/* ---------- Tokens ---------- */
:root {
  --ink: #0e1512;
  --ink-soft: #4b5563;
  --paper: #fafaf8;
  --paper-alt: #f3f4f0;
  --line: #e6e7e2;
  --accent: #2f9e63;
  --accent-dark: #1f7a4c;
  --accent-soft: #e4f3ea;
  --dark: #0b1210;
  --dark-2: #101c16;
  --white: #ffffff;

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 12px 32px -12px rgba(14, 21, 18, 0.18);
  --container: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

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

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

p { margin: 0 0 1em; color: var(--ink-soft); }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.text-accent { color: var(--accent); }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--accent);
  color: var(--white);
}
.btn-primary:hover { background: var(--accent-dark); }

.btn-ghost {
  background: transparent;
  border-color: rgba(255,255,255,0.35);
  color: var(--white);
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.7); }

.btn-sm { padding: 10px 20px; font-size: 0.875rem; }

.btn-block { width: 100%; }

.btn-whatsapp {
  background: var(--dark-2);
  color: var(--white);
  margin-top: 20px;
}
.btn-whatsapp:hover { background: var(--ink); }

/* ---------- Progress bar ---------- */
.progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: var(--accent);
  z-index: 1000;
  transition: width 0.1s ease-out;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  padding: 18px 0;
  transition: background 0.3s ease, padding 0.3s ease, box-shadow 0.3s ease;
}
.site-header.is-scrolled {
  background: rgba(250, 250, 248, 0.85);
  backdrop-filter: blur(10px);
  padding: 12px 0;
  box-shadow: 0 1px 0 rgba(14,21,18,0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--white);
  transition: color 0.3s ease;
}
.site-header.is-scrolled .logo { color: var(--ink); }
.logo-mark { display: flex; color: var(--accent); }
.logo-word {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.main-nav {
  display: flex;
  gap: 32px;
}
.main-nav a {
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.3s ease;
}
.site-header.is-scrolled .main-nav a { color: var(--ink-soft); }
.main-nav a:hover { color: var(--accent); }
.site-header.is-scrolled .main-nav a:hover { color: var(--accent); }

.header-actions { display: flex; align-items: center; gap: 16px; }

.site-header:not(.is-scrolled) .btn-primary.btn-sm {
  background: var(--white);
  color: var(--dark);
}
.site-header:not(.is-scrolled) .btn-primary.btn-sm:hover {
  background: var(--accent);
  color: var(--white);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  width: 100%;
  height: 2px;
  background: var(--white);
  transition: background 0.3s ease;
}
.site-header.is-scrolled .nav-toggle span { background: var(--ink); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--dark);
  color: var(--white);
  padding: 180px 0 100px;
  overflow: hidden;
}

.hero-bg { position: absolute; inset: 0; }
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, black 40%, transparent 90%);
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
}
.hero-glow-1 {
  width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(47,158,99,0.55), transparent 70%);
  top: -180px; left: 50%;
  transform: translateX(-50%);
}
.hero-glow-2 {
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(60,130,255,0.25), transparent 70%);
  bottom: -220px; right: -80px;
}

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

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.75rem);
  color: var(--white);
}

.hero-sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.72);
  max-width: 560px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 64px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--white);
}
.stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
}
.stat-divider {
  width: 1px;
  height: 32px;
  background: rgba(255,255,255,0.14);
}

/* ---------- Sections ---------- */
.section { padding: 110px 0; }
.section-alt { background: var(--paper-alt); }

.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(1.8rem, 3.2vw, 2.5rem); }
.section-sub { font-size: 1.05rem; }

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

.service-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: transparent;
}

.service-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  margin-bottom: 20px;
}
.service-icon svg { width: 22px; height: 22px; }

.service-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.service-card p { font-size: 0.95rem; margin-bottom: 0; }

/* ---------- Approach ---------- */
.approach-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.approach-step { position: relative; padding-top: 8px; }
.approach-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 16px;
}
.approach-step h3 { font-size: 1.1rem; margin-bottom: 8px; }
.approach-step p { font-size: 0.92rem; margin-bottom: 0; }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 64px;
  align-items: center;
}
.about-media img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}
.about-name {
  font-size: 1.3rem;
  margin-top: 8px;
}
.about-content h2 { margin-bottom: 4px; }
.edu-list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.edu-list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.edu-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 7px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

/* ---------- CTA banner ---------- */
.cta-banner {
  background: var(--dark);
  color: var(--white);
  padding: 64px 0;
}
.cta-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.cta-banner-inner h2 {
  color: var(--white);
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: start;
}
.contact-info {
  margin: 28px 0 8px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-info-item { display: flex; flex-direction: column; gap: 2px; }
.contact-info-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}
.contact-info-item a { font-weight: 600; color: var(--ink); }
.contact-info-item a:hover { color: var(--accent); }

.contact-form {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
}
.form-row { margin-bottom: 18px; }
.form-row label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.form-row input,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--paper);
  resize: vertical;
  transition: border-color 0.2s ease;
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-note {
  font-size: 0.8rem;
  text-align: center;
  margin: 14px 0 0;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.65);
  padding: 56px 0 32px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1.2fr;
  gap: 32px;
}
.footer-logo { display: flex; align-items: center; gap: 8px; color: var(--accent); }
.footer-brand .logo-word { color: var(--white); font-size: 1.3rem; }
.footer-brand p { color: rgba(255,255,255,0.5); margin-top: 10px; font-size: 0.9rem; max-width: 260px; }
.footer-nav { display: flex; flex-direction: column; gap: 10px; }
.footer-nav a { font-size: 0.92rem; color: rgba(255,255,255,0.65); }
.footer-nav a:hover { color: var(--accent); }
.footer-meta p { color: rgba(255,255,255,0.55); font-size: 0.88rem; margin-bottom: 6px; }
.footer-meta a:hover { color: var(--accent); }
.copyright { margin-top: 14px !important; font-size: 0.8rem !important; color: rgba(255,255,255,0.4) !important; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .approach-grid { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .about-grid { grid-template-columns: 1fr; }
  .about-media { max-width: 320px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .main-nav {
    position: fixed;
    top: 64px; left: 16px; right: 16px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    flex-direction: column;
    padding: 12px;
    gap: 0;
    display: none;
  }
  .main-nav.is-open { display: flex; }
  .main-nav a { color: var(--ink); padding: 12px 14px; border-radius: var(--radius-sm); }
  .main-nav a:hover { background: var(--paper-alt); }
  .nav-toggle { display: flex; }
  .header-actions .btn-sm { display: none; }

  .hero { padding: 140px 0 72px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-stats { gap: 20px; }

  .section { padding: 72px 0; }
  .service-grid { grid-template-columns: 1fr; }
  .approach-grid { grid-template-columns: 1fr; }
  .cta-banner-inner { flex-direction: column; text-align: center; }
  .footer-inner { grid-template-columns: 1fr; text-align: left; }
}