/* ═══════════════════════════════════════════════════
   PORTFOLIO IA APLICADA · José María
   Design system: Dark editorial · Gold accent
═══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,600;0,700;1,400;1,600&family=DM+Mono:wght@400;500&family=Instrument+Sans:wght@300;400;500;600&display=swap');

/* ── TOKENS ── */
:root {
  --bg:           #080810;
  --bg-2:         #0d0d18;
  --bg-3:         #12121e;
  --bg-card:      #0f0f1a;

  --gold:         #c8a04a;
  --gold-lt:      #e4c47a;
  --gold-dim:     #7a6030;
  --gold-ghost:   rgba(200,160,74,0.10);
  --gold-border:  rgba(200,160,74,0.18);
  --gold-border-strong: rgba(200,160,74,0.38);

  --text:         #e8e4dc;
  --text-2:       #a09a90;
  --text-3:       #5a5650;

  --blue:         #3d6fb5;
  --green:        #3daa7a;
  --red:          #b54040;

  --radius:       2px;
  --transition:   0.25s ease;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-mono:    'DM Mono', 'Courier New', monospace;
  --font-body:    'Instrument Sans', system-ui, sans-serif;
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  overflow-x: hidden;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.028;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.1; font-weight: 600; }
h1 { font-size: clamp(2.6rem, 5vw, 4.5rem); }
h2 { font-size: clamp(1.9rem, 3vw, 3rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.05rem; }
p  { color: var(--text-2); }

/* ── CONTAINER ── */
.container { max-width: 1160px; margin: 0 auto; padding: 0 2rem; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase;
  border-radius: var(--radius); border: 1px solid transparent;
  cursor: pointer; transition: all var(--transition); white-space: nowrap;
}
.btn-primary  { background: var(--gold); color: var(--bg); border-color: var(--gold); }
.btn-primary:hover  { background: var(--gold-lt); border-color: var(--gold-lt); transform: translateY(-2px); }
.btn-secondary { background: transparent; color: var(--text); border-color: var(--gold-border-strong); }
.btn-secondary:hover { border-color: var(--gold); color: var(--gold-lt); transform: translateY(-2px); }
.btn-outline   { background: transparent; color: var(--gold); border-color: var(--gold-dim); }
.btn-outline:hover   { border-color: var(--gold); background: var(--gold-ghost); transform: translateY(-2px); }

/* ── HEADER ── */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(8,8,16,0.9); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--gold-border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: 0 4px 40px rgba(0,0,0,0.5); }

.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }

.logo { display: flex; align-items: center; gap: 0.65rem; }
.logo-mark { font-family: var(--font-mono); font-size: 0.8rem; padding: 0.25rem 0.55rem; border: 1px solid var(--gold-border-strong); color: var(--gold); letter-spacing: 0.05em; }
.logo-text  { font-size: 0.85rem; font-weight: 500; color: var(--text-2); }

.main-nav ul { display: flex; gap: 0.2rem; }
.main-nav a {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.09em;
  text-transform: uppercase; color: var(--text-2);
  padding: 0.4rem 0.7rem; border-radius: var(--radius);
  transition: color var(--transition); position: relative;
}
.main-nav a::after {
  content: ''; position: absolute; bottom: -1px;
  left: 0.7rem; right: 0.7rem; height: 1px;
  background: var(--gold); transform: scaleX(0); transition: transform var(--transition);
}
.main-nav a:hover, .main-nav a.active { color: var(--gold-lt); }
.main-nav a.active::after, .main-nav a:hover::after { transform: scaleX(1); }

.menu-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; background: none; border: none; cursor: pointer; padding: 0.5rem; }
.menu-toggle span { display: block; width: 22px; height: 1.5px; background: var(--text-2); transition: all var(--transition); }
.menu-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); background: var(--gold); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); background: var(--gold); }

/* ── HERO ── */
.hero {
  padding: 9rem 0 5rem; border-bottom: 1px solid var(--gold-border);
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(var(--gold-border) 1px, transparent 1px), linear-gradient(90deg, var(--gold-border) 1px, transparent 1px);
  background-size: 64px 64px; opacity: 0.4; pointer-events: none;
}

.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 4rem; align-items: center; position: relative; z-index: 1; }

.eyebrow {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 1.25rem;
  display: flex; align-items: center; gap: 0.75rem;
}
.eyebrow::before { content: ''; display: block; width: 1.5rem; height: 1px; background: var(--gold); }

.hero-copy h1 { margin-bottom: 1.25rem; color: var(--text); }
.hero-copy h1 em { font-style: italic; color: var(--gold); }

.lead { font-size: 1rem; color: var(--text-2); line-height: 1.8; max-width: 520px; margin-bottom: 2.25rem; }

.hero-actions { display: flex; gap: 0.85rem; flex-wrap: wrap; margin-bottom: 2.5rem; }

.hero-metrics { display: flex; gap: 1px; background: var(--gold-border); border: 1px solid var(--gold-border); }
.metric-card { background: var(--bg-card); padding: 1rem 1.5rem; flex: 1; display: flex; flex-direction: column; gap: 0.2rem; }
.metric-card strong { font-family: var(--font-display); font-size: 1.3rem; font-weight: 600; color: var(--gold-lt); display: block; }
.metric-card span { font-size: 0.7rem; color: var(--text-3); font-family: var(--font-mono); letter-spacing: 0.04em; }

/* Glass panel */
.glass-card { background: var(--bg-card); border: 1px solid var(--gold-border); padding: 2rem; position: relative; }
.glass-card::before { content: ''; position: absolute; top: 0; left: 1.5rem; right: 1.5rem; height: 2px; background: linear-gradient(90deg, transparent, var(--gold-dim), transparent); }

.mini-title { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gold-dim); margin-bottom: 1.25rem; }

.tag-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tag { font-family: var(--font-mono); font-size: 0.67rem; padding: 0.3rem 0.65rem; border: 1px solid var(--gold-border); color: var(--text-2); letter-spacing: 0.04em; background: var(--gold-ghost); transition: border-color var(--transition), color var(--transition); }
.tag:hover { border-color: var(--gold); color: var(--gold-lt); }

/* ── SECTIONS ── */
.section { padding: 5.5rem 0; border-bottom: 1px solid var(--gold-border); }
.section-soft { background: var(--bg-2); }

.section-heading { text-align: center; max-width: 640px; margin: 0 auto 3.5rem; }
.section-kicker { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold); margin-bottom: 0.75rem; display: block; }
.section-heading h2 { color: var(--text); margin-bottom: 1rem; }
.section-heading p { font-size: 0.95rem; }

/* ── INFO GRID ── */
.info-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--gold-border); border: 1px solid var(--gold-border); }
.info-card { background: var(--bg-card); padding: 2rem 1.75rem; position: relative; transition: background var(--transition); }
.info-card:hover { background: var(--bg-3); }
.info-card::before { content: ''; position: absolute; top: 0; left: 0; width: 2px; height: 0; background: var(--gold); transition: height 0.4s ease; }
.info-card:hover::before { height: 100%; }
.info-card h3 { font-family: var(--font-display); font-size: 1.15rem; color: var(--text); margin-bottom: 0.75rem; }
.info-card p { font-size: 0.875rem; line-height: 1.75; }

/* ── PROJECTS GRID ── */
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--gold-border); border: 1px solid var(--gold-border); }
.project-card { background: var(--bg-card); padding: 2.25rem 2rem; display: flex; flex-direction: column; position: relative; transition: background var(--transition); overflow: hidden; }
.project-card:hover { background: var(--bg-3); }
.project-card::after { content: '→'; position: absolute; top: 1.75rem; right: 2rem; color: var(--gold-dim); opacity: 0; transition: all var(--transition); }
.project-card:hover::after { opacity: 1; transform: translateX(4px); }

.project-top { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 1rem; flex-wrap: wrap; }
.project-area { font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gold-dim); }
.project-card h3 { font-family: var(--font-display); font-size: 1.2rem; color: var(--text); margin-bottom: 0.75rem; line-height: 1.25; }
.project-text { font-size: 0.875rem; line-height: 1.75; flex: 1; margin-bottom: 1.5rem; }
.project-actions { margin-top: auto; }
.project-meta { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1.25rem; }
.project-meta span { font-family: var(--font-mono); font-size: 0.62rem; padding: 0.2rem 0.55rem; background: var(--gold-ghost); border: 1px solid var(--gold-border); color: var(--gold-dim); }

.project-status { font-family: var(--font-mono); font-size: 0.6rem; padding: 0.2rem 0.55rem; letter-spacing: 0.08em; text-transform: uppercase; }
.status-dev  { background: rgba(200,160,74,0.12); color: var(--gold);  border: 1px solid var(--gold-dim); }
.status-live { background: rgba(61,170,122,0.12); color: var(--green); border: 1px solid rgba(61,170,122,0.3); }
.status-idea { background: rgba(61,111,181,0.12); color: var(--blue);  border: 1px solid rgba(61,111,181,0.3); }

.project-card.compact .project-text { margin-bottom: 0; }
.project-card.compact::after { display: none; }

.project-card.featured::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, transparent, var(--gold), transparent); }

/* ── CTA BOX ── */
.cta-box { display: flex; align-items: center; justify-content: space-between; gap: 3rem; border: 1px solid var(--gold-border); padding: 3rem; background: var(--bg-card); position: relative; }
.cta-box::before { content: ''; position: absolute; top: 0; left: 2rem; right: 2rem; height: 2px; background: linear-gradient(90deg, transparent, var(--gold-dim), transparent); }
.cta-copy .section-kicker { text-align: left; }
.cta-copy h2 { color: var(--text); margin-bottom: 0.85rem; max-width: 480px; }
.cta-copy p  { font-size: 0.9rem; max-width: 480px; }
.cta-actions { display: flex; flex-direction: column; gap: 0.75rem; flex-shrink: 0; }

/* ── FOOTER ── */
.site-footer { border-top: 1px solid var(--gold-border); padding: 2.5rem 0; background: var(--bg-2); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 2rem; }
.footer-brand { font-family: var(--font-display); font-size: 1rem; color: var(--text); margin-bottom: 0.2rem; }
.site-footer p { font-size: 0.78rem; color: var(--text-3); }
.footer-inner > div:last-child p { font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.1em; color: var(--gold-dim); text-align: right; }

/* ── BACK TO TOP ── */
#back-to-top { position: fixed; bottom: 2rem; right: 2rem; width: 40px; height: 40px; background: var(--bg-card); border: 1px solid var(--gold-border); color: var(--gold); font-size: 1rem; cursor: pointer; display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: all var(--transition); z-index: 50; }
#back-to-top.visible { opacity: 1; pointer-events: auto; }
#back-to-top:hover { background: var(--gold-ghost); border-color: var(--gold); }

/* ── SCROLL REVEAL ── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── SOBRE MÍ: PILLAR CARDS ── */
.pillar-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.pillar-card { border: 1px solid var(--gold-border); padding: 2rem 1.75rem; background: var(--bg-card); position: relative; transition: background var(--transition); }
.pillar-card:hover { background: var(--bg-3); }
.pillar-card::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, transparent, var(--gold-dim), transparent); transform: scaleX(0); transition: transform 0.4s ease; }
.pillar-card:hover::after { transform: scaleX(1); }
.pillar-icon { font-size: 2rem; display: block; margin-bottom: 1.25rem; }
.pillar-card h3 { font-family: var(--font-display); font-size: 1.2rem; color: var(--text); margin-bottom: 0.65rem; }
.pillar-card p { font-size: 0.875rem; line-height: 1.75; }

/* ── SOBRE MÍ: MANIFESTO ── */
.manifesto { border-left: 2px solid var(--gold-dim); padding: 2rem 2.5rem; background: var(--bg-card); }
.manifesto-text { font-family: var(--font-display); font-size: clamp(1.2rem, 2vw, 1.55rem); font-style: italic; color: var(--text); line-height: 1.55; }
.manifesto-author { margin-top: 1.25rem; font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.15em; color: var(--gold-dim); text-transform: uppercase; }

/* ── SOBRE MÍ: VALUES ── */
.values-list { display: flex; flex-direction: column; gap: 0; border: 1px solid var(--gold-border); }
.value-item { display: grid; grid-template-columns: 2.5rem 1fr; gap: 1.25rem; align-items: start; padding: 1.5rem 2rem; border-bottom: 1px solid var(--gold-border); background: var(--bg-card); transition: background var(--transition); }
.value-item:last-child { border-bottom: none; }
.value-item:hover { background: var(--bg-3); }
.value-num { font-family: var(--font-mono); font-size: 0.68rem; color: var(--gold-dim); padding-top: 0.2rem; }
.value-item h4 { color: var(--text); margin-bottom: 0.35rem; }
.value-item p { font-size: 0.87rem; }

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-panel { display: none; }
  .info-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: 1fr; }
  .pillar-grid { grid-template-columns: 1fr; }
  .cta-box { flex-direction: column; }
  .cta-actions { flex-direction: row; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-inner > div:last-child p { text-align: center; }
}

@media (max-width: 700px) {
  .main-nav { display: none; position: fixed; top: 64px; left: 0; right: 0; background: rgba(8,8,16,0.97); border-bottom: 1px solid var(--gold-border); padding: 1.5rem 2rem; }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 0; }
  .main-nav a { display: block; padding: 0.75rem 0; border-bottom: 1px solid var(--gold-border); }
  .main-nav a::after { display: none; }
  .menu-toggle { display: flex; }
  .hero { padding: 7rem 0 4rem; }
  .hero-metrics { flex-direction: column; }
  .info-grid { grid-template-columns: 1fr; }
  .section { padding: 3.5rem 0; }
}