/* ============================================
   DIEGO A. HERNÁNDEZ RAMOS — PORTFOLIO
   Minimalist Professional Design
   ============================================ */

/* --- RESET & BASE --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #fafaf9;
  --bg-alt: #f5f5f4;
  --bg-dark: #1a1a2e;
  --text: #1c1917;
  --text-secondary: #57534e;
  --text-light: #a8a29e;
  --border: #e7e5e4;

  --constructor: #2563eb;
  --analista: #7c3aed;
  --puente: #059669;
  --raiz: #dc2626;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 3rem;
  --space-xl: 5rem;
  --space-2xl: 8rem;

  --max-width: 1100px;
  --radius: 8px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

/* --- UTILITIES --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-2xl) 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section-dark {
  background: var(--bg-dark);
  color: #e7e5e4;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text);
}

.section-dark .section-title,
.section-dark .contact-title {
  color: #fafaf9;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin-bottom: var(--space-xl);
}

.subsection-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

/* --- ANIMATIONS --- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.5s; }
.delay-4 { animation-delay: 0.7s; }
.delay-5 { animation-delay: 0.9s; }

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* --- NAV --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250, 250, 249, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.nav.scrolled {
  border-bottom-color: var(--border);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

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

.nav-links {
  display: flex;
  gap: var(--space-md);
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--text);
  transition: width var(--transition);
}

.nav-links a:hover {
  color: var(--text);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  transition: var(--transition);
}

.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 0 var(--space-md) var(--space-md);
  gap: var(--space-sm);
}

.nav-mobile a {
  font-size: 1rem;
  color: var(--text-secondary);
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--border);
}

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

/* --- HERO --- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(64px + var(--space-xl)) var(--space-md) var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-greeting {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.5vw, 1.4rem);
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  max-width: 700px;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 680px;
  margin-bottom: var(--space-lg);
}

.hero-metrics {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.metric {
  display: flex;
  flex-direction: column;
}

.metric-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text);
}

.metric-plus {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--constructor);
}

.metric-label {
  font-size: 0.85rem;
  color: var(--text-light);
  max-width: 180px;
  margin-top: var(--space-xs);
}

.hero-cta {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--text);
  color: var(--bg);
}

.btn-primary:hover {
  background: #292524;
  transform: translateY(-1px);
}

.btn-outline {
  border: 1.5px solid var(--border);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--text);
  transform: translateY(-1px);
}

.hero-scroll {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
}

.scroll-indicator {
  width: 24px;
  height: 40px;
  border: 2px solid var(--border);
  border-radius: 12px;
  position: relative;
}

.scroll-indicator::after {
  content: '';
  position: absolute;
  width: 4px;
  height: 8px;
  background: var(--text-light);
  border-radius: 2px;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
  50% { transform: translateX(-50%) translateY(12px); opacity: 0.3; }
}

/* --- ABOUT --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-xl);
  align-items: start;
}

.about-text p {
  margin-bottom: var(--space-md);
  font-size: 1.05rem;
  color: var(--text-secondary);
}

.about-text strong {
  color: var(--text);
  font-weight: 600;
}

.about-philosophy {
  font-size: 1.1rem !important;
  color: var(--text) !important;
  border-left: 3px solid var(--constructor);
  padding-left: var(--space-md);
  margin-top: var(--space-lg) !important;
}

.aside-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
}

.aside-card h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-light);
  margin-bottom: var(--space-sm);
}

.language-list {
  list-style: none;
}

.language-list li {
  display: flex;
  justify-content: space-between;
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.language-list li:last-child {
  border-bottom: none;
}

.lang-name {
  font-weight: 600;
}

.lang-level {
  color: var(--text-light);
  font-size: 0.85rem;
}

.aside-stat {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  margin-bottom: var(--space-xs);
}

.stat-num {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text);
  min-width: 50px;
}

.stat-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* --- PILLARS --- */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.pillar-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-lg);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.pillar-card[data-accent="constructor"]::before { background: var(--constructor); }
.pillar-card[data-accent="analista"]::before { background: var(--analista); }
.pillar-card[data-accent="puente"]::before { background: var(--puente); }
.pillar-card[data-accent="raiz"]::before { background: var(--raiz); }

.pillar-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.06);
}

.pillar-icon {
  width: 44px;
  height: 44px;
  margin-bottom: var(--space-md);
}

.pillar-card[data-accent="constructor"] .pillar-icon { color: var(--constructor); }
.pillar-card[data-accent="analista"] .pillar-icon { color: var(--analista); }
.pillar-card[data-accent="puente"] .pillar-icon { color: var(--puente); }
.pillar-card[data-accent="raiz"] .pillar-icon { color: var(--raiz); }

.pillar-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.pillar-motto {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: var(--space-md);
}

.pillar-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.project-mini h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
}

.project-mini p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.project-mini strong {
  color: var(--text);
}

.pillar-link {
  display: inline-block;
  margin-top: var(--space-md);
  font-size: 0.875rem;
  font-weight: 600;
  transition: color var(--transition);
}

.pillar-card[data-accent="constructor"] .pillar-link { color: var(--constructor); }

.pillar-link:hover {
  opacity: 0.7;
}

/* --- TIMELINE --- */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 12px;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-lg);
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -34px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: white;
  border: 2px solid var(--border);
  z-index: 1;
}

.dot-highlight {
  background: var(--constructor);
  border-color: var(--constructor);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

.timeline-content {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-md);
  transition: transform var(--transition), box-shadow var(--transition);
}

.timeline-content:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}

.timeline-year {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--constructor);
}

.timeline-content h4 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0.25rem 0;
}

.timeline-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.timeline-content strong {
  color: var(--text);
}

/* --- EDUCATION --- */
.education-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.edu-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-md);
}

.edu-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  background: #eff6ff;
  color: var(--constructor);
  margin-bottom: var(--space-sm);
}

.edu-badge-alt {
  background: #f0fdf4;
  color: var(--puente);
}

.edu-badge-accent {
  background: #fef2f2;
  color: var(--raiz);
}

.edu-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
}

.edu-institution {
  font-weight: 500;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

.edu-status {
  font-size: 0.85rem;
  color: var(--text-light);
  font-style: italic;
  margin-bottom: var(--space-xs);
}

.edu-detail {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 0.25rem;
}

/* --- RECOGNITIONS --- */
.recognitions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.recognition-item {
  background: white;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.recognition-item:hover {
  border-color: var(--text-light);
  color: var(--text);
}

/* --- EXPERIENCE --- */
.experience-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.exp-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.exp-item:last-child {
  border-bottom: none;
}

.exp-period {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-light);
  padding-top: 2px;
}

.exp-body h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
}

.exp-company {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.exp-body p:last-child {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* --- CONTACT / FOOTER --- */
.contact-content {
  text-align: center;
  padding: var(--space-lg) 0;
}

.contact-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.contact-subtitle {
  font-size: 1.1rem;
  color: #a8a29e;
  max-width: 600px;
  margin: 0 auto var(--space-lg);
  line-height: 1.8;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.95rem;
  color: #d6d3d1;
  transition: color var(--transition);
}

.contact-item:hover {
  color: white;
}

.contact-item svg {
  width: 20px;
  height: 20px;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: var(--space-lg);
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-light);
}

/* --- HERO ROLE --- */
.hero-role {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--constructor);
  margin-bottom: var(--space-xs);
}

/* --- TECH TAGS --- */
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  background: var(--bg-alt);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.tag-main {
  background: var(--text);
  color: white;
  border-color: var(--text);
  font-weight: 600;
}

/* --- NAV MAP LINK --- */
.nav-map-link {
  color: var(--constructor) !important;
  font-weight: 600 !important;
}

/* --- RESPONSIVE --- */
@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

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

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

  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-metrics {
    gap: var(--space-md);
  }
}

@media (max-width: 600px) {
  .hero {
    padding-top: calc(64px + var(--space-lg));
  }

  .hero-name {
    font-size: 2.2rem;
  }

  .metric-number,
  .metric-plus {
    font-size: 2rem;
  }

  .exp-item {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .contact-links {
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
  }

  .section {
    padding: var(--space-xl) 0;
  }

  .pillar-card {
    padding: var(--space-md);
  }
}