/* ============================================================
   Elizaga Technology Consulting — style.css
   Dark theme portfolio with glass-morphism design
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --bg: #0a0a0a;
  --surface: #111111;
  --accent: #3b82f6;
  --text: #f1f5f9;
  --muted: #94a3b8;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent);
  opacity: 0.8;
}

/* ---------- Container ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Section Titles & Subtitles ---------- */
.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
  color: var(--text);
}

.section-subtitle {
  text-align: center;
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 48px;
}

/* ============================================================
   Navigation
   ============================================================ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 64px;
  background: rgba(10, 10, 10, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-logo:hover {
  color: var(--accent);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 32px;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px 8px;
}

/* ============================================================
   Hero Section
   ============================================================ */
#home {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 64px 24px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg) 0%, var(--surface) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

#home h1 {
  font-size: clamp(2.25rem, 6vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text) 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tagline {
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: var(--muted);
  margin-bottom: 40px;
  font-weight: 400;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn-primary {
  display: inline-block;
  padding: 14px 32px;
  background: var(--accent);
  color: white;
  font-weight: 700;
  font-size: 1rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-primary:hover {
  background: rgba(59, 130, 246, 0.8);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
  display: inline-block;
  padding: 9px 20px;
  background: transparent;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 8px;
  border: 1px solid var(--accent);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  margin-top: 16px;
}

.btn-secondary:hover {
  background: rgba(59, 130, 246, 0.1);
  transform: translateY(-1px);
}

.btn-ghost {
  display: inline-block;
  padding: 6px 14px;
  background: transparent;
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-ghost:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(59, 130, 246, 0.05);
}

/* ============================================================
   Cards (Glass-Morphism)
   ============================================================ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 1.5rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.3);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 8px 32px rgba(59, 130, 246, 0.15);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 4px;
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin: 0;
}

.price {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 20px;
  padding: 4px 12px;
  width: fit-content;
}

.card p {
  color: var(--muted);
  font-size: 0.925rem;
  line-height: 1.6;
  flex: 1;
}

/* Open Source Cards */
.oss-card {
  grid-column: span 1;
}

.oss-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 8px;
}

.oss-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.oss-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.oss-meta h3 {
  margin: 0;
}

.stars-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  background: transparent;
  border: 1px solid var(--accent);
  border-radius: 20px;
  padding: 3px 10px;
  width: fit-content;
}

.oss-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
}

.tag {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 20px;
  padding: 3px 10px;
}

/* ============================================================
   Services Section
   ============================================================ */
#services {
  padding: 80px 0;
}

/* ============================================================
   Open Source Section
   ============================================================ */
#open-source {
  padding: 80px 0;
}

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

/* ============================================================
   Tech Stack
   ============================================================ */
#tech-stack {
  padding: 80px 0;
}

.stack-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  max-width: 900px;
  margin: 0 auto;
}

.stack-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--text);
  transition: all 0.2s ease;
}

.stack-item:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  background: rgba(59, 130, 246, 0.05);
}

.stack-icon {
  font-size: 1.1rem;
}

/* ============================================================
   Testimonials Section
   ============================================================ */
#testimonials {
  padding: 80px 0;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 1.5rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: relative;
  transition: all 0.3s ease;
}

.testimonial-card:hover {
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.3);
  background: rgba(255, 255, 255, 0.08);
}

.testimonial-card::before {
  content: '\201C';
  position: absolute;
  top: 16px;
  left: 20px;
  font-size: 3rem;
  color: var(--accent);
  opacity: 0.2;
  font-family: Georgia, serif;
}

.testimonial-card p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.7;
  padding-top: 24px;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-card footer {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.testimonial-card footer strong {
  color: var(--text);
  font-size: 0.95rem;
}

.testimonial-card footer span {
  color: var(--muted);
  font-size: 0.825rem;
}

/* ============================================================
   About Section
   ============================================================ */
#about {
  padding: 80px 0;
}

.about-container {
  max-width: 760px;
}

.about-text p {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 18px;
}

.about-values {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.value-tag {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  padding: 8px 16px;
  transition: all 0.2s ease;
}

.value-tag:hover {
  border-color: var(--accent);
  background: rgba(59, 130, 246, 0.05);
}

/* ============================================================
   Contact Form
   ============================================================ */
#contact {
  padding: 80px 0;
}

.contact-form {
  max-width: 660px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.01em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: all 0.2s ease;
  appearance: none;
  -webkit-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 fill='%23f1f5f9' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 130px;
}

.btn-submit {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  letter-spacing: 0.02em;
  margin-top: 8px;
}

.form-status {
  text-align: center;
  font-size: 0.9rem;
  min-height: 1.2em;
  color: var(--accent);
}

.form-status.error {
  color: #ff6b6b;
}

/* ============================================================
   Footer
   ============================================================ */
#footer {
  background: var(--surface);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 40px 0;
}

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

.footer-copy {
  color: var(--muted);
  font-size: 0.875rem;
}

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

.footer-social a {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* ============================================================
   Animations
   ============================================================ */
.animate-in {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   Responsive Design
   ============================================================ */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    flex-direction: column;
    gap: 0;
    padding: 12px 0;
    list-style: none;
  }

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

  .nav-links li a {
    display: block;
    padding: 12px 24px;
  }

  .nav-toggle {
    display: block;
  }

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

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

  #open-source .cards-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-container {
    flex-direction: column;
    text-align: center;
  }

  .footer-social {
    justify-content: center;
  }

  #home h1 {
    font-size: 2.25rem;
  }
}

@media (max-width: 480px) {
  .stack-grid {
    gap: 10px;
  }

  .stack-item {
    padding: 8px 14px;
    font-size: 0.85rem;
  }
}