/* ============================================================
   Blog Álex De Anta — Neural Cyan
   Rajdhani (titulares/marca) + Manrope (cuerpo)
   ============================================================ */

:root {
    --bg: #05070d;
    --bg-2: #0a0f1a;
    --panel: rgba(15, 22, 38, 0.72);
    --panel-border: rgba(21, 217, 255, 0.18);
    --ink: #e7eefc;
    --ink-soft: #a9b7d0;
    --ink-dim: #6d7c98;
    --cyan: #15d9ff;
    --teal: #00f0b5;
    --violet: #7b6cff;
    --glow: 0 0 24px rgba(21, 217, 255, 0.35);
    --radius: 16px;
    --maxw: 1160px;
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
}

body.theme-hitech {
    --bg: #060816;
    --bg-2: #0d1024;
    --panel: rgba(18, 22, 48, 0.74);
    --panel-border: rgba(56, 189, 248, 0.22);
    --ink: #eef4ff;
    --ink-soft: #b8c5e1;
    --ink-dim: #7b88a8;
    --cyan: #38bdf8;
    --teal: #f472b6;
    --violet: #a855f7;
    --glow: 0 0 28px rgba(168, 85, 247, 0.34);
}

body.theme-classic {
    --bg: #f7f1e3;
    --bg-2: #efe4cf;
    --panel: rgba(255, 250, 239, 0.86);
    --panel-border: rgba(111, 78, 55, 0.18);
    --ink: #1d1b18;
    --ink-soft: #514940;
    --ink-dim: #7a6d61;
    --cyan: #b7791f;
    --teal: #6f4e37;
    --violet: #8b5e34;
    --glow: 0 0 24px rgba(183, 121, 31, 0.24);
    --shadow: 0 18px 45px rgba(68, 46, 24, 0.16);
}

body.theme-minimal {
    --bg: #f8fafc;
    --bg-2: #eaf0f8;
    --panel: rgba(255, 255, 255, 0.88);
    --panel-border: rgba(37, 99, 235, 0.16);
    --ink: #0f172a;
    --ink-soft: #475569;
    --ink-dim: #64748b;
    --cyan: #2563eb;
    --teal: #14b8a6;
    --violet: #6366f1;
    --glow: 0 0 22px rgba(37, 99, 235, 0.20);
    --shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
}

body.theme-noir {
    --bg: #080706;
    --bg-2: #17110d;
    --panel: rgba(24, 19, 15, 0.78);
    --panel-border: rgba(245, 215, 161, 0.20);
    --ink: #f8efe0;
    --ink-soft: #d9c6aa;
    --ink-dim: #9a8267;
    --cyan: #f5d7a1;
    --teal: #c47c48;
    --violet: #a65f3a;
    --glow: 0 0 26px rgba(245, 215, 161, 0.24);
}

body.theme-calm {
    --bg: #f4f1e8;
    --bg-2: #e7deca;
    --panel: rgba(255, 252, 244, 0.86);
    --panel-border: rgba(102, 143, 106, 0.20);
    --ink: #203229;
    --ink-soft: #4b5f52;
    --ink-dim: #728071;
    --cyan: #668f6a;
    --teal: #c18f59;
    --violet: #8e735b;
    --glow: 0 0 24px rgba(102, 143, 106, 0.22);
    --shadow: 0 18px 45px rgba(50, 62, 47, 0.13);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Canvas de fondo neural */
#neural-bg {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    display: block;
}
body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(1100px 600px at 80% -10%, rgba(21, 217, 255, 0.10), transparent 60%),
        radial-gradient(900px 500px at 0% 110%, rgba(123, 108, 255, 0.10), transparent 60%),
        linear-gradient(180deg, rgba(5, 7, 13, 0.4), rgba(5, 7, 13, 0.86));
}
body.theme-classic::after,
body.theme-minimal::after,
body.theme-calm::after {
    background:
        radial-gradient(1100px 600px at 80% -10%, color-mix(in srgb, var(--cyan) 12%, transparent), transparent 60%),
        radial-gradient(900px 500px at 0% 110%, color-mix(in srgb, var(--teal) 12%, transparent), transparent 60%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.70));
}

h1, h2, h3, .brand, .btn, .eyebrow, nav a {
    font-family: "Rajdhani", "Manrope", sans-serif;
    letter-spacing: 0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); line-height: 1.05; margin: 0 0 .5em; font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; margin: 0 0 .6em; }
h3 { font-size: 1.25rem; font-weight: 600; margin: 0 0 .4em; }
p { margin: 0 0 1em; color: var(--ink-soft); }

a { color: var(--cyan); text-decoration: none; transition: color .2s; }
a:hover { color: var(--teal); }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.eyebrow {
    display: inline-block;
    font-size: .82rem;
    text-transform: uppercase;
    letter-spacing: .22em;
    color: var(--cyan);
    margin-bottom: .8rem;
    font-weight: 600;
}

/* ---------- Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(14px);
    background: rgba(5, 7, 13, 0.65);
    border-bottom: 1px solid var(--panel-border);
}
.site-header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}
.brand {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--ink);
    display: flex;
    align-items: center;
    gap: .55rem;
}
.brand .dot {
    width: 12px; height: 12px; border-radius: 50%;
    background: var(--cyan);
    box-shadow: var(--glow);
}
nav.main-nav { display: flex; gap: 1.6rem; align-items: center; }
nav.main-nav a { color: var(--ink-soft); font-size: 1.02rem; font-weight: 600; }
nav.main-nav a:hover { color: var(--cyan); }

/* ---------- Botones ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .8rem 1.5rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 1.02rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: transform .15s, box-shadow .2s, background .2s;
}
.btn-primary {
    background: linear-gradient(135deg, var(--cyan), var(--teal));
    color: #04121a;
    box-shadow: var(--glow);
}
.btn-primary:hover { transform: translateY(-2px); color: #04121a; }
.btn-ghost {
    background: transparent;
    border-color: var(--panel-border);
    color: var(--ink);
}
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); }

/* ---------- Hero ---------- */
.hero { padding: clamp(3.5rem, 9vw, 7rem) 0 clamp(2.5rem, 6vw, 4.5rem); }
.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    gap: 3rem;
    align-items: center;
}
.hero p.lead { font-size: 1.2rem; color: var(--ink-soft); max-width: 40ch; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 1.6rem; }
.hero-visual {
    aspect-ratio: 4 / 3;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--panel-border);
    box-shadow: var(--shadow);
    background: var(--bg-2);
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; display: block; }
.hero-terminal {
    width: 100%;
    height: 100%;
    padding: 1rem;
    background:
        radial-gradient(320px 220px at 78% 18%, color-mix(in srgb, var(--cyan) 14%, transparent), transparent 68%),
        linear-gradient(145deg, color-mix(in srgb, var(--panel) 88%, var(--bg)), var(--bg-2));
}
.terminal-bar {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .75rem .9rem;
    border: 1px solid var(--panel-border);
    border-bottom: 0;
    border-radius: calc(var(--radius) - 4px) calc(var(--radius) - 4px) 0 0;
    background: color-mix(in srgb, var(--bg) 72%, transparent);
}
.terminal-dots {
    display: inline-flex;
    gap: .35rem;
}
.terminal-dots i {
    width: .58rem;
    height: .58rem;
    border-radius: 50%;
    background: var(--ink-dim);
}
.terminal-dots i:nth-child(1) { background: var(--violet); }
.terminal-dots i:nth-child(2) { background: var(--teal); }
.terminal-dots i:nth-child(3) { background: var(--cyan); box-shadow: var(--glow); }
.terminal-title {
    color: var(--ink-soft);
    font-family: "Rajdhani", "Manrope", sans-serif;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    font-size: .8rem;
}
.terminal-screen {
    height: calc(100% - 3rem);
    padding: 1.1rem;
    border: 1px solid var(--panel-border);
    border-radius: 0 0 calc(var(--radius) - 4px) calc(var(--radius) - 4px);
    background: color-mix(in srgb, var(--bg) 84%, transparent);
    box-shadow: inset 0 0 28px color-mix(in srgb, var(--cyan) 8%, transparent);
    font-family: "Rajdhani", "Manrope", sans-serif;
    font-size: clamp(1rem, 2.4vw, 1.28rem);
    line-height: 1.65;
    cursor: text;
    caret-color: transparent;
    user-select: none;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: none;
}
.terminal-screen:focus { outline: none; }
.terminal-screen::-webkit-scrollbar { display: none; }
.terminal-screen p {
    margin: 0 0 .32rem;
    color: var(--ink-soft);
    white-space: nowrap;
    min-height: 1.45em;
}
.terminal-input-line { color: var(--ink); }
.terminal-screen .prompt {
    color: var(--cyan);
    text-shadow: var(--glow);
}
.terminal-cursor {
    display: inline-block;
    width: .55em;
    height: 1.05em;
    margin-left: .12em;
    vertical-align: -.18em;
    border: 1px solid var(--cyan);
    background: transparent;
    box-shadow: none;
    animation: none;
}
.terminal-screen.is-booting .terminal-cursor,
.terminal-screen.is-focused .terminal-cursor {
    background: var(--cyan);
    box-shadow: var(--glow);
    animation: terminal-cursor .9s infinite;
}
.terminal-screen.is-ready .terminal-cursor {
    background: transparent;
    box-shadow: none;
    opacity: .82;
}
@keyframes terminal-cursor {
    0%, 45% { opacity: 1; }
    50% { opacity: 0; }
    100% { opacity: 0; }
}

/* ---------- Secciones ---------- */
section { padding: clamp(2.5rem, 6vw, 4.5rem) 0; }
.section-head { margin-bottom: 2rem; }
.section-cta {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

/* ---------- Cards de post ---------- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}
.card {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform .2s, border-color .2s, box-shadow .2s;
}
.card:hover {
    transform: translateY(-4px);
    border-color: rgba(21, 217, 255, 0.5);
    box-shadow: var(--shadow);
}
.card .cover {
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, rgba(21,217,255,.12), rgba(123,108,255,.12));
    overflow: hidden;
}
.card .cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.card .body { padding: 1.2rem 1.3rem 1.4rem; display: flex; flex-direction: column; gap: .5rem; flex: 1; }
.card .tag {
    align-self: flex-start;
    font-size: .72rem;
    text-transform: uppercase;
    letter-spacing: .14em;
    color: var(--teal);
    font-weight: 700;
}
.card h3 { margin: 0; }
.card h3 a { color: var(--ink); }
.card h3 a:hover { color: var(--cyan); }
.card .excerpt { color: var(--ink-dim); font-size: .95rem; flex: 1; }
.card .meta { font-size: .82rem; color: var(--ink-dim); margin-top: .4rem; }

.featured-flag {
    position: absolute; top: 12px; left: 12px;
    background: rgba(0, 240, 181, 0.16);
    color: var(--teal);
    border: 1px solid rgba(0,240,181,.4);
    padding: .2rem .6rem; border-radius: 999px;
    font-size: .7rem; text-transform: uppercase; letter-spacing: .12em; font-weight: 700;
}
.card { position: relative; }

/* ---------- Libros ---------- */
.books { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.book {
    display: grid;
    grid-template-columns: 96px 1fr;
    gap: 1.1rem;
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius);
    padding: 1.3rem;
}
.book .book-cover {
    width: 96px; height: 140px; border-radius: 8px;
    background: linear-gradient(160deg, var(--violet), var(--cyan));
    display: flex; align-items: center; justify-content: center;
    color: #04121a; font-family: "Rajdhani"; font-weight: 700; text-align: center; padding: .4rem;
    overflow: hidden;
}
.book .book-cover img { width: 100%; height: 100%; object-fit: cover; border-radius: 8px; }
.book h3 { margin-bottom: .3rem; }

/* ---------- Redes ---------- */
.socials { display: flex; flex-wrap: wrap; gap: .8rem; }
.social-chip {
    display: inline-flex; align-items: center; gap: .5rem;
    padding: .6rem 1.1rem; border-radius: 999px;
    background: var(--panel); border: 1px solid var(--panel-border);
    color: var(--ink); font-weight: 600; font-size: .95rem;
}
.social-chip:hover { border-color: var(--cyan); color: var(--cyan); }

/* ---------- Fase 2 ---------- */
.phase2 {
    background: var(--panel);
    border: 1px dashed var(--panel-border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
}

/* ---------- Artículo ---------- */
.article { max-width: 760px; margin: 0 auto; padding: clamp(2rem,6vw,4rem) 0; }
.article .cover { border-radius: var(--radius); overflow: hidden; margin: 1.5rem 0; border: 1px solid var(--panel-border); }
.article .cover img { width: 100%; display: block; }
.article-body { font-size: 1.08rem; }
.article-body p { color: var(--ink); }
.article-body h2, .article-body h3 { color: var(--ink); margin-top: 1.6em; }
.article-body img { max-width: 100%; border-radius: 12px; margin: 1.2rem 0; }
.article-body a { text-decoration: underline; }
.article-body blockquote {
    border-left: 3px solid var(--cyan);
    margin: 1.2rem 0; padding: .4rem 1.2rem; color: var(--ink-soft);
    background: rgba(21,217,255,.05);
}
.article-body ul, .article-body ol { color: var(--ink); padding-left: 1.3rem; }

/* ---------- Paginación ---------- */
.pagination { display: flex; gap: .6rem; justify-content: center; margin-top: 2.5rem; }
.pagination a, .pagination span {
    padding: .5rem .9rem; border-radius: 8px;
    border: 1px solid var(--panel-border); color: var(--ink-soft);
}
.pagination a:hover { border-color: var(--cyan); color: var(--cyan); }
.pagination .current { background: var(--cyan); color: #04121a; border-color: var(--cyan); font-weight: 700; }

/* ---------- Footer ---------- */
.site-footer {
    border-top: 1px solid var(--panel-border);
    margin-top: 3rem;
    padding: 2.5rem 0;
    color: var(--ink-dim);
    font-size: .92rem;
}
.site-footer .wrap { display: flex; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; align-items: center; }
.legal-links { display: flex; gap: 1rem; flex-wrap: wrap; }
.legal-links a { color: var(--ink-dim); }
.legal-links a:hover { color: var(--cyan); }
.legal-page { max-width: 820px; margin: 0 auto; padding: clamp(2rem,6vw,4rem) 0; }
.legal-page h1 { margin-bottom: 1.4rem; }
.legal-page h2 { margin-top: 1.8rem; color: var(--ink); }
.legal-page p, .legal-page li { color: var(--ink-soft); }
.legal-page ul { padding-left: 1.3rem; }
.legal-updated { margin-top: 2rem; font-size: .92rem; color: var(--ink-dim); }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
    .hero-grid { grid-template-columns: 1fr; }
    .hero-visual {
        order: -1;
        width: calc(100% - 48px);
        margin: 0 auto;
    }
    nav.main-nav { gap: 1rem; }
    nav.main-nav a { font-size: .95rem; }
}
@media (max-width: 560px) {
    .brand { font-size: 1.2rem; }
    nav.main-nav .nav-extra { display: none; }
    .hero { padding-top: 2rem; }
    .hero-visual {
        width: 100%;
        min-height: 270px;
    }
    .hero-terminal { padding: 1.15rem; }
    .terminal-bar { padding: .7rem .8rem; }
    .terminal-screen {
        height: calc(100% - 3.25rem);
        padding: 1.15rem .95rem;
        font-size: clamp(.84rem, 3.55vw, .96rem);
        line-height: 1.72;
    }
    .terminal-screen p { white-space: normal; }
}