/* ================================================
   DESIGN SYSTEM — medeirosj.com
   Palette: Deep navy + warm amber + cool blue
   Type: Space Grotesk / Inter / JetBrains Mono
   ================================================ */

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

:root {
  --bg-primary: #06090f;
  --bg-surface: #0d1117;
  --bg-elevated: #161b22;
  --bg-card: #1a1f2b;
  --accent: #f59e0b;
  --accent-hover: #fbbf24;
  --accent-dim: rgba(245, 158, 11, 0.12);
  --blue: #3b82f6;
  --blue-dim: rgba(59, 130, 246, 0.10);
  --green: #10b981;
  --red: #ef4444;
  --text-primary: #f0f4f8;
  --text-secondary: #8b95a5;
  --text-muted: #4a5568;
  --border: rgba(255, 255, 255, 0.06);
  --border-light: rgba(255, 255, 255, 0.10);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: var(--bg-primary); }

a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; display: block; }

/* ============ NAVIGATION ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 1.25rem 2rem;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(6, 9, 15, 0.75);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: padding 0.3s var(--ease-out), background 0.3s;
}
.nav.scrolled { padding: 0.75rem 2rem; background: rgba(6, 9, 15, 0.92); }

.nav-logo {
  font-family: var(--font-display); font-weight: 700; font-size: 1.3rem;
  color: var(--text-primary); letter-spacing: -0.02em;
  display: flex; align-items: center; gap: 0.5rem;
}
.nav-logo .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }

.nav-links { display: flex; gap: 2rem; align-items: center; list-style: none; }
.nav-links a {
  font-size: 0.875rem; font-weight: 500; color: var(--text-secondary);
  letter-spacing: 0.01em; transition: color 0.2s; position: relative;
}
.nav-links a:hover, .nav-links a.current { color: var(--text-primary); }
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
  background: var(--accent); transition: width 0.3s var(--ease-out);
}
.nav-links a:hover::after, .nav-links a.current::after { width: 100%; }

.nav-cta {
  background: var(--accent) !important; color: var(--bg-primary) !important;
  padding: 0.5rem 1.25rem; border-radius: 6px;
  font-weight: 600 !important; font-size: 0.8rem !important;
  letter-spacing: 0.02em; text-transform: uppercase;
  transition: transform 0.2s var(--ease-spring), box-shadow 0.2s !important;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 20px rgba(245,158,11,0.3); color: var(--bg-primary) !important; }
.nav-cta::after { display: none !important; }

.hamburger {
  display: none; background: none; border: none; cursor: pointer;
  width: 28px; height: 20px; position: relative; z-index: 110;
}
.hamburger span {
  display: block; width: 100%; height: 2px; background: var(--text-primary);
  position: absolute; left: 0; transition: 0.3s var(--ease-out);
}
.hamburger span:nth-child(1) { top: 0; }
.hamburger span:nth-child(2) { top: 9px; }
.hamburger span:nth-child(3) { top: 18px; }
.hamburger.active span:nth-child(1) { top: 9px; transform: rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { top: 9px; transform: rotate(-45deg); }

.mobile-menu {
  display: none; position: fixed; inset: 0; z-index: 105;
  background: rgba(6, 9, 15, 0.97); backdrop-filter: blur(30px);
  flex-direction: column; align-items: center; justify-content: center; gap: 2rem;
}
.mobile-menu.active { display: flex; }
.mobile-menu a {
  font-family: var(--font-display); font-size: 1.8rem; font-weight: 600; color: var(--text-primary);
}

/* ============ SECTIONS ============ */
.section { padding: 6rem 2rem; position: relative; }
.section-inner { max-width: 1200px; margin: 0 auto; }

.section-label {
  font-family: var(--font-mono); font-size: 0.78rem; font-weight: 500;
  color: var(--accent); letter-spacing: 0.08em; text-transform: uppercase;
  margin-bottom: 1rem; display: flex; align-items: center; gap: 0.75rem;
}
.section-label::before { content: '//'; color: var(--text-muted); }

.section-heading {
  font-family: var(--font-display); font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700; letter-spacing: -0.03em;
  margin-bottom: 1rem; line-height: 1.15;
}
.section-sub {
  font-size: 1.05rem; color: var(--text-secondary);
  max-width: 600px; margin-bottom: 3rem; line-height: 1.7;
}

/* ============ PAGE HERO (non-home pages) ============ */
.page-hero {
  padding: 10rem 2rem 4rem; position: relative; overflow: hidden;
}
.page-hero .hero-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 80%);
}
.page-hero-content { max-width: 800px; position: relative; z-index: 1; }
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700; line-height: 1.1; letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}
.page-hero p {
  font-size: 1.15rem; color: var(--text-secondary); max-width: 560px; line-height: 1.7;
}

/* ============ BUTTONS ============ */
.btn-primary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--accent); color: var(--bg-primary);
  padding: 0.85rem 2rem; border-radius: 8px; border: none;
  font-family: var(--font-display); font-weight: 600; font-size: 0.95rem;
  cursor: pointer; transition: all 0.25s var(--ease-spring);
  letter-spacing: -0.01em;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(245,158,11,0.25); color: var(--bg-primary); }
.btn-primary svg { width: 18px; height: 18px; }

.btn-outline {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: transparent; color: var(--text-primary);
  padding: 0.85rem 2rem; border-radius: 8px;
  border: 1px solid var(--border-light);
  font-family: var(--font-display); font-weight: 500; font-size: 0.95rem;
  cursor: pointer; transition: all 0.25s;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* ============ SERVICE CARDS ============ */
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.service-card {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 2.25rem;
  transition: border-color 0.3s, transform 0.3s var(--ease-out);
  position: relative; overflow: hidden;
}
.service-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0; transition: opacity 0.3s;
}
.service-card:hover::before { opacity: 1; }

.service-icon {
  width: 48px; height: 48px; border-radius: 10px;
  background: var(--accent-dim); display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.5rem;
}
.service-icon svg { width: 24px; height: 24px; color: var(--accent); }
.service-card h3 {
  font-family: var(--font-display); font-size: 1.2rem; font-weight: 600;
  margin-bottom: 0.75rem; letter-spacing: -0.01em;
}
.service-card p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.65; }

/* ============ PORTFOLIO ============ */
.portfolio-filters { display: flex; gap: 0.5rem; margin-bottom: 2.5rem; flex-wrap: wrap; }
.filter-btn {
  background: var(--bg-elevated); border: 1px solid var(--border);
  color: var(--text-secondary); padding: 0.5rem 1.25rem;
  border-radius: 100px; font-family: var(--font-body);
  font-size: 0.82rem; font-weight: 500; cursor: pointer; transition: all 0.2s;
}
.filter-btn:hover, .filter-btn.active {
  background: var(--accent-dim); border-color: var(--accent); color: var(--accent);
}

.portfolio-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.portfolio-card {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden;
  transition: border-color 0.3s, transform 0.35s var(--ease-out); cursor: pointer;
}
.portfolio-card:hover { border-color: var(--accent); transform: translateY(-6px); }
.portfolio-preview {
  width: 100%; aspect-ratio: 16/9; overflow: hidden;
  background: var(--bg-elevated); position: relative;
}
.portfolio-preview-img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s var(--ease-out);
}
.portfolio-card:hover .portfolio-preview-img { transform: scale(1.04); }
.portfolio-overlay {
  position: absolute; inset: 0; background: rgba(6,9,15,0.7);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.3s;
}
.portfolio-card:hover .portfolio-overlay { opacity: 1; }
.portfolio-overlay-btn {
  background: var(--accent); color: var(--bg-primary);
  padding: 0.65rem 1.5rem; border-radius: 6px;
  font-family: var(--font-display); font-weight: 600; font-size: 0.85rem;
  transform: translateY(10px); transition: transform 0.3s var(--ease-out);
}
.portfolio-card:hover .portfolio-overlay-btn { transform: translateY(0); }
.portfolio-info { padding: 1.5rem; }
.portfolio-tags { display: flex; gap: 0.5rem; margin-bottom: 0.75rem; flex-wrap: wrap; }
.portfolio-tag {
  font-family: var(--font-mono); font-size: 0.68rem; font-weight: 500;
  color: var(--blue); background: var(--blue-dim);
  padding: 0.2rem 0.6rem; border-radius: 4px; letter-spacing: 0.02em;
}
.portfolio-info h3 {
  font-family: var(--font-display); font-size: 1.15rem; font-weight: 600;
  margin-bottom: 0.35rem; letter-spacing: -0.01em;
}
.portfolio-info p { color: var(--text-secondary); font-size: 0.85rem; }
.portfolio-card.featured { grid-column: span 2; }
.portfolio-card.featured .portfolio-preview { aspect-ratio: 21/9; }

/* ============ PROCESS ============ */
.process-track {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative;
}
.process-track::before {
  content: ''; position: absolute; top: 34px; left: 10%; right: 10%;
  height: 2px; background: var(--border-light);
}
.process-step { text-align: center; position: relative; padding: 0 1rem; }
.process-num {
  width: 68px; height: 68px; border-radius: 50%;
  background: var(--bg-elevated); border: 2px solid var(--border-light);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1.25rem;
  font-family: var(--font-display); font-size: 1.4rem; font-weight: 700;
  color: var(--accent); position: relative; z-index: 2;
  transition: border-color 0.3s, background 0.3s;
}
.process-step:hover .process-num { border-color: var(--accent); background: var(--accent-dim); }
.process-step h3 {
  font-family: var(--font-display); font-size: 1.05rem; font-weight: 600; margin-bottom: 0.5rem;
}
.process-step p { color: var(--text-secondary); font-size: 0.85rem; line-height: 1.6; }

/* ============ ABOUT ============ */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.about-image-wrap {
  position: relative; border-radius: 12px; overflow: hidden;
  aspect-ratio: 4/5; background: var(--bg-elevated); border: 1px solid var(--border);
}
.about-image-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 1rem; color: var(--text-muted);
  font-family: var(--font-mono); font-size: 0.85rem;
}
.about-image-placeholder svg { width: 48px; height: 48px; opacity: 0.3; }
.about-content h2 {
  font-family: var(--font-display); font-size: 2.2rem; font-weight: 700;
  letter-spacing: -0.03em; margin-bottom: 1.5rem; line-height: 1.2;
}
.about-content p { color: var(--text-secondary); margin-bottom: 1.25rem; font-size: 1rem; line-height: 1.75; }
.about-highlights { display: flex; flex-direction: column; gap: 0.75rem; margin-top: 2rem; }
.about-highlight {
  display: flex; align-items: center; gap: 0.75rem;
  font-size: 0.92rem; color: var(--text-primary);
}
.about-highlight::before {
  content: ''; width: 8px; height: 8px; border-radius: 2px;
  background: var(--accent); flex-shrink: 0;
}

/* ============ TESTIMONIALS ============ */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.testimonial-card {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 2rem;
}
.testimonial-stars { color: var(--accent); margin-bottom: 1rem; font-size: 0.9rem; letter-spacing: 2px; }
.testimonial-text {
  color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7;
  margin-bottom: 1.5rem; font-style: italic;
}
.testimonial-author { display: flex; align-items: center; gap: 0.75rem; }
.testimonial-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--bg-elevated); display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 600; color: var(--accent); font-size: 0.85rem;
}
.testimonial-meta h4 { font-size: 0.88rem; font-weight: 600; }
.testimonial-meta p { font-size: 0.75rem; color: var(--text-muted); }

/* ============ CONTACT ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.contact-info h2 {
  font-family: var(--font-display); font-size: 2.2rem; font-weight: 700;
  letter-spacing: -0.03em; margin-bottom: 1rem; line-height: 1.2;
}
.contact-info > p { color: var(--text-secondary); font-size: 1rem; margin-bottom: 2rem; line-height: 1.7; }
.contact-detail {
  display: flex; align-items: center; gap: 1rem;
  margin-bottom: 1.25rem; color: var(--text-secondary); font-size: 0.92rem;
}
.contact-detail-icon {
  width: 40px; height: 40px; border-radius: 8px;
  background: var(--accent-dim); display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-detail-icon svg { width: 18px; height: 18px; color: var(--accent); }

.contact-form {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 2.5rem;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.form-group { margin-bottom: 1rem; }
.form-group label {
  display: block; font-size: 0.82rem; font-weight: 500;
  color: var(--text-secondary); margin-bottom: 0.4rem;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 0.75rem 1rem;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text-primary);
  font-family: var(--font-body); font-size: 0.92rem;
  transition: border-color 0.2s; outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--accent); }
.form-group textarea { min-height: 120px; resize: vertical; }
.form-group select { cursor: pointer; }
.form-group select option { background: var(--bg-elevated); }

.form-submit {
  width: 100%; padding: 0.85rem;
  background: var(--accent); color: var(--bg-primary); border: none;
  border-radius: 8px; font-family: var(--font-display);
  font-weight: 600; font-size: 0.95rem; cursor: pointer;
  transition: all 0.25s var(--ease-spring);
}
.form-submit:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(245,158,11,0.25); }
.form-success {
  display: none; text-align: center; padding: 2rem; color: var(--green); font-weight: 500;
}

/* ============ FOOTER ============ */
.footer { border-top: 1px solid var(--border); padding: 3rem 2rem; }
.footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
.footer-copy { font-size: 0.82rem; color: var(--text-muted); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: var(--text-muted); font-size: 0.82rem; transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); }
.footer-social { display: flex; gap: 1rem; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary); transition: all 0.2s;
}
.footer-social a:hover { border-color: var(--accent); color: var(--accent); }
.footer-social svg { width: 16px; height: 16px; }

/* ============ SCROLL ANIMATIONS ============ */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .process-track { grid-template-columns: repeat(2, 1fr); gap: 2.5rem; }
  .process-track::before { display: none; }
  .testimonials-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: block; }
  .page-hero { padding: 7rem 1.5rem 3rem; }
  .services-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .portfolio-card.featured { grid-column: span 1; }
  .portfolio-card.featured .portfolio-preview { aspect-ratio: 16/9; }
  .process-track { grid-template-columns: 1fr; gap: 2rem; }
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .about-image-wrap { max-width: 400px; }
  .contact-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
  .section { padding: 4rem 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}