/* ============================================================
   Indie Algorithm – Global Theme
   ============================================================ */

:root {
    --bg: #0e1014;
    --bg-elevated: #12151c;
    --card: #171a21;
    --border: #232834;

    --text: #e6e6eb;
    --muted: #9aa0a6;
    --accent: #5c7cfa;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;

    --shadow-sm: 0 2px 6px rgba(0,0,0,0.25);
    --shadow-md: 0 6px 20px rgba(0,0,0,0.35);
}

/* ============================================================
   Reset & Base
   ============================================================ */

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
}

/* ============================================================
   Header / Top Bar
   ============================================================ */

header.top {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1rem;
    align-items: center;

    padding: 1rem 1.5rem;
    background: linear-gradient(to bottom, #0e1014, #0b0d11);
    border-bottom: 1px solid var(--border);
}

header.top h1 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
}

header.top .actions {
    display: flex;
    gap: 0.6rem;
    align-items: center;
}

/* Search */

#search {
    width: 100%;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.45rem 0.7rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

#search::placeholder {
    color: var(--muted);
}

/* Buttons / Links */

button {
    background: var(--accent);
    border: none;
    color: #fff;
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
}

button:hover {
    opacity: 0.9;
}

a {
    color: var(--accent);
    text-decoration: none;
    font-size: 0.85rem;
}

/* ============================================================
   Layout
   ============================================================ */

main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

section h2 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--muted);
    margin-bottom: 0.8rem;
}

#suggested,
#personal,
#hot {
    display: grid;
    gap: 1rem;
}

/* ============================================================
   Post Cards
   ============================================================ */

.post {
    display: grid;
    grid-template-columns: 140px 1fr;
    background: var(--card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    cursor: pointer;
}

.post.no-image {
    grid-template-columns: 1fr;
}

.post:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Image */

.post img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: #000;
}

/* Content */

.post-content {
    padding: 1rem 1.1rem;
    display: flex;
    flex-direction: column;
}

.post h2 {
    margin: 0 0 0.35rem 0;
    font-size: 1.05rem;
    font-weight: 600;
}

.meta {
    font-size: 0.75rem;
    color: var(--muted);
    margin-bottom: 0.6rem;
}

.summary {
    font-size: 0.88rem;
    color: #d0d0d5;
}

/* ============================================================
   Tags
   ============================================================ */

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.6rem;
}

.tag {
    font-size: 0.65rem;
    padding: 0.15rem 0.45rem;
    border-radius: var(--radius-sm);
    background: #2a2f3a;
    color: var(--muted);
}

/* Language tags */
.tag-lang {
    background: rgba(92, 124, 250, 0.15);
    color: var(--accent);
}

/* Topic tags */
.tag-topic {
    background: #2a2f3a;
}

/* Future: source tags */
.tag-source {
    background: rgba(255, 193, 7, 0.15);
    color: #ffc107;
}


/* ============================================================
   Explainability ("Why am I seeing this?")
   ============================================================ */

.why {
    margin-top: 0.6rem;
    font-size: 0.7rem;
    color: var(--muted);
}

.why-row {
    display: grid;
    grid-template-columns: 90px 1fr 40px;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.why-bar {
    height: 6px;
    background: #2a2f3a;
    border-radius: 4px;
    overflow: hidden;
}

.why-bar > div {
    height: 100%;
    background: var(--accent);
}

/* ============================================================
   Preferences Page
   ============================================================ */

.prefs {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1rem;
    display: grid;
    gap: 2.5rem;
}

.prefs section {
    background: var(--card);
    border-radius: var(--radius-lg);
    padding: 1.4rem;
    box-shadow: var(--shadow-sm);
}

.pref-list {
    display: grid;
    gap: 0.4rem;
    margin-top: 0.8rem;
}

.pref-row {
    display: grid;
    grid-template-columns: 1fr 120px;
    gap: 1rem;
    align-items: center;
}

.pref-bar {
    height: 8px;
    background: #2a2f3a;
    border-radius: 4px;
    overflow: hidden;
}

.pref-bar > div {
    height: 100%;
    background: var(--accent);
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 900px) {

    header.top {
        grid-template-columns: 1fr;
        gap: 0.7rem;
    }

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

    .post {
        grid-template-columns: 1fr;
    }

    .post img {
        height: 180px;
    }
}

.why-toggle.subtle {
    margin-top: 0.4rem;
    background: none;
    border: none;
    color: var(--muted);
    font-size: 0.7rem;
    padding: 0;
    cursor: pointer;
}

.why-toggle.subtle:hover {
    text-decoration: underline;
    color: var(--text);
}

.global-why {
    margin: 0.5rem 1rem;
    font-size: 0.75rem;
    color: var(--muted);
    max-width: 900px;
}

.global-why.hidden {
    display: none;
}