/* ══════════════════════════════════════════
   ARNOLDO ALONSO · BRASIDAS STRATEGIES
   Global Stylesheet — B&W Institutional
   Font: Roboto + Roboto Mono
   No images. No logos. Pure typography.
══════════════════════════════════════════ */

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

:root {
  --black:    #000000;
  --white:    #ffffff;
  --g100:     #f5f5f5;
  --g200:     #e5e5e5;
  --g300:     #cccccc;
  --g500:     #888888;
  --g700:     #444444;
  --g900:     #111111;
  --font:     'Roboto', sans-serif;
  --mono:     'Roboto Mono', monospace;
  --bar-h:    52px;
  --nav-h:    44px;
  --offset:   96px; /* bar + nav */
}

html { font-size: 16px; scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--white); color: var(--black); line-height: 1.6; -webkit-font-smoothing: antialiased; }

/* ── Skip link ── */
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--black); color: var(--white); padding: .5rem 1rem; font-size: .85rem; z-index: 9999; }
.skip-link:focus { left: 0; }

/* ══ UTILITY BAR (top black strip) ══ */
.util-bar {
  position: fixed; top: 0; left: 0; right: 0; height: var(--bar-h);
  background: var(--black); display: flex; align-items: center;
  padding: 0 2rem; z-index: 1000; gap: .5rem;
}
.util-brand {
  font-size: .7rem; font-weight: 700; letter-spacing: .18em;
  text-transform: uppercase; color: var(--white);
  text-decoration: none; margin-right: auto;
}
.util-brand:hover { color: var(--g300); }
.util-btn {
  background: transparent; color: var(--white); border: 1px solid #444;
  padding: .22rem .6rem; font-family: var(--font); font-size: .65rem;
  font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  cursor: pointer; transition: background .12s;
}
.util-btn:hover { background: #222; border-color: #777; }
.util-btn.primary { background: var(--white); color: var(--black); border-color: var(--white); }
.util-btn.primary:hover { background: var(--g300); }

/* ══ MAIN NAV ══ */
.main-nav {
  position: fixed; top: var(--bar-h); left: 0; right: 0;
  background: var(--white); border-bottom: 2px solid var(--black);
  display: flex; align-items: center; padding: 0 2rem;
  height: var(--nav-h); z-index: 999; gap: 0;
  overflow-x: auto;
}
.main-nav a {
  font-size: .7rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--g500);
  text-decoration: none; padding: 0 1rem; height: var(--nav-h);
  display: flex; align-items: center;
  border-bottom: 3px solid transparent; margin-bottom: -2px;
  white-space: nowrap; transition: color .1s;
}
.main-nav a:hover { color: var(--black); }
.main-nav a.active { color: var(--black); border-bottom-color: var(--black); }

/* ══ PAGE BODY OFFSET ══ */
.page-body { margin-top: var(--offset); min-height: calc(100vh - var(--offset)); }

/* ══ HERO ══ */
.hero {
  background: var(--black); color: var(--white);
  padding: 4rem 2rem 3.5rem;
}
.hero-inner { max-width: 960px; margin: 0 auto; }
.hero-eye {
  font-size: .65rem; font-weight: 700; letter-spacing: .2em;
  text-transform: uppercase; color: var(--g500); margin-bottom: .6rem;
}
.hero-name {
  font-size: clamp(2.8rem, 8vw, 6rem); font-weight: 900;
  line-height: 1.0; letter-spacing: -.02em; margin-bottom: .5rem;
}
.hero-title-line {
  font-size: clamp(1rem, 2.5vw, 1.4rem); font-weight: 300;
  color: var(--g300); margin-bottom: 1.5rem; line-height: 1.5;
}
.hero-tags { display: flex; flex-wrap: wrap; gap: .5rem; }
.hero-tag {
  border: 1px solid #444; color: var(--g300);
  font-size: .65rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; padding: .25rem .65rem;
}

/* ══ SECTION ══ */
.section { max-width: 960px; margin: 0 auto; padding: 3rem 2rem; }
.section + .section { border-top: 1px solid var(--g200); }
.sec-head {
  font-size: .65rem; font-weight: 700; letter-spacing: .2em;
  text-transform: uppercase; color: var(--black);
  border-bottom: 2px solid var(--black); padding-bottom: .4rem;
  margin-bottom: 1.75rem;
}

/* ══ BIO ══ */
.bio-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; }
.bio-p { font-size: .95rem; color: var(--g700); line-height: 1.75; margin-bottom: .9rem; }
.bio-p strong { color: var(--black); font-weight: 700; }
.bio-p:last-child { margin-bottom: 0; }

/* ══ TAGS ROW ══ */
.tags-row { display: flex; flex-wrap: wrap; gap: .45rem; margin-bottom: 2rem; }
.tag {
  border: 1px solid var(--black); font-size: .65rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase; padding: .25rem .6rem; color: var(--black);
}

/* ══ TIMELINE (resume) ══ */
.timeline { border-left: 2px solid var(--black); padding-left: 1.75rem; }
.tl-item { position: relative; margin-bottom: 2.25rem; }
.tl-item::before {
  content: ''; position: absolute; left: -1.9rem; top: .45rem;
  width: 8px; height: 8px; background: var(--black); border-radius: 50%;
}
.tl-date { font-family: var(--mono); font-size: .7rem; color: var(--g500); margin-bottom: .15rem; }
.tl-role { font-size: 1rem; font-weight: 700; margin-bottom: .1rem; }
.tl-org { font-size: .88rem; color: var(--g700); margin-bottom: .35rem; font-weight: 500; }
.tl-desc { font-size: .88rem; color: var(--g700); line-height: 1.65; }

/* ══ CARD GRID ══ */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px,1fr)); gap: 0; }
.card {
  border: 1px solid var(--g200); padding: 1.5rem; display: block;
  text-decoration: none; color: inherit; margin: -1px 0 0 -1px;
  transition: background .1s;
}
.card:hover { background: var(--g100); }
.card-eye { font-size: .62rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--g500); margin-bottom: .4rem; }
.card-title { font-size: 1.05rem; font-weight: 700; line-height: 1.3; margin-bottom: .4rem; }
.card-desc { font-size: .85rem; color: var(--g700); line-height: 1.55; margin-bottom: .6rem; }
.card-meta { font-family: var(--mono); font-size: .68rem; color: var(--g500); }
.card-badge {
  display: inline-block; background: var(--black); color: var(--white);
  font-size: .58rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; padding: .15rem .45rem; margin-bottom: .5rem;
}
.card-badge.out { background: transparent; color: var(--black); border: 1px solid var(--black); }

/* ══ PUB LIST ══ */
.pub-list { display: flex; flex-direction: column; }
.pub-row {
  display: grid; grid-template-columns: 3rem 1fr auto;
  gap: 0 1.25rem; align-items: start;
  padding: 1.5rem 0; border-bottom: 1px solid var(--g200);
  text-decoration: none; color: inherit; transition: background .1s;
}
.pub-row:first-child { border-top: 1px solid var(--g200); }
.pub-row:hover { background: var(--g100); padding-left: .5rem; padding-right: .5rem; margin: 0 -.5rem; }
.pub-row.dim { opacity: .4; pointer-events: none; }
.pub-num { font-family: var(--mono); font-size: 1.4rem; color: var(--g300); line-height: 1; padding-top: .2rem; text-align: right; }
.pub-type { font-size: .62rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--g500); margin-bottom: .3rem; }
.pub-title { font-size: 1.1rem; font-weight: 700; margin-bottom: .3rem; }
.pub-desc { font-size: .88rem; color: var(--g700); line-height: 1.55; margin-bottom: .4rem; max-width: 540px; }
.pub-meta { font-family: var(--mono); font-size: .68rem; color: var(--g500); }
.pub-tag {
  align-self: start; margin-top: .2rem;
  background: var(--black); color: var(--white);
  font-size: .58rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; padding: .2rem .5rem; white-space: nowrap;
}
.pub-tag.out { background: transparent; color: var(--black); border: 1px solid var(--black); }

/* ══ STORE ITEM ══ */
.store-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); gap: 2rem; }
.store-item { border: 2px solid var(--black); padding: 2rem; }
.store-item-type { font-size: .62rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--g500); margin-bottom: .4rem; }
.store-item-title { font-size: 1.3rem; font-weight: 900; line-height: 1.2; margin-bottom: .5rem; }
.store-item-desc { font-size: .9rem; color: var(--g700); line-height: 1.65; margin-bottom: 1.5rem; }
.store-item-price { font-family: var(--mono); font-size: 1.8rem; font-weight: 700; margin-bottom: 1rem; }
.store-btn {
  display: inline-block; background: var(--black); color: var(--white);
  border: none; padding: .7rem 1.75rem;
  font-family: var(--font); font-size: .75rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase; cursor: pointer;
  text-decoration: none; transition: background .12s;
}
.store-btn:hover { background: var(--g900); }
.store-btn.out {
  background: transparent; color: var(--black); border: 2px solid var(--black);
}
.store-btn.out:hover { background: var(--g100); }

/* ══ BREADCRUMB ══ */
.breadcrumb {
  font-size: .7rem; color: var(--g500); padding: .65rem 2rem;
  border-bottom: 1px solid var(--g200); background: var(--white);
}
.breadcrumb a { color: var(--g500); text-decoration: none; }
.breadcrumb a:hover { color: var(--black); }
.breadcrumb span { margin: 0 .4rem; color: var(--g300); }

/* ══ BLOG ══ */
.blog-list { display: flex; flex-direction: column; gap: 0; }
.blog-row {
  display: grid; grid-template-columns: 120px 1fr;
  gap: 0 1.5rem; padding: 1.5rem 0;
  border-bottom: 1px solid var(--g200);
  text-decoration: none; color: inherit; transition: background .1s;
}
.blog-row:first-child { border-top: 1px solid var(--g200); }
.blog-row:hover { background: var(--g100); padding-left: .5rem; padding-right: .5rem; margin: 0 -.5rem; }
.blog-date { font-family: var(--mono); font-size: .72rem; color: var(--g500); padding-top: .3rem; }
.blog-title { font-size: 1rem; font-weight: 700; margin-bottom: .3rem; }
.blog-excerpt { font-size: .88rem; color: var(--g700); line-height: 1.55; }

/* ══ CONTACT ══ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.contact-label { display: block; font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; margin-bottom: .4rem; }
.contact-input, .contact-ta {
  width: 100%; border: 1px solid var(--black); padding: .65rem .75rem;
  font-family: var(--font); font-size: .9rem; background: var(--white); color: var(--black); outline: none;
}
.contact-input:focus, .contact-ta:focus { box-shadow: 0 0 0 2px rgba(0,0,0,.15); }
.contact-ta { min-height: 130px; resize: vertical; }
.contact-row { margin-bottom: 1.25rem; }
.contact-submit {
  background: var(--black); color: var(--white); border: none;
  padding: .75rem 2rem; font-family: var(--font); font-size: .78rem;
  font-weight: 700; letter-spacing: .1em; text-transform: uppercase; cursor: pointer;
}
.contact-submit:hover { background: var(--g900); }
.contact-info-block { margin-bottom: 1.5rem; }
.contact-info-label { font-size: .65rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--g500); margin-bottom: .3rem; }
.contact-info-value { font-size: 1rem; font-weight: 500; }
.contact-info-value a { color: var(--black); text-decoration: none; border-bottom: 1px solid var(--g300); }
.contact-info-value a:hover { border-color: var(--black); }

/* ══ COMING SOON ══ */
.soon { border: 1px solid var(--g200); padding: 4rem 2rem; text-align: center; }
.soon-eye { font-size: .65rem; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; color: var(--g500); margin-bottom: .75rem; }
.soon-title { font-size: 1.6rem; font-weight: 900; color: var(--black); margin-bottom: .6rem; }
.soon-sub { font-size: .95rem; color: var(--g500); line-height: 1.65; }

/* ══ FOOTER ══ */
.site-footer { background: var(--black); color: var(--g500); padding: 1.5rem 2rem; font-size: .73rem; margin-top: 4rem; }
.footer-in { max-width: 960px; margin: 0 auto; display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem; align-items: center; }
.footer-in a { color: var(--g300); text-decoration: none; }
.footer-in a:hover { color: var(--white); }

/* ══ DARK MODE ══ */
body.dark { background: #0a0a0a; color: var(--white); }
body.dark .main-nav { background: #111; border-bottom-color: #333; }
body.dark .main-nav a { color: #555; }
body.dark .main-nav a:hover, body.dark .main-nav a.active { color: var(--white); }
body.dark .main-nav a.active { border-bottom-color: var(--white); }
body.dark .section + .section { border-color: #222; }
body.dark .bio-p, body.dark .tl-org, body.dark .tl-desc,
body.dark .card-desc, body.dark .pub-desc, body.dark .blog-excerpt,
body.dark .store-item-desc { color: #aaa; }
body.dark .card { border-color: #222; }
body.dark .card:hover, body.dark .pub-row:hover, body.dark .blog-row:hover { background: #111; }
body.dark .pub-row, body.dark .blog-row { border-color: #222; }
body.dark .store-item { border-color: #444; }
body.dark .tag { border-color: #444; color: #ccc; }
body.dark .contact-input, body.dark .contact-ta { background: #111; color: var(--white); border-color: #444; }
body.dark .breadcrumb { background: #0a0a0a; border-color: #222; }
body.dark .soon { border-color: #222; }
body.dark .soon-title { color: var(--white); }

/* ══ RESPONSIVE ══ */
@media (max-width: 680px) {
  :root { --bar-h: 48px; --nav-h: 40px; --offset: 88px; }
  .bio-grid, .contact-grid { grid-template-columns: 1fr; }
  .pub-row, .blog-row { grid-template-columns: 2.5rem 1fr; }
  .pub-tag { grid-column: 2; }
  .blog-date { grid-column: 1 / -1; padding-top: 0; margin-bottom: .25rem; }
  .store-grid { grid-template-columns: 1fr; }
  .util-bar { padding: 0 1rem; }
  .main-nav { padding: 0 .5rem; }
  .main-nav a { padding: 0 .55rem; font-size: .62rem; }
}