/* ==========================================================
   NOVASTAK LAB — hoja de estilos base
   ========================================================== */

:root {
  /* Paleta de marca (violeta) */
  --primary-50: #F6EDFE;
  --primary-100: #EAD6FD;
  --primary-200: #D6ADFA;
  --primary-300: #BE80F6;
  --primary-400: #A44BEF;
  --primary: #8400E0;
  --primary-600: #7100C0;
  --primary-700: #5C009C;
  --primary-900: #3D0068;

  /* Base / superficies */
  --bg: #FAF9FC;
  --surface: #F1EFF5;
  --border: #E2DFE9;

  /* Texto */
  --text-muted: #A7A2B3;
  --text-2: #6B6577;
  --text: #2E2A38;
  --bg-dark: #16121C;

  /* Acento y estados */
  --accent: #FFB020;
  --success: #12A150;
  --warning: #F5A524;
  --danger: #E5484D;
  --info: #0090FF;

  /* Alias de compatibilidad: referenciados desde estilos inline en los .html.
     No se tocó el HTML; en su lugar estos alias resuelven a los tokens nuevos. */
  --color-primary: var(--primary);
  --color-text-muted: var(--text-2);

  --radius: 12px;
  --max-width: 1160px;
  --font-base: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-base);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header (navbar oscura) ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg-dark) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.5px;
  color: var(--primary-50);
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-600));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #ffffff;
}

.brand-logo {
  display: block;
  height: 44px;
  width: auto;
}

.site-footer .brand-logo {
  height: 22px;
}

.brand-name span {
  color: var(--primary-400);
}

.nav-links {
  display: flex;
  gap: 8px;
}

.nav-links a {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.95rem;
  color: var(--primary-200);
  transition: background 0.2s, color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  background: color-mix(in srgb, var(--primary-400) 18%, transparent);
  color: var(--primary-50);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--primary-50);
  border-radius: 2px;
}

/* ---------- Hero ---------- */

.hero {
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(circle at 15% 20%, color-mix(in srgb, var(--primary) 12%, transparent), transparent 45%),
    radial-gradient(circle at 85% 0%, color-mix(in srgb, var(--primary-300) 14%, transparent), transparent 40%);
}

.hero-inner {
  max-width: 720px;
}

.eyebrow {
  display: inline-block;
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  margin: 0 0 20px;
}

.hero p {
  font-size: 1.05rem;
  color: var(--text-2);
  margin: 0 0 32px;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s, border-color 0.2s;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--primary-600);
}

.btn-primary:active {
  background: var(--primary-700);
}

.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary-600);
}

/* ---------- Sections ---------- */

section {
  padding: 72px 0;
}

.section-header {
  max-width: 620px;
  margin: 0 0 44px;
}

.section-header .eyebrow {
  margin-bottom: 10px;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 0 0 12px;
}

.section-header p {
  color: var(--text-2);
  margin: 0;
}

.section-alt {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* ---------- Cards / Grid ---------- */

.grid {
  display: grid;
  gap: 24px;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--primary-50);
  color: var(--primary-900);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 18px;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: var(--text-2);
  font-size: 0.95rem;
}

/* ---------- Trabajos (portfolio) ---------- */

.work-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s;
}

.work-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
}

.work-thumb {
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, var(--surface), var(--border));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-2);
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border);
}

.work-body {
  padding: 20px 22px;
}

.work-tag {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.work-body h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.work-body p {
  margin: 0;
  color: var(--text-2);
  font-size: 0.9rem;
}

/* ---------- Stats ---------- */

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat strong {
  display: block;
  font-size: 2rem;
  color: var(--primary);
}

.stat span {
  color: var(--text-2);
  font-size: 0.9rem;
}

/* ---------- Timeline (convenios / trayectoria) ---------- */

.timeline {
  border-left: 2px solid var(--border);
  padding-left: 28px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.timeline-item {
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 15%, transparent);
}

.timeline-item h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.timeline-item p {
  margin: 0;
  color: var(--text-2);
  font-size: 0.92rem;
}

/* ---------- Team ---------- */

.team-card {
  text-align: center;
}

.avatar {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-600));
}

.team-card h3 {
  margin: 0 0 4px;
}

.team-card .role {
  color: var(--primary);
  font-size: 0.85rem;
  margin-bottom: 10px;
  display: block;
}

/* ---------- Contact form ---------- */

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.9rem;
  color: var(--text-2);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.contact-info-item {
  display: flex;
  gap: 14px;
  margin-bottom: 22px;
}

.contact-info-item .card-icon {
  flex-shrink: 0;
  margin-bottom: 0;
}

.contact-info-item h4 {
  margin: 0 0 4px;
}

.contact-info-item p {
  margin: 0;
  color: var(--text-2);
  font-size: 0.92rem;
}

/* ---------- Footer (oscuro) ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
  background: var(--bg-dark);
  color: var(--primary-200);
  /* Sobrescribe el alias para que los estilos inline (color:var(--color-text-muted))
     usados en la descripción del footer de cada página resuelvan a un tono claro
     legible sobre fondo oscuro, sin modificar el HTML. */
  --color-text-muted: var(--primary-200);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-grid h4 {
  margin: 0 0 14px;
  font-size: 0.95rem;
  color: var(--primary-50);
}

.footer-grid ul li {
  margin-bottom: 10px;
}

.footer-grid ul li a {
  color: var(--primary-200);
  font-size: 0.9rem;
}

.footer-grid ul li a:hover {
  color: var(--primary-400);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--primary-200);
  font-size: 0.85rem;
}

/* ---------- Page header (páginas internas) ---------- */

.page-header {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--border);
  background: radial-gradient(circle at 20% 0%, color-mix(in srgb, var(--primary) 10%, transparent), transparent 45%);
}

.page-header h1 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
}

.page-header p {
  color: var(--text-2);
  max-width: 620px;
  margin: 0;
}

.breadcrumb {
  color: var(--text-2);
  font-size: 0.85rem;
  margin-bottom: 16px;
}

.breadcrumb a:hover {
  color: var(--primary);
}

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .brand-logo {
    height: 38px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 12px;
    display: none;
  }

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

  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

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

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

  .hero {
    padding: 64px 0 48px;
  }
}