/* ============================
   CARLOS CRISTOBAL · carloscd.com
   Dark Techno Corporate Theme
   ============================ */

:root {
  --bg:          #07080f;
  --bg2:         #0d0f1c;
  --bg3:         #12152a;
  --surface:     #161929;
  --surface2:    #1e2238;
  --border:      #2a2f50;
  --border2:     #353c66;
  --accent:      #7b5ea7;
  --accent2:     #9b7fd4;
  --accent3:     #4a90d9;
  --accent-glow: rgba(123, 94, 167, 0.4);
  --accent3-glow: rgba(74, 144, 217, 0.3);
  --text:        #e2e4f0;
  --text2:       #9499b8;
  --text3:       #5a5f80;
  --green:       #39d98a;
  --red:         #ff5f5f;
  --yellow:      #f5c842;
  --font-mono:   'Share Tech Mono', monospace;
  --font-head:   'Exo 2', sans-serif;
  --font-body:   'Rajdhani', sans-serif;
  --radius:      6px;
  --transition:  0.25s ease;
}

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

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
}

/* ---- GRID BACKGROUND ---- */
.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(123,94,167,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(123,94,167,0.06) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
}
.noise-overlay {
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}

/* ---- HEADER ---- */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(7,8,15,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  letter-spacing: 0.05em;
}
.logo-bracket { color: var(--accent2); }
.logo-name    { color: var(--text); font-weight: 700; }
.logo-dot     { color: var(--accent3); }
.logo-tld     { color: var(--accent3); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.main-nav a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text2);
  text-decoration: none;
  letter-spacing: 0.06em;
  transition: color var(--transition);
  text-transform: uppercase;
}
.main-nav a:hover { color: var(--accent2); }

.lang-toggle {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 20px;
  padding: 4px 14px;
  cursor: pointer;
  transition: all var(--transition);
}
.lang-toggle:hover {
  background: var(--accent);
  border-color: var(--accent);
}
.lang-indicator {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text);
  letter-spacing: 0.1em;
}

/* ---- SECTIONS GENERAL ---- */
section {
  position: relative;
  z-index: 1;
}
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 2rem;
}
.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent2);
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  opacity: 0.8;
}
h2 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2rem;
  letter-spacing: -0.02em;
}

/* ---- HERO ---- */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
}
#hero .section-inner,
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  width: 100%;
}

/* Hero content replaces section-inner in hero section */
#hero {
  padding-top: 64px;
}
#hero > .hero-content,
#hero > .hero-terminal {
  position: relative;
  z-index: 1;
}

/* override – hero uses its own inner layout */
#hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px 2rem 4rem;
  min-height: 100vh;
}

.hero-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent2);
  margin-bottom: 1.2rem;
  opacity: 0.85;
}
.hero-name {
  font-family: var(--font-head);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 0.6rem;
  color: var(--text);
}
.accent { color: var(--accent2); }

.hero-title {
  font-family: var(--font-head);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 600;
  color: var(--accent3);
  margin-bottom: 0.6rem;
  letter-spacing: 0.02em;
}
.hero-sub {
  font-size: 0.95rem;
  color: var(--text2);
  margin-bottom: 2rem;
  letter-spacing: 0.02em;
}
.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 0.75rem 1.8rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 0 20px var(--accent-glow);
  text-transform: uppercase;
}
.btn-primary:hover {
  background: var(--accent2);
  box-shadow: 0 0 30px var(--accent-glow);
  transform: translateY(-2px);
}
.btn-ghost {
  display: inline-block;
  background: transparent;
  color: var(--text2);
  padding: 0.75rem 1.8rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  border: 1px solid var(--border2);
  cursor: pointer;
  transition: all var(--transition);
  text-transform: uppercase;
}
.btn-ghost:hover {
  border-color: var(--accent2);
  color: var(--accent2);
}
.hero-status {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text3);
}
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ---- TERMINAL ---- */
.hero-terminal {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 40px rgba(123,94,167,0.1);
}
.terminal-bar {
  background: var(--bg3);
  padding: 0.7rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.t-btn {
  width: 12px; height: 12px;
  border-radius: 50%;
  display: inline-block;
}
.t-red    { background: var(--red); }
.t-yellow { background: var(--yellow); }
.t-green  { background: var(--green); }
.t-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text3);
  margin-left: auto;
}
.terminal-body {
  padding: 1.2rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.8;
  min-height: 280px;
  color: var(--text2);
}
.t-line { display: block; }
.t-prompt { color: var(--green); }
.t-cmd    { color: var(--text); }
.t-out    { color: var(--text2); }
.t-accent { color: var(--accent2); }
.t-blue   { color: var(--accent3); }
.t-cursor {
  display: inline-block;
  width: 8px; height: 15px;
  background: var(--accent2);
  vertical-align: middle;
  animation: blink 1s step-end infinite;
  margin-left: 2px;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ---- ABOUT ---- */
#about {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.about-text p {
  margin-bottom: 1rem;
  color: var(--text2);
  font-size: 1rem;
}
.stat-card {
  margin-bottom: 1.2rem;
}
.stat-icon { font-size: 1.1rem; margin-bottom: 0.2rem; }
.stat-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text3);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.stat-bar {
  height: 4px;
  background: var(--surface2);
  border-radius: 2px;
  overflow: hidden;
}
.stat-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent3));
  border-radius: 2px;
  width: 0;
  transition: width 1.2s ease;
}

/* ---- SKILLS ---- */
#skills { background: var(--bg); }
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.2rem;
}
.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.skill-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent3));
  opacity: 0;
  transition: opacity var(--transition);
}
.skill-card:hover {
  border-color: var(--border2);
  background: var(--surface2);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}
.skill-card:hover::before { opacity: 1; }
.skill-card.featured {
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--surface), rgba(123,94,167,0.08));
}
.skill-card.featured::before { opacity: 1; }
.skill-icon { font-size: 1.8rem; margin-bottom: 0.7rem; }
.skill-card h3 {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}
.skill-card p {
  font-size: 0.88rem;
  color: var(--text2);
  line-height: 1.6;
}

/* ---- CONTACT ---- */
#contact {
  background: linear-gradient(180deg, var(--bg2) 0%, var(--bg) 100%);
  border-top: 1px solid var(--border);
}
.contact-sub {
  color: var(--text2);
  margin-bottom: 2.5rem;
  max-width: 600px;
}
.contact-wrap {
  max-width: 780px;
}
.form-msg {
  padding: 1rem 1.4rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.form-msg.success {
  background: rgba(57,217,138,0.1);
  border: 1px solid var(--green);
  color: var(--green);
}
.form-msg.error {
  background: rgba(255,95,95,0.1);
  border: 1px solid var(--red);
  color: var(--red);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.form-group label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.char-count {
  font-size: 0.72rem;
  color: var(--text3);
}
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  width: 100%;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
}
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239499b8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(123,94,167,0.15);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text3);
  font-size: 0.88rem;
}
.form-group textarea { resize: vertical; min-height: 140px; }

/* Phone type */
.phone-group { margin-bottom: 0; }
.phone-type {
  display: flex;
  gap: 1.5rem;
  margin-top: 0.4rem;
}
.radio-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text3);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.radio-label input[type="radio"] {
  width: auto;
  accent-color: var(--accent2);
  cursor: pointer;
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.btn-submit {
  font-size: 1rem;
  padding: 0.85rem 2.4rem;
  cursor: pointer;
}
.social-links { display: flex; gap: 1rem; }
.social-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text3);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  transition: color var(--transition);
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 20px;
}
.social-link:hover {
  color: var(--accent2);
  border-color: var(--accent2);
}

/* ---- FOOTER ---- */
#footer {
  border-top: 1px solid var(--border);
  background: var(--bg);
  padding: 2rem;
  position: relative;
  z-index: 1;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-logo {
  font-family: var(--font-mono);
  font-size: 0.9rem;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text3);
  letter-spacing: 0.04em;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  #hero {
    grid-template-columns: 1fr;
    padding-top: 100px;
    gap: 2rem;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}
@media (max-width: 640px) {
  .main-nav a { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
  .form-footer { flex-direction: column; align-items: flex-start; }
}

/* ---- ANIMATIONS ---- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================
   BLOG STYLES
   ============================ */

/* Nav active link */
.nav-active { color: var(--accent2) !important; }

/* Blog main wrapper */
.blog-main {
  position: relative;
  z-index: 1;
  padding-top: 64px;
  min-height: 100vh;
}
.blog-sub {
  color: var(--text2);
  margin-bottom: 2.5rem;
}

/* Blog grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.4rem;
  margin-bottom: 2rem;
}
.blog-grid-home {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

/* Blog card */
.blog-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  transition: all var(--transition);
  position: relative;
  overflow: visible;
  color: var(--text2);
}
.blog-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent3));
  opacity: 0;
  transition: opacity var(--transition);
}
.blog-card:hover {
  border-color: var(--border2);
  background: var(--surface2);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}
.blog-card:hover::before { opacity: 1; }

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.blog-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text3);
  letter-spacing: 0.06em;
}
.blog-card-title {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
  margin: 0;
}
.blog-card-excerpt {
  font-size: 0.88rem;
  color: var(--text2);
  line-height: 1.65;
  flex: 1;
}
.blog-read-more {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent2);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color var(--transition);
  margin-top: auto;
}
.blog-read-more:hover { color: var(--accent3); }

/* View all / empty */
.blog-view-all {
  text-align: center;
  margin-top: 1.5rem;
}
.blog-empty {
  text-align: center;
  color: var(--text3);
  padding: 3rem 0;
  font-family: var(--font-mono);
}

/* Pagination */
.blog-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.blog-page-info {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text3);
}

/* ---- SINGLE POST ---- */
.post-inner { max-width: 780px; }

.post-nav-top {
  margin-bottom: 2rem;
}
.post-back {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text3);
  text-decoration: none;
  transition: color var(--transition);
}
.post-back:hover { color: var(--accent2); }

.post-article {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.post-header {
  padding: 2rem 2.5rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, var(--bg2), var(--surface));
}
.post-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text3);
  letter-spacing: 0.06em;
  margin-bottom: 0.8rem;
}
.post-title {
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 800;
  color: var(--text);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0;
}

/* Post content typography */
.post-content {
  padding: 2rem 2.5rem;
  color: var(--text2);
  line-height: 1.8;
  font-size: 1rem;
}
.post-content h2 {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  margin: 2rem 0 0.8rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}
.post-content h3 {
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--accent2);
  margin: 1.5rem 0 0.5rem;
}
.post-content p  { margin-bottom: 1rem; }
.post-content ul,
.post-content ol { padding-left: 1.5rem; margin-bottom: 1rem; }
.post-content li { margin-bottom: 0.4rem; }
.post-content a  { color: var(--accent2); text-decoration: underline; }
.post-content a:hover { color: var(--accent3); }
.post-content strong { color: var(--text); font-weight: 700; }
.post-content pre {
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  overflow-x: auto;
  margin: 1.2rem 0;
}
.post-content code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent2);
}
.post-content pre code { color: var(--text2); }

.post-footer {
  padding: 1.5rem 2.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

/* 404 post */
.post-404 {
  text-align: center;
  padding: 4rem 0;
}
.post-404 h1 {
  margin-bottom: 1rem;
}
.post-404 p {
  color: var(--text2);
  margin-bottom: 2rem;
}

/* Blog section on index */
#blog {
  background: linear-gradient(180deg, var(--bg2) 0%, var(--bg) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

@media (max-width: 640px) {
  .post-header  { padding: 1.5rem; }
  .post-content { padding: 1.5rem; }
  .post-footer  { padding: 1rem 1.5rem; }
  .blog-grid    { grid-template-columns: 1fr; }
}

.blog-card { opacity: 1 !important; transform: none !important; }