/* ============================================================
   ASTRAYNET – Global Styles
   Luis García | Data Engineer & Technology Builder
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Syne:wght@400;500;600;700;800&family=JetBrains+Mono:wght@300;400;500;600&display=swap');

/* ── CSS Variables ── */
:root {
  --bg-primary:     #080c14;
  --bg-secondary:   #0d1420;
  --bg-card:        #111827;
  --bg-card-hover:  #141e2e;

  --accent-blue:    #0ea5e9;
  --accent-cyan:    #22d3ee;
  --accent-green:   #10b981;
  --accent-purple:  #818cf8;
  --accent-glow:    rgba(14, 165, 233, 0.15);

  --text-primary:   #f0f6ff;
  --text-secondary: #8fa3c1;
  --text-muted:     #4a6080;
  --text-accent:    #0ea5e9;

  --border:         rgba(14, 165, 233, 0.12);
  --border-hover:   rgba(14, 165, 233, 0.35);

  --font-display:   'Orbitron', monospace;
  --font-body:      'Syne', sans-serif;
  --font-mono:      'JetBrains Mono', monospace;

  --nav-h:          72px;
  --radius:         8px;
  --radius-lg:      16px;

  --transition:     all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ── Grid Background ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(14, 165, 233, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14, 165, 233, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-blue); border-radius: 3px; }

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(1.8rem, 5vw, 4rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 4vw, 2.8rem); font-weight: 700; }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.6rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }

p { color: var(--text-secondary); line-height: 1.75; }
a { color: var(--accent-blue); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-cyan); }

code, pre {
  font-family: var(--font-mono);
  font-size: 0.85em;
}

/* ── Container ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2.5rem);
  position: relative;
  z-index: 1;
}

/* ── Section ── */
.section {
  padding: clamp(4rem, 8vw, 7rem) 0;
  position: relative;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--accent-blue);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-label::before {
  content: '';
  width: 2rem;
  height: 1px;
  background: var(--accent-blue);
}

.section-title {
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 3rem;
}

/* ── Navbar ── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(8, 12, 20, 0.82);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-logo img {
  height: 40px;
  width: auto;
}

.nav-logo-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

.nav-logo-text span { 
  color: var(--accent-blue); 
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

/* 🔥 NAV LINKS UPGRADE */
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius);
  transition: var(--transition);
  position: relative;
  background: transparent; /* eliminamos glow */
}

/* Hover solo cambia color */
.nav-links a:hover,
.nav-links a.active {
  color: var(--accent-blue);
  background: transparent;
}

/* Underline animado elegante */
.nav-links a::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 6px;
  width: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--accent-blue),
    transparent
  );
  transform: translateX(-50%);
  transition: width 0.3s ease;
  opacity: 0.9;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 60%;
}

/* CTA separado (no usa underline) */
.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.5rem 1.25rem !important;
  border: 1px solid var(--accent-blue) !important;
  border-radius: var(--radius) !important;
  color: var(--accent-blue) !important;
  background: transparent !important;
}

.nav-cta::after {
  display: none; /* evita underline en botón */
}

.nav-cta:hover {
  background: var(--accent-blue) !important;
  color: var(--bg-primary) !important;
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.5rem;
  background: none;
  border: none;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
  border-radius: 2px;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--accent-cyan);
  color: var(--bg-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(14, 165, 233, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--accent-blue);
  border: 1px solid var(--accent-blue);
}

.btn-outline:hover {
  background: var(--accent-glow);
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(255,255,255,0.04);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

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

/* ── Cards ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4), 0 0 30px rgba(14,165,233,0.05);
}

.card:hover::before { opacity: 1; }

/* ── Tags / Badges ── */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  font-weight: 500;
  background: rgba(14, 165, 233, 0.1);
  color: var(--accent-blue);
  border: 1px solid rgba(14, 165, 233, 0.2);
}

.tag.green {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-green);
  border-color: rgba(16, 185, 129, 0.2);
}

.tag.purple {
  background: rgba(129, 140, 248, 0.1);
  color: var(--accent-purple);
  border-color: rgba(129, 140, 248, 0.2);
}

/* ── Code Block ── */
.code-block {
  background: #040810;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.75;
  overflow-x: auto;
  position: relative;
}

.code-block .code-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.code-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}

.code-dot:nth-child(1) { background: #ff5f57; }
.code-dot:nth-child(2) { background: #ffbd2e; }
.code-dot:nth-child(3) { background: #28ca41; }

.code-lang {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-left: auto;
  letter-spacing: 0.1em;
}

.kw { color: #f472b6; }
.fn { color: #60a5fa; }
.str { color: #34d399; }
.cm { color: #4a6080; font-style: italic; }
.kw2 { color: #a78bfa; }
.num { color: #fb923c; }

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
  background: var(--bg-secondary);
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  font-size: 0.9rem;
  margin-top: 0.75rem;
  max-width: 280px;
  line-height: 1.7;
}

.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-col ul a {
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-col ul a:hover { color: var(--accent-blue); padding-left: 4px; }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-social {
  display: flex;
  gap: 0.75rem;
}

.social-btn {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  transition: var(--transition);
  font-size: 1rem;
}

.social-btn:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  background: var(--accent-glow);
}

/* ── Page Hero (inner pages) ── */
.page-hero {
  padding: calc(var(--nav-h) + 4rem) 0 4rem;
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-blue), transparent);
  opacity: 0.4;
}

/* ── Skill Bar ── */
.skill-bar-wrap {
  margin-bottom: 1.25rem;
}

.skill-bar-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
}

.skill-bar-track {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.skill-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  border-radius: 2px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
}

/* ── Timeline ── */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent-blue), transparent);
}

.timeline-item {
  position: relative;
  padding-bottom: 2.5rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2.45rem;
  top: 0.25rem;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent-blue);
  border: 2px solid var(--bg-primary);
  box-shadow: 0 0 10px var(--accent-blue);
}

/* ── Glow Orb ── */
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

/* ── Grid Layouts ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }

/* ── Divider ── */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 2rem 0;
}

/* ── Animations ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 10px rgba(14,165,233,0.3); }
  50%       { box-shadow: 0 0 30px rgba(14,165,233,0.7); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

@keyframes scanline {
  0%   { top: -10%; }
  100% { top: 110%; }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.animate-fadeInUp { animation: fadeInUp 0.7s ease both; }
.animate-delay-1  { animation-delay: 0.1s; }
.animate-delay-2  { animation-delay: 0.2s; }
.animate-delay-3  { animation-delay: 0.3s; }
.animate-delay-4  { animation-delay: 0.4s; }
.animate-delay-5  { animation-delay: 0.5s; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; flex-direction: column; position: fixed;
    top: var(--nav-h); left: 0; right: 0; background: rgba(8,12,20,0.97);
    backdrop-filter: blur(20px); padding: 1.5rem; gap: 0.5rem;
    border-bottom: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .nav-hamburger { display: flex; }
  .nav-links a { padding: 0.75rem 1rem; font-size: 0.9rem; }

  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}

@media (max-width: 480px) {
  .btn { padding: 0.65rem 1.25rem; font-size: 0.8rem; }
}