/* ==========================================================================
   OOU DIGITAL — variables & reset
   ========================================================================== */
:root {
  --bg: #000000;
  --card-bg: #0b0b0b;
  --card-border: #1c1c1c;
  --field-bg: #151515;
  --accent: #00f0c8;
  --accent-dim: rgba(0, 240, 200, 0.15);
  --text-main: #ffffff;
  --text-secondary: #a3a3a3;
  --radius-lg: 20px;
  --radius-md: 16px;
  --font-heading: 'Exo 2', sans-serif;
  --font-body: 'Inter', sans-serif;
  --header-h: 76px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

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

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

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

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  position: relative;
  padding: 120px 0;
  overflow: hidden;
}

.eyebrow {
  display: inline-block;
  color: var(--accent);
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  font-size: 13px;
  margin-bottom: 16px;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.1;
  margin: 0 0 16px;
}

h2 { font-size: clamp(28px, 4vw, 42px); }
h3 { font-size: 20px; font-weight: 700; }

p { color: var(--text-secondary); margin: 0 0 16px; }

.center { text-align: center; }
.center p { margin-left: auto; margin-right: auto; }

.accent-dot { color: var(--accent); }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}

.btn-accent {
  background: var(--accent);
  color: #000;
}

.btn-accent:hover {
  box-shadow: 0 0 24px var(--accent-dim), 0 0 8px rgba(0, 240, 200, 0.5);
  transform: translateY(-2px);
}

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

.btn-outline:hover {
  background: var(--accent-dim);
  box-shadow: 0 0 20px var(--accent-dim);
  transform: translateY(-2px);
}

.btn-pill { border-radius: 999px; }

.link-accent {
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
  transition: opacity 0.2s ease;
}
.link-accent:hover { opacity: 0.75; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  height: var(--header-h);
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
  max-width: 1180px;
  margin: 0 auto;
  height: 100%;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 800;
  letter-spacing: 2px;
  font-size: 20px;
  color: var(--text-main);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

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

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   Side dot navigation
   ========================================================================== */
.side-nav {
  position: fixed;
  right: 28px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 18px;
  z-index: 150;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid var(--card-border);
  background: transparent;
  transition: background 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.dot.active {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

/* ==========================================================================
   Fade-in on scroll
   ========================================================================== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
}

.draw-line-soft {
  fill: none;
  stroke: var(--accent);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
  opacity: 0.12;
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  animation: draw 2.8s ease forwards 0.2s;
}

@keyframes draw {
  to { stroke-dashoffset: 0; }
}

.bg-lines {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 320px;
  z-index: 0;
  pointer-events: none;
}

.bg-lines svg { width: 100%; height: 100%; }
.bg-lines-left { left: 0; }
.bg-lines-right { right: 0; }

/* ==========================================================================
   Decorative section divider (between Sobre Mí and Redes)
   ========================================================================== */
.section-divider {
  position: relative;
  height: 100px;
  overflow: hidden;
  background: var(--bg);
}

.section-divider svg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  width: 100%;
  height: 100%;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 15%, black 85%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0%, black 15%, black 85%, transparent 100%);
}

.divider-line {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.6;
}

/* Corner accent lines in Redes, faded toward the center */
.redes-lines {
  position: absolute;
  top: 0;
  right: 0;
  width: 25%;
  height: 40%;
  z-index: 0;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(circle at top right, black 30%, transparent 75%);
  mask-image: radial-gradient(circle at top right, black 30%, transparent 75%);
}

.redes-lines svg { display: block; width: 100%; height: 100%; }
.redes-lines .divider-line { opacity: 0.2; }

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 48px;
}

.hero-name {
  font-size: clamp(48px, 7vw, 84px);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 24px;
}

.hero-tagline {
  color: var(--text-main);
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  font-size: 14px;
  margin-bottom: 20px;
}

.hero-lead {
  color: var(--text-main);
  font-size: 19px;
  font-weight: 500;
  max-width: 480px;
}

.hero-sub {
  color: var(--text-secondary);
  font-size: 16px;
  max-width: 480px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-photo { display: flex; justify-content: center; }

.photo-ring {
  width: min(360px, 80vw);
  height: min(360px, 80vw);
  border-radius: 50%;
  border: 1px solid var(--accent);
  box-shadow: 0 0 60px rgba(0, 240, 200, 0.25);
  padding: 14px;
  overflow: hidden;
}

.photo-ring img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  filter: grayscale(1);
}

/* ==========================================================================
   About
   ========================================================================== */
.about-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 64px;
  align-items: start;
}

.about-photo {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
}

.about-photo img {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--accent);
  filter: grayscale(1);
  object-fit: cover;
  object-position: center top;
}

.about-content h2 { max-width: 520px; }

.highlight-quote {
  margin: 28px 0;
  padding-left: 24px;
  border-left: 2px solid var(--accent);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 22px;
  color: var(--text-main);
  font-style: normal;
}

.credentials {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.credential-item {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 14px;
}

.credential-icon {
  width: 18px;
  height: 18px;
  color: var(--accent);
  flex-shrink: 0;
}

.credential-item strong {
  color: var(--text-main);
  font-weight: 700;
}

.credential-school {
  color: var(--text-secondary);
}

/* ==========================================================================
   Networks
   ========================================================================== */
.section-heading { position: relative; z-index: 1; margin-bottom: 56px; }
.section-heading.center { max-width: 620px; margin-left: auto; margin-right: auto; }
.section-sub { font-size: 17px; }

.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.card-featured {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 40px;
  margin-bottom: 28px;
}

.card-featured:hover,
.card-network:hover,
.card-collab:hover,
.card-trajectory:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: 0 12px 32px rgba(0, 240, 200, 0.08);
}

.icon-lg { width: 56px; height: 56px; flex-shrink: 0; color: var(--accent); }

.card-featured-text { flex: 1; }
.card-featured-text h3 { margin-bottom: 6px; }
.card-featured-text p { margin: 0; }

.network-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card-network {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 36px 20px;
  text-align: center;
}

.card-network .icon { width: 32px; height: 32px; color: var(--accent); }
.card-network span { font-weight: 600; }

/* ==========================================================================
   Trajectory
   ========================================================================== */
.trajectory-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.card-trajectory { overflow: hidden; }

.card-trajectory img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(1);
}

.card-trajectory .card-body { padding: 28px; }
.card-trajectory h3 { font-size: 18px; margin-bottom: 12px; }
.card-trajectory p { font-size: 14.5px; }

/* ==========================================================================
   Collaborations
   ========================================================================== */
.collab-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 48px;
}

.card-collab { padding: 40px; }
.icon-outline { width: 40px; height: 40px; color: var(--accent); margin-bottom: 20px; }
.card-collab p { margin: 0; }

.collab-cta {
  position: relative;
  z-index: 1;
  text-align: center;
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-form {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin: 48px auto 0;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 44px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 20px;
}

.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group-full { margin-bottom: 24px; }

.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--field-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 13px 16px;
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-submit { text-align: center; }

.form-status {
  text-align: center;
  margin: 16px 0 0;
  font-size: 14px;
  min-height: 20px;
}

.form-status.success { color: var(--accent); }
.form-status.error { color: #ff6b6b; }

.whatsapp-alt {
  max-width: 860px;
  margin: 28px auto 0;
  text-align: center;
}

.whatsapp-alt p {
  margin-bottom: 16px;
}

.whatsapp-alt .btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.whatsapp-alt .icon {
  width: 20px;
  height: 20px;
}

/* ==========================================================================
   WhatsApp floating button
   ========================================================================== */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 250;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.4);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.whatsapp-float:hover,
.whatsapp-float:focus-visible {
  box-shadow: 0 0 0 4px var(--accent-dim), 0 0 24px rgba(0, 240, 200, 0.6), 0 4px 18px rgba(0, 0, 0, 0.4);
  transform: translateY(-2px);
}

.whatsapp-icon {
  width: 30px;
  height: 30px;
  color: #000000;
}

.whatsapp-tooltip {
  position: absolute;
  right: calc(100% + 14px);
  top: 50%;
  transform: translateY(-50%) translateX(6px);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  padding: 8px 14px;
  border-radius: 8px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.whatsapp-float:hover .whatsapp-tooltip,
.whatsapp-float:focus-visible .whatsapp-tooltip {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid rgba(0, 240, 200, 0.15);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-inner p { margin: 0; font-size: 14px; }

.footer-social { display: flex; gap: 20px; }

.footer-social svg {
  width: 20px;
  height: 20px;
  fill: var(--text-secondary);
  transition: fill 0.2s ease;
}

.footer-social a:hover svg { fill: var(--accent); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 960px) {
  .side-nav { display: none; }

  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-lead, .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-photo { order: -1; margin-bottom: 24px; }

  .about-grid { grid-template-columns: 1fr; gap: 36px; }
  .about-photo { max-width: 420px; margin: 0 auto; }

  .trajectory-grid { grid-template-columns: 1fr 1fr; }
  .collab-grid { grid-template-columns: 1fr; }
  .network-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.96);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 32px 24px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    border-bottom: 1px solid var(--card-border);
  }

  .main-nav.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .main-nav .nav-link {
    width: 100%;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .main-nav .btn { margin-top: 16px; }

  .menu-toggle { display: flex; }

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

  .section { padding: 88px 0; }

  .card-featured { flex-direction: column; text-align: center; }

  .contact-form { padding: 28px; }

  .redes-lines { display: none; }

  .whatsapp-float {
    width: 52px;
    height: 52px;
  }

  .whatsapp-icon {
    width: 28px;
    height: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fade-in, .draw-line, .draw-line-soft {
    transition: none;
    animation: none;
    opacity: 1;
    stroke-dashoffset: 0;
    transform: none;
  }
}