e6e1e5);
        --text-secondary: var(--android-color-on-surface, #cac4d0);
        --text-muted: var(--android-color-on-surface, #938f99);
        --text-light: var(--android-color-on-surface, #79747e);
        
        --border-divider: rgba(230, 225, 229, 0.15);
        --border-dark: var(--android-color-on-surface, #e6e1e5);
        
        --accent-green: #4ade80;
        --accent-red: var(--android-color-error, #f2b8b5);
    }
}

html.dark, html[data-is-dark-mode="true"], :root[data-is-dark-mode="true"] {
    --bg-page: var(--android-color-surface, #121212);
    --bg-card: var(--android-color-surface, #1e1e1e);
    
    --text-primary: var(--android-color-on-surface, #e6e1e5);
    --text-secondary: var(--android-color-on-surface, #cac4d0);
    --text-muted: var(--android-color-on-surface, #938f99);
    --text-light: var(--android-color-on-surface, #79747e);
    
    --border-divider: rgba(230, 225, 229, 0.15);
    --border-dark: var(--android-color-on-surface, #e6e1e5);
    
    --accent-green: #4ade80;
    --accent-red: var(--android-color-error, #f2b8b5);
}

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

html {
    font-size: 15px;
    background-color: var(--bg-page);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* TOP BRAND HEADER BAR */
.moto-top-bar {
    background: transparent;
    color: var(--text-primary);
    padding: 1.25rem 3vw;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-divider);
}

.moto-brand-badge {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.moto-logo-img {
    height: 28px;
    width: 28px;
    display: block;
    object-fit: contain;
}

.moto-title-text {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.15rem;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    text-transform: lowercase;
}

.moto-title-text span {
    color: var(--text-muted);
    font-weight: 400;
}

.top-bar-tag {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

/* MAIN CONTENT WRAPPER */
.main-content-wrapper {
    flex: 1;
    padding: 3rem 3vw 5rem 3vw;
}

.container {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

/* HERO / SITE HEADER */
section.site-header {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
    margin-bottom: 3rem;
}

.header-tag-line {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    margin-bottom: 0.6rem;
}

section.site-header h1 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.025em;
    margin-bottom: 0.75rem;
    line-height: 1.15;
}

section.site-header p.subtitle {
    font-family: var(--font-sans);
    font-size: 1.05rem;
    color: var(--text-secondary);
    font-weight: 400;
    max-width: 920px;
    line-height: 1.6;
}

/* SEARCH & FILTER SECTION */
.filter-section {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
    margin-bottom: 3.5rem;
}

.search-box input {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--border-dark);
    border-radius: 0;
    color: var(--text-primary);
    font-family: var(--font-mono);
    padding: 0.75rem 0;
    font-size: 0.95rem;
    outline: none;
    margin-bottom: 1.5rem;
    transition: border-color 0.15s ease;
}

.search-box input:focus {
    border-bottom-color: #000000;
}

.search-box input::placeholder {
    color: var(--text-light);
}

.category-chips {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    align-items: center;
}

.chip-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-right: 0.2rem;
}

.chip {
    background: transparent;
    color: var(--text-muted);
    border: none;
    border-bottom: 2px solid transparent;
    border-radius: 0;
    padding: 0.25rem 0.5rem;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
}

.chip.active, .chip:hover {
    color: var(--text-primary);
    border-bottom-color: var(--text-primary);
    font-weight: 700;
}

/* CATALOG SECTION */
.catalog-section {
    margin-bottom: 3rem;
}

.release-channel-group {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
    margin-bottom: 3.5rem;
}

.channel-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 0.65rem;
    border-bottom: 1.5px solid var(--text-primary);
}

.channel-title-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.channel-header h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.channel-subtext {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-muted);
}

.release-date-text {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    white-space: nowrap;
}

/* TABLES */
.devsite-table-wrapper {
    overflow-x: auto;
}

table.devsite-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    text-align: left;
}

table.devsite-table th {
    background: transparent;
    color: var(--text-muted);
    padding: 0.65rem 0;
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--border-divider);
}

table.devsite-table td {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-divider);
    color: var(--text-primary);
    vertical-align: middle;
}

table.devsite-table tbody tr:last-child td {
    border-bottom: 1px solid var(--border-divider);
}

table.devsite-table tbody tr {
    transition: background-color 0.12s ease;
}

.text-right {
    text-align: right;
}

.version-build {
    font-family: var(--font-sans);
    font-weight: 700;
    color: var(--text-primary);
}

.size-text {
    font-weight: 400;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    white-space: nowrap;
}

.sha-checksum {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    word-break: break-all;
    display: inline-block;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color 0.12s ease;
}

.sha-checksum:hover, .sha-checksum.copied {
    color: var(--text-primary);
    font-weight: 600;
}

/* BUTTONS */
.btn-download {
    background: var(--text-primary);
    color: #ffffff;
    border: none;
    border-radius: 3px;
    padding: 0.45rem 0.9rem;
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 0.78rem;
    cursor: pointer;
    transition: all 0.15s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    text-decoration: none;
}

.btn-download:hover:not(:disabled) {
    background: #333333;
}

.btn-download:disabled {
    background: var(--border-divider);
    color: var(--text-light);
    cursor: not-allowed;
}

.btn-block {
    width: 100%;
    justify-content: center;
    padding: 0.75rem;
}

.loading-spinner {
    padding: 3rem 0;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.88rem;
    text-align: center;
}

/* MODAL OVERLAY */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(250, 250, 250, 0.85);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1.5rem;
}

.modal-content {
    background: #ffffff;
    border: 1px solid var(--border-divider);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
    border-radius: 6px;
    padding: 2.25rem;
    max-width: 480px;
    width: 100%;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 0.2rem;
    transition: color 0.12s ease;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-header-tag {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}

.modal-content h3 {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
}

.modal-content p {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.asset-info {
    background: var(--bg-page);
    border: 1px solid var(--border-divider);
    border-radius: 4px;
    padding: 0.75rem 0.9rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
    word-break: break-all;
}

.verification-box {
    background: transparent;
    border: 1px solid var(--border-divider);
    border-radius: 4px;
    padding: 1rem;
    text-align: center;
    margin-bottom: 1.25rem;
}

.verification-checkbox-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
}

.verification-checkbox-wrapper input[type="checkbox"] {
    width: 1.1rem;
    height: 1.1rem;
    accent-color: var(--text-primary);
    cursor: pointer;
}

.verification-checkbox-wrapper label {
    font-family: var(--font-sans);
    font-weight: 600;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 0.88rem;
}

.result-box {
    margin-top: 1.25rem;
    padding: 0.85rem;
    font-size: 0.82rem;
    word-break: break-all;
    border-radius: 4px;
}

.result-success {
    background: #f0fdf4;
    color: var(--accent-green);
    border: 1px solid #bbf7d0;
}

.result-error {
    background: #fef2f2;
    color: var(--accent-red);
    border: 1px solid #fecaca;
}

.download-url-link {
    color: var(--text-primary);
    font-weight: 600;
    word-break: break-all;
    display: inline-block;
}

/* FOOTER */
footer.site-footer {
    background: transparent;
    color: var(--text-muted);
    padding: 2.5rem 1.5rem;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    border-top: 1px solid var(--border-divider);
    margin-top: auto;
}

footer.site-footer p {
    margin-bottom: 0.3rem;
}

footer.site-footer a {
    color: var(--text-primary);
    text-decoration: underline;
}

/* RESPONSIVE DESIGN */
@media (max-width: 640px) {
    .moto-top-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.4rem;
    }

    section.site-header h1 {
        font-size: 1.85rem;
    }
}