/* ════════════════════════════════════════════════════
   SCMDG — Servicios Creativos
   Brand Stylesheet — Dark/Light
   ════════════════════════════════════════════════════ */

/* ── Tokens ── */
:root {
  --bg: #0a0a0a;
  --bg-elevated: #111111;
  --fg: #fafafa;
  --fg-secondary: rgba(250, 250, 250, 0.65);
  --fg-muted: rgba(250, 250, 250, 0.4);
  --accent: #3080ff;
  --accent-light: #90c5ff;
  --accent-glow: rgba(48, 128, 255, 0.15);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.15);
  --surface: rgba(255, 255, 255, 0.03);
  --surface-hover: rgba(255, 255, 255, 0.06);

  --mono: 'IBM Plex Mono', ui-monospace, 'Cascadia Code', monospace;
  --serif: 'Instrument Serif', 'Georgia', serif;

  --nav-height: 3.5rem;
  --page-max: 1200px;
  --page-px: 2rem;
}

[data-theme="light"] {
  --bg: #f5f5f0;
  --bg-elevated: #ffffff;
  --fg: #0a0a0a;
  --fg-secondary: rgba(10, 10, 10, 0.6);
  --fg-muted: rgba(10, 10, 10, 0.35);
  --accent: #2060d0;
  --accent-light: #1a4ea8;
  --accent-glow: rgba(32, 96, 208, 0.1);
  --border: rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.15);
  --surface: rgba(0, 0, 0, 0.02);
  --surface-hover: rgba(0, 0, 0, 0.05);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--mono);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s, color 0.3s;
}

::selection { background: var(--accent); color: #fff; }

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); }

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

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-height);
  padding: 0 max(var(--page-px), env(safe-area-inset-left, 0px));
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  display: flex;
  align-items: center;
  height: 1.5rem;
}

.nav-logo img {
  height: 1.25rem;
  width: auto;
}

/* Show correct logo per theme */
.nav-logo .logo-light { display: none; }
.nav-logo .logo-dark { display: block; }
[data-theme="light"] .nav-logo .logo-light { display: block; }
[data-theme="light"] .nav-logo .logo-dark { display: none; }

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-links a {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-secondary);
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active { color: var(--accent); }

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--fg-secondary);
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.85rem;
  transition: border-color 0.2s, color 0.2s;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Mobile menu */
.nav-burger {
  display: none;
  background: none;
  border: none;
  color: var(--fg);
  font-size: 1.2rem;
  cursor: pointer;
}

.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0; right: 0; bottom: 0;
  background: var(--bg);
  z-index: 99;
  padding: 2rem var(--page-px);
  flex-direction: column;
  gap: 0.25rem;
}

.nav-mobile.open { display: flex; }

.nav-mobile a {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-secondary);
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}

.nav-mobile a:hover { color: var(--accent); }

/* ── Layout ── */
.page {
  max-width: var(--page-max);
  margin: 0 auto;
  padding-left: var(--page-px) !important;
  padding-right: var(--page-px) !important;
}

.spacer-nav { height: var(--nav-height); }

/* ── Section Headers ── */
.section-header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 4rem;
}

.section-number {
  font-size: 0.6rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.section-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
  letter-spacing: -0.02em;
}

.section-line {
  flex: 1;
  height: 1px;
  background: var(--border);
  margin-left: 1rem;
}

/* ── Hero ── */
.hero {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 4rem;
  padding-bottom: 4rem;
}

.hero-label {
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-family: var(--serif);
  font-size: clamp(2.8rem, 7.5vw, 6rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
}

.hero h1 em {
  font-style: italic;
  color: var(--accent-light);
}

[data-theme="light"] .hero h1 em { color: var(--accent); }

.hero-description {
  font-size: 0.82rem;
  color: var(--fg-secondary);
  max-width: 560px;
  line-height: 1.85;
  margin-bottom: 3rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.9rem 2rem;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-block;
  text-align: center;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
}

.btn-primary:hover { background: var(--accent-light); border-color: var(--accent-light); }
[data-theme="light"] .btn-primary:hover { background: #1a4ea8; border-color: #1a4ea8; }

.btn-ghost {
  background: transparent;
  color: var(--fg-secondary);
  border: 1px solid var(--border-strong);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero-stats {
  display: flex;
  gap: 3rem;
  padding-top: 3rem;
  margin-top: 3rem;
  border-top: 1px solid var(--border);
}

.stat-number {
  font-family: var(--serif);
  font-size: 2.5rem;
  line-height: 1;
}

.stat-label {
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-top: 0.5rem;
}

/* ── Project Cards ── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.project-card {
  background: var(--bg);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: background 0.3s;
}

.project-card:hover { background: var(--surface-hover); }
.project-card:hover .project-arrow { transform: translate(3px, -3px); color: var(--accent); }

.project-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.project-tag {
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--accent-glow);
  background: var(--accent-glow);
}

.project-arrow {
  font-size: 1.1rem;
  color: var(--fg-muted);
  transition: all 0.2s;
}

.project-name {
  font-family: var(--serif);
  font-size: 1.7rem;
  font-weight: 400;
  line-height: 1.2;
}

.project-description {
  font-size: 0.72rem;
  color: var(--fg-secondary);
  line-height: 1.75;
  flex: 1;
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.project-stack span {
  font-size: 0.58rem;
  color: var(--fg-muted);
  letter-spacing: 0.05em;
}

/* ── Capabilities ── */
.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.capability {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

.capability-number {
  font-size: 0.58rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.capability h3 {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 400;
  margin-bottom: 0.75rem;
}

.capability p {
  font-size: 0.72rem;
  color: var(--fg-secondary);
  line-height: 1.75;
}

/* ── Stack Pills ── */
.stack-section { padding: 3rem 0; }

.stack-label {
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 0.75rem;
}

.stack-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.stack-pill {
  font-size: 0.68rem;
  color: var(--fg-secondary);
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--border);
  transition: all 0.2s;
}

.stack-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

/* ── Detail Page (proyecto individual) ── */
.detail-hero {
  padding: 6rem 0 4rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4rem;
}

.detail-breadcrumb {
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 2rem;
}

.detail-breadcrumb a {
  color: var(--fg-muted);
  transition: color 0.2s;
}

.detail-breadcrumb a:hover { color: var(--accent); }
.detail-breadcrumb span { color: var(--accent); }

.detail-tag {
  display: inline-block;
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--accent-glow);
  background: var(--accent-glow);
  margin-bottom: 1.5rem;
}

.detail-hero h1 {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.detail-intro {
  font-size: 0.85rem;
  color: var(--fg-secondary);
  max-width: 640px;
  line-height: 1.85;
}

.detail-meta {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 2rem;
  padding: 2.5rem 0;
  margin: 3rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.meta-item-label {
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 0.4rem;
}

.meta-item-value {
  font-size: 0.78rem;
  color: var(--fg);
}

.detail-section {
  margin-bottom: 4rem;
}

.detail-section h2 {
  font-family: var(--serif);
  font-size: 1.8rem;
  font-weight: 400;
  margin-bottom: 1.5rem;
}

.detail-section p,
.detail-section li {
  font-size: 0.78rem;
  color: var(--fg-secondary);
  line-height: 1.85;
}

.detail-section ul {
  list-style: none;
  padding: 0;
}

.detail-section li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  border-bottom: 1px solid var(--border);
}

.detail-section li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.detail-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

/* ── About Page ── */
.about-intro {
  font-family: var(--serif);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 400;
  line-height: 1.5;
  max-width: 800px;
  margin-bottom: 4rem;
  letter-spacing: -0.01em;
}

.about-intro em {
  font-style: italic;
  color: var(--accent);
}

[data-theme="light"] .about-intro em { color: var(--accent); }

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-bottom: 4rem;
}

.value-card {
  background: var(--bg);
  padding: 2.5rem;
}

.value-card h3 {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 400;
  margin-bottom: 0.75rem;
}

.value-card p {
  font-size: 0.72rem;
  color: var(--fg-secondary);
  line-height: 1.75;
}

/* ── Contact Page ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 3rem;
}

.contact-block {
  padding: 2rem 0;
}

.contact-block h3 {
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 1rem;
}

.contact-block p,
.contact-block a {
  font-size: 0.82rem;
  color: var(--fg-secondary);
  line-height: 1.85;
}

.contact-block a {
  display: block;
  transition: color 0.2s;
}

.contact-block a:hover { color: var(--accent); }

.contact-email {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 400;
  color: var(--fg);
  transition: color 0.2s;
  display: inline-block;
  margin: 2rem 0;
  word-break: break-all;
}

.contact-email:hover { color: var(--accent); }

/* ── Footer ── */
.footer {
  padding: 2rem var(--page-px);
  border-top: 1px solid var(--border);
  max-width: var(--page-max);
  margin: 6rem auto 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer span {
  font-size: 0.62rem;
  color: var(--fg-muted);
  letter-spacing: 0.05em;
}

.footer a {
  color: var(--fg-muted);
  transition: color 0.2s;
}

.footer a:hover { color: var(--accent); }

/* ── CTA Banner ── */
.cta-banner {
  text-align: center;
  padding: 6rem 0;
  margin-top: 4rem;
}

.cta-banner h2 {
  font-family: var(--serif);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 400;
  margin-bottom: 1.25rem;
}

.cta-banner h2 em {
  font-style: italic;
  color: var(--accent);
}

.cta-banner p {
  font-size: 0.78rem;
  color: var(--fg-secondary);
  max-width: 500px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
}

/* ── Prose ── */
.prose { max-width: 680px; }
.prose p { font-size: 0.78rem; color: var(--fg-secondary); line-height: 1.85; margin-bottom: 1.25rem; }
.prose h3 { font-family: var(--serif); font-size: 1.4rem; font-weight: 400; margin: 2.5rem 0 1rem; }

/* ── Reveal Animation ── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive: Tablet ── */
@media (max-width: 1024px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .detail-columns { gap: 2rem; }
}

/* ── Responsive: Tablet ── */
@media (max-width: 768px) {
  :root { --page-px: 1.75rem; }
}

/* ── Responsive: Mobile ── */
@media (max-width: 640px) {
  :root { --page-px: 1.5rem; }

  .nav-links { display: none; }
  .nav-burger { display: block; }

  .hero h1 { font-size: clamp(2rem, 10vw, 3.5rem); }
  .hero-stats { flex-wrap: wrap; gap: 2rem; }
  .stat-number { font-size: 2rem; }

  .projects-grid { grid-template-columns: 1fr; }
  .capabilities-grid { grid-template-columns: 1fr; }
  .detail-columns { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .values-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 0.75rem; text-align: center; }

  .contact-email { font-size: clamp(1.2rem, 5vw, 1.8rem); }

  .detail-hero { padding: 4rem 0 3rem; margin-bottom: 3rem; }
  .detail-hero h1 { font-size: clamp(2rem, 8vw, 3rem); }
  .detail-meta { grid-template-columns: 1fr 1fr; gap: 1.5rem; }

  .section-title { font-size: clamp(1.6rem, 6vw, 2.5rem); }

  .project-card { padding: 1.75rem; }
  .project-name { font-size: 1.4rem; }

  .cta-banner { padding: 4rem 0; }
  .cta-banner h2 { font-size: clamp(1.6rem, 6vw, 2.5rem); }
}