/* ============================================================
   Download Page — Page-specific Styles
============================================================ */

/* ---- Page Hero ---- */
.dl-hero {
    padding-top: 160px;
    padding-bottom: 80px;
    position: relative;
    overflow: hidden;
}

.dl-hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(88px);
    pointer-events: none;
    z-index: 0;
    width: 560px; height: 360px;
    background: radial-gradient(ellipse, rgba(99,102,241,0.15) 0%, transparent 68%);
    top: 0; left: 50%; transform: translateX(-50%);
}

.dl-hero-content {
    position: relative;
    z-index: 1;
    max-width: 640px;
}

.dl-hero h1 {
    font-size: clamp(36px, 5vw, 60px);
    font-weight: 900;
    letter-spacing: -2px;
    line-height: 1.08;
    margin-bottom: 18px;
}

.dl-hero p {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.65;
    max-width: 520px;
}

/* ---- Platform Tabs ---- */
.platform-tabs-wrap {
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 48px;
}

.platform-tabs {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.ptab {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-subtle);
    background: var(--bg-surface);
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.ptab i { font-size: 15px; }

.ptab:hover {
    border-color: var(--border-default);
    color: var(--text-primary);
    background: var(--bg-subtle);
}

.ptab.active {
    background: var(--text-primary);
    border-color: var(--text-primary);
    color: #fff;
    box-shadow: var(--shadow-sm);
}

/* ---- Platform Panel ---- */
.platform-panel { display: none; }
.platform-panel.active { display: block; }

/* ---- Featured Download Card ---- */
.dl-featured {
    margin-bottom: 24px;
}

.dl-featured-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 40px 48px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 32px;
    align-items: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.dl-featured-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-brand-soft);
    opacity: 0;
    transition: opacity 0.3s var(--ease);
}

.dl-featured-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(99,102,241,0.18);
}

.dl-featured-card:hover::before { opacity: 1; }

/* Platform accent border (left stripe) */
.dl-featured-card::after {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 4px;
    border-radius: var(--radius-xl) 0 0 var(--radius-xl);
    background: var(--platform-color, var(--gradient-brand));
}

/* Platform color overrides */
.panel-windows  .dl-featured-card { --platform-color: #0078d4; }
.panel-macos    .dl-featured-card { --platform-color: #1d1d1f; }
.panel-android  .dl-featured-card { --platform-color: #3ddc84; }
.panel-ios      .dl-featured-card { --platform-color: #007aff; }
.panel-linux    .dl-featured-card { --platform-color: #fca500; }

.dl-featured-icon {
    width: 72px; height: 72px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 34px;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

/* Platform-specific icon bg */
.panel-windows  .dl-featured-icon { background: rgba(0,120,212,0.10);  color: #0078d4; }
.panel-macos    .dl-featured-icon { background: rgba(0,0,0,0.07);       color: #1d1d1f; }
.panel-android  .dl-featured-icon { background: rgba(61,220,132,0.12);  color: #3ddc84; }
.panel-ios      .dl-featured-icon { background: rgba(0,122,255,0.10);   color: #007aff; }
.panel-linux    .dl-featured-icon { background: rgba(252,165,0,0.12);   color: #fca500; }

.dl-featured-body { position: relative; z-index: 1; min-width: 0; }

.dl-featured-top {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.dl-featured-title {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.badge-recommend {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    background: rgba(16,185,129,0.10);
    color: #10b981;
    border: 1px solid rgba(16,185,129,0.2);
    border-radius: var(--radius-pill);
    font-size: 11.5px;
    font-weight: 700;
}

.badge-version {
    padding: 3px 10px;
    background: var(--bg-subtle);
    color: var(--text-muted);
    border-radius: var(--radius-pill);
    font-size: 11.5px;
    font-weight: 600;
}

.dl-featured-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.dl-feature-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.feature-tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    background: var(--bg-subtle);
    color: var(--text-secondary);
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 500;
}

.feature-tag i { font-size: 10px; color: var(--brand-from); }

.dl-featured-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    min-width: 160px;
}

.dl-btn-main {
    background: var(--gradient-brand);
    color: #fff;
    padding: 13px 22px;
    border-radius: var(--radius-pill);
    font-size: 14px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(99,102,241,0.3);
    white-space: nowrap;
}

.dl-btn-main:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(99,102,241,0.42);
    filter: brightness(1.05);
    color: #fff;
}

.dl-btn-meta {
    display: flex;
    gap: 8px;
}

.dl-btn-ghost {
    flex: 1;
    background: var(--bg-subtle);
    color: var(--text-secondary);
    padding: 9px 12px;
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: var(--transition);
    border: 1px solid var(--border-subtle);
    white-space: nowrap;
}

.dl-btn-ghost:hover {
    background: var(--bg-body);
    color: var(--text-primary);
    border-color: var(--border-default);
}

/* ---- Alternative Cards Grid ---- */
.dl-alt-label {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.dl-alt-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
    margin-bottom: 60px;
}

.dl-alt-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
    transition: var(--transition);
}

.dl-alt-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-default);
    transform: translateY(-2px);
}

.dl-alt-icon {
    width: 46px; height: 46px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.dl-alt-body { flex: 1; min-width: 0; }

.dl-alt-top {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
    flex-wrap: wrap;
}

.dl-alt-name { font-size: 15px; font-weight: 700; letter-spacing: -0.3px; }

.badge-paid {
    padding: 2px 8px;
    background: rgba(245,158,11,0.10);
    color: #f59e0b;
    border: 1px solid rgba(245,158,11,0.2);
    border-radius: var(--radius-pill);
    font-size: 11px;
    font-weight: 700;
}

.badge-free {
    padding: 2px 8px;
    background: rgba(16,185,129,0.10);
    color: #10b981;
    border: 1px solid rgba(16,185,129,0.2);
    border-radius: var(--radius-pill);
    font-size: 11px;
    font-weight: 700;
}

.dl-alt-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 14px;
}

.dl-alt-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.dl-alt-link {
    font-size: 13px;
    font-weight: 600;
    color: var(--brand-from);
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition);
}

.dl-alt-link:hover { color: var(--brand-mid); gap: 8px; }

/* ---- File variants row (for multiple arch downloads) ---- */
.dl-variants {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.dl-variant-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    background: var(--bg-subtle);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.dl-variant-btn:hover {
    background: var(--bg-surface);
    border-color: var(--brand-from);
    color: var(--brand-from);
    box-shadow: var(--shadow-xs);
}

.dl-variant-btn i { font-size: 11px; }

/* ---- Download Tips / Safety section ---- */
.dl-tips {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 48px;
    margin-bottom: 100px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.dl-tip-item {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.dl-tip-icon {
    width: 44px; height: 44px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.tip-green  { background: rgba(16,185,129,0.10); color: #10b981; }
.tip-blue   { background: rgba(59,130,246,0.10);  color: #3b82f6; }
.tip-violet { background: rgba(99,102,241,0.10);  color: #6366f1; }

.dl-tip-item h4 {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.dl-tip-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* ---- Linux terminal preview ---- */
.terminal-block {
    background: #0f0f13;
    border-radius: var(--radius-md);
    padding: 24px 28px;
    margin: 20px 0;
    font-family: 'JetBrains Mono', 'Fira Code', 'Menlo', monospace;
    font-size: 13px;
    line-height: 1.8;
    overflow-x: auto;
}

.terminal-block .t-prompt { color: #6366f1; user-select: none; }
.terminal-block .t-cmd    { color: #e2e8f0; }
.terminal-block .t-comment { color: #4b5563; }
.terminal-block .t-output { color: #9ca3af; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
    .dl-featured-card {
        grid-template-columns: auto 1fr;
        grid-template-rows: auto auto;
    }
    .dl-featured-actions {
        grid-column: 1 / -1;
        flex-direction: row;
        flex-wrap: wrap;
        min-width: unset;
    }
    .dl-featured-actions .dl-btn-main { flex: none; }
    .dl-featured-actions .dl-btn-meta { flex: 1; }

    .dl-tips { grid-template-columns: 1fr; gap: 28px; padding: 36px 28px; }
}

@media (max-width: 768px) {
    .dl-hero { padding-top: 120px; padding-bottom: 44px; }
    .dl-hero h1 { letter-spacing: -1.5px; }
    .dl-featured-card { padding: 20px 18px; gap: 14px; }
    .dl-featured-icon { width: 52px; height: 52px; font-size: 24px; }
    .dl-featured-title { font-size: 18px; }
    .dl-featured-actions { flex-direction: column; }
    .dl-btn-main { width: 100%; min-height: 48px; font-size: 15px; }
    .dl-btn-meta { width: 100%; }
    .dl-btn-ghost {
        flex: 1;
        min-height: 44px;
        -webkit-tap-highlight-color: transparent;
    }
    .dl-btn-ghost:active { background: var(--bg-body); color: var(--text-primary); }
    .dl-btn-main:active  { filter: brightness(0.94); }
    .dl-alt-grid { grid-template-columns: 1fr; }
    .dl-alt-card:active { transform: none; box-shadow: var(--shadow-sm); }

    
    .dl-alt-link {
        min-height: 40px;
        padding: 6px 0;
        display: inline-flex;
        align-items: center;
    }

    
    .platform-tabs-wrap {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 14px;
        
        background:
            linear-gradient(to right, var(--bg-body) 0%, transparent 24px) left,
            linear-gradient(to left,  var(--bg-body) 0%, transparent 24px) right;
        background-repeat: no-repeat;
        background-size: 40px 100%;
        background-attachment: local;
    }
    .platform-tabs { flex-wrap: nowrap; min-width: max-content; gap: 6px; }
    .ptab {
        padding: 10px 16px;
        font-size: 13px;
        white-space: nowrap;
        min-height: 44px;
        -webkit-tap-highlight-color: transparent;
    }
    .ptab:active { opacity: 0.7; }

    
    .dl-variants { gap: 10px; }
    .dl-variant-btn {
        min-height: 44px;
        padding: 10px 18px;
        font-size: 14px;
        -webkit-tap-highlight-color: transparent;
    }
    .dl-variant-btn:active { background: var(--bg-surface); color: var(--brand-from); }

    .dl-tips { padding: 28px 18px; }
    .dl-tips h4 { font-size: 15px; }

    
    .terminal-block { font-size: 12.5px; padding: 18px; }
}

@media (max-width: 480px) {
    .dl-featured-card { grid-template-columns: 1fr; gap: 12px; }
    .dl-featured-icon { display: none; }
    .dl-featured-desc { font-size: 13.5px; }
    .dl-featured-top  { flex-wrap: wrap; gap: 8px; }
    .dl-alt-card      { padding: 16px; }
    .dl-alt-icon      { width: 40px; height: 40px; font-size: 18px; }
    .terminal-block   { padding: 16px 14px; font-size: 12px; }

    
    .dl-variants { flex-direction: column; }
    .dl-variant-btn { width: 100%; justify-content: center; }
}