/* ============================================================
   download.css — Styles for download.html
   All comments in English. Uses variables from main.css.
   ============================================================ */

/* ── Hero ── */
.dl-hero {
    padding: 140px 0 80px;
}

.dl-hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 28px;
}

.dl-hero-logo {
    width: 16px;
    height: 16px;
    object-fit: contain;
}

.dl-hero-title {
    font-size: clamp(2.8rem, 6vw, 5rem);
    font-weight: 300;
    letter-spacing: -0.04em;
    line-height: 1.05;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.dl-hero-sub {
    color: var(--text-secondary);
}

.dl-hero-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    font-weight: 300;
    max-width: 560px;
    line-height: 1.7;
    margin-bottom: 48px;
}

/* Hero stat tiles */
.dl-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    max-width: 640px;
}

.dl-stat {
    background: var(--surface-color);
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: var(--border-radius-sm);
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.dl-stat-num {
    font-size: 1.6rem;
    font-weight: 500;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    line-height: 1;
}

.dl-stat-label {
    font-size: 0.72rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* ── Sticky Tabs ── */
.dl-tabs-wrap {
    position: sticky;
    top: 72px; /* matches nav height */
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
}

.dl-tabs {
    display: flex;
    gap: 4px;
    padding: 12px 0;
    overflow-x: auto;
    scrollbar-width: none;
}

.dl-tabs::-webkit-scrollbar {
    display: none;
}

.dl-tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: 999px;
    border: none;
    background: transparent;
    font-family: var(--font-family);
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--text-secondary);
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
    transition: var(--transition);
}

.dl-tab:hover {
    background: var(--surface-color);
    color: var(--text-primary);
}

.dl-tab.active {
    background: var(--text-primary);
    color: #ffffff;
}

/* ── Main panels ── */
.dl-main {
    padding: 48px 5vw 80px;
}

.dl-panel {
    display: none;
}

.dl-panel.active {
    display: block;
}

/* Two-column layout: 58% primary + 42% secondary */
.dl-panel-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: start;
}

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

/* ── Cards ── */
.dl-card {
    background: var(--surface-color);
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: var(--border-radius-md);
    padding: 32px;
    position: relative;
    transition: var(--transition);
}

.dl-card:hover {
    border-color: rgba(0,0,0,0.12);
}

.dl-card-primary {
    border-radius: var(--border-radius-lg);
    padding: 36px 40px;
}

.dl-secondary-col {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.dl-card-secondary {
    padding: 24px 28px;
    border-radius: var(--border-radius-sm);
}

.dl-card-info {
    padding: 24px 28px;
    border-radius: var(--border-radius-sm);
}

.dl-card-warning {
    background: #fffbeb;
    border-color: rgba(245, 158, 11, 0.2);
    padding: 24px 28px;
    border-radius: var(--border-radius-sm);
}

.dl-card-cli {
    background: #0f172a;
    border-color: #1e293b;
    padding: 24px 28px;
    border-radius: var(--border-radius-sm);
}

/* Card header with icon */
.dl-card-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
    margin-top: 16px;
}

.dl-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: var(--surface-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--text-primary);
    flex-shrink: 0;
}

.dl-card-header h2 {
    font-size: 1.4rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.dl-card-header p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* Compact header for secondary cards */
.dl-card-header-sm {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.dl-card-icon-sm {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--surface-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--text-primary);
    flex-shrink: 0;
}

.dl-card-header-sm h3 {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.dl-card-header-sm p {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 300;
}

.dl-card-header-sm .dl-badge {
    margin-left: auto;
    flex-shrink: 0;
}

.dl-card-desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 16px;
}

.dl-card-note {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 6px;
    margin-top: 14px;
}

/* ── Badges ── */
.dl-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.68rem;
    font-weight: 500;
    padding: 4px 10px;
    border-radius: 999px;
    letter-spacing: 0.01em;
}

.dl-badge-primary {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
    position: absolute;
    top: 20px;
    right: 20px;
}

.dl-badge-archived {
    background: #fffbeb;
    color: #92400e;
    border: 1px solid #fde68a;
}

.dl-badge-new {
    background: #eff6ff;
    color: #1d4ed8;
    border: 1px solid #bfdbfe;
}

.dl-badge-cli {
    background: #1e293b;
    color: #94a3b8;
    border: 1px solid #334155;
    font-family: monospace;
}

/* ── Feature chips ── */
.dl-feature-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.dl-feature-chips span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--text-primary);
    background: #ffffff;
    border: 1px solid rgba(0,0,0,0.08);
    padding: 5px 10px;
    border-radius: 8px;
}

.dl-chips-sm span {
    font-size: 0.7rem;
    padding: 3px 8px;
}

/* ── Format selector ── */
.dl-format-grid {
    background: #ffffff;
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: var(--border-radius-sm);
    padding: 16px 20px;
    margin-bottom: 20px;
}

.dl-format-label {
    font-size: 0.68rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
}

.dl-format-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.dl-format-row-linux {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 640px) {
    .dl-format-row-linux {
        grid-template-columns: 1fr 1fr;
    }
}

.dl-format-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    background: var(--surface-color);
    border: 1px solid transparent;
    border-radius: 10px;
    padding: 10px 8px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
    font-size: 0.7rem;
    text-decoration: none;
}

.dl-format-btn:hover {
    background: #eff6ff;
    border-color: rgba(26,115,232,0.3);
    color: #1a73e8;
}

.dl-format-btn-active {
    background: #eff6ff;
    border-color: rgba(26,115,232,0.2);
}

.dl-ext {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

.dl-format-btn:hover .dl-ext {
    color: #1a73e8;
}

/* ── Primary download button with pulse animation ── */
.dl-btn-full {
    width: 100%;
    justify-content: center;
    border-radius: var(--border-radius-sm) !important;
    padding: 14px 24px;
}

.dl-btn-pulse {
    animation: dl-pulse 2.4s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes dl-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.82; }
}

/* Small buttons in secondary cards */
.dl-btn-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.dl-btn-sm {
    font-size: 0.8rem !important;
    padding: 8px 16px !important;
    border-radius: var(--border-radius-sm) !important;
    gap: 6px !important;
}

/* ── Checklist ── */
.dl-checklist {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 12px;
}

.dl-checklist li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.5;
}

.dl-checklist li .fa-check {
    color: #1e8e3e;
    flex-shrink: 0;
    margin-top: 2px;
}

.dl-checklist-warning li {
    color: #92400e;
}

.dl-checklist-warning li .fa-chevron-right {
    color: #d97706;
    flex-shrink: 0;
    margin-top: 2px;
}

.dl-card-info h3,
.dl-card-warning h3 {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 7px;
}

.dl-card-warning h3 {
    color: #92400e;
}

/* ── iOS grid (3-col) ── */
.dl-notice {
    display: flex;
    gap: 16px;
    padding: 18px 22px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 28px;
    align-items: flex-start;
}

.dl-notice-warning {
    background: #fffbeb;
    border: 1px solid rgba(245,158,11,0.25);
    color: #92400e;
}

.dl-notice-warning > .fa-triangle-exclamation {
    font-size: 1.1rem;
    color: #d97706;
    flex-shrink: 0;
    margin-top: 2px;
}

.dl-notice strong {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 6px;
}

.dl-notice p {
    font-size: 0.8rem;
    line-height: 1.65;
    font-weight: 300;
}

.dl-ios-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

@media (max-width: 860px) {
    .dl-ios-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 560px) {
    .dl-ios-grid {
        grid-template-columns: 1fr;
    }
}

.dl-card-ios {
    padding: 28px;
    border-radius: var(--border-radius-md);
}

.dl-card-icon-ios {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 16px;
}

.dl-card-ios h3 {
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}

.dl-ios-tagline {
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 300;
}

.dl-ios-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 500;
    padding: 3px 8px;
    border-radius: 6px;
    margin-bottom: 12px;
}

.dl-appleid-guide {
    margin-top: 8px;
}

.dl-appleid-guide h3 {
    margin-bottom: 10px;
}

.dl-appleid-guide p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.7;
    font-weight: 300;
}

/* ── Terminal block ── */
.dl-terminal {
    background: #000000;
    border-radius: 8px;
    padding: 14px 16px;
    margin: 14px 0;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.72rem;
    line-height: 1.8;
}

.dl-terminal-comment {
    color: #64748b;
}

.dl-terminal-cmd {
    color: #4ade80;
}

.dl-terminal-cursor {
    color: #94a3b8;
    display: flex;
    gap: 4px;
    align-items: center;
    margin-top: 2px;
}

.dl-cursor-blink {
    display: inline-block;
    animation: dl-cursor 1.1s step-end infinite;
    line-height: 1;
}

@keyframes dl-cursor {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.dl-btn-cli {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #1e293b;
    border: 1px solid #334155;
    color: #cbd5e1;
    border-radius: 8px;
    padding: 8px 14px;
    font-size: 0.78rem;
    font-weight: 400;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
}

.dl-btn-cli:hover {
    background: #334155;
    color: #f1f5f9;
}

/* ── Quick Start ── */
.dl-quickstart {
    background: var(--surface-color);
    border-top: 1px solid rgba(0,0,0,0.06);
    padding: 80px 0 96px;
}

.dl-qs-header {
    text-align: center;
    margin-bottom: 56px;
}

.dl-qs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 960px;
    margin: 0 auto;
}

@media (max-width: 720px) {
    .dl-qs-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
    }
}

.dl-qs-step {
    background: #ffffff;
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: var(--border-radius-md);
    padding: 28px;
    min-width: 0; /* allow grid item to shrink below content size */
    overflow: hidden;
}

.dl-qs-num {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 16px;
}

.dl-qs-step h3 {
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 10px;
}

.dl-qs-step p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.7;
    font-weight: 300;
    margin-bottom: 14px;
    overflow-wrap: break-word;
    word-break: break-word;
}

.dl-qs-tip {
    background: var(--surface-color);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 0.78rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.dl-qs-code {
    background: #eff6ff;
    border-radius: 8px;
    padding: 10px 12px;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.72rem;
    color: #1a73e8;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 100%;
}

.dl-qs-status {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #ecfdf5;
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 0.78rem;
    color: #065f46;
    font-weight: 400;
}

.dl-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10b981;
    flex-shrink: 0;
    animation: dl-pulse 1.8s ease-in-out infinite;
}

.dl-qs-more {
    text-align: center;
    margin-top: 36px;
}

.dl-qs-more a {
    font-size: 0.88rem;
    color: #1a73e8;
    font-weight: 400;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.dl-qs-more a:hover {
    gap: 10px;
}

/* ── FAQ ── */
.dl-faq {
    padding: 80px 0 96px;
    border-top: 1px solid rgba(0,0,0,0.06);
}

.dl-faq-header {
    margin-bottom: 48px;
}

.dl-faq-list {
    max-width: 760px;
}

.dl-faq-item {
    border-bottom: 1px solid rgba(0,0,0,0.07);
    cursor: pointer;
}

.dl-faq-item summary {
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
    font-size: 0.92rem;
    font-weight: 400;
    color: var(--text-primary);
    cursor: pointer;
    user-select: none;
}

.dl-faq-item summary::-webkit-details-marker {
    display: none;
}

.dl-faq-item summary::after {
    content: '+';
    font-size: 1.2rem;
    font-weight: 300;
    color: var(--text-secondary);
    flex-shrink: 0;
    margin-left: 16px;
    transition: transform 0.25s ease;
}

.dl-faq-item[open] summary::after {
    content: '−';
}

.dl-faq-body {
    font-size: 0.83rem;
    color: var(--text-secondary);
    line-height: 1.75;
    font-weight: 300;
    padding-bottom: 20px;
}

/* ── GitHub repo link ── */
.dl-github-link {
    margin: 10px 0 0;
    font-size: 0.78rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.dl-github-link a {
    color: var(--text-secondary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: color 0.2s ease;
}

.dl-github-link a:hover {
    color: var(--text-primary);
}

.dl-github-link .fa-github {
    font-size: 0.9em;
    opacity: 0.75;
}

.dl-github-deleted {
    color: var(--text-secondary);
    opacity: 0.55;
    cursor: default;
    display: flex;
    align-items: center;
    gap: 5px;
}

.dl-github-closed {
    opacity: 0.5;
    cursor: default;
    display: flex;
    align-items: center;
    gap: 5px;
}

.dl-github-cli a {
    color: rgba(148, 163, 184, 0.7);
}

.dl-github-cli a:hover {
    color: rgba(148, 163, 184, 1);
}

/* ── Responsive overrides ── */
@media (max-width: 640px) {
    .dl-hero {
        padding: 110px 0 48px;
    }

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

    .dl-hero-title {
        font-size: 2.4rem;
    }

    .dl-card-primary {
        padding: 24px;
    }

    .dl-card-secondary,
    .dl-card-info,
    .dl-card-warning,
    .dl-card-cli {
        padding: 20px;
    }

    .dl-format-row {
        grid-template-columns: 1fr 1fr;
    }

    .dl-qs-step {
        padding: 20px;
    }

    .dl-qs-grid {
        max-width: 100%;
    }

    /* On narrow screens allow code box to scroll instead of clipping */
    .dl-qs-code {
        overflow-x: auto;
        text-overflow: clip;
    }

    .dl-notice {
        padding: 14px 16px;
        gap: 12px;
    }
}