/* ============================================================
   ESDAN — landing publica
   ============================================================ */

:root {
  --color-bg: #f7f5fa;
  --color-bg-alt: #efeaf6;
  --color-surface: #ffffff;
  --color-surface-2: #f3eff9;

  --color-text: #2b2438;
  --color-text-secondary: #6b5f7e;
  --color-text-faint: rgba(43, 36, 56, 0.5);

  --color-primary: #6e4e93;
  --color-primary-soft: #d9cbeb;
  --color-secondary: #9b7fbf;
  --color-secondary-soft: #e6dcf2;

  --color-border: rgba(110, 78, 147, 0.16);
  --color-border-soft: rgba(43, 36, 56, 0.08);

  --whatsapp: #25d366;

  --font-serif: 'Cormorant Garamond', 'Playfair Display', serif;
  --font-sans: 'Manrope', 'Inter', sans-serif;

  --radius: 22px;
  --radius-sm: 14px;
  --radius-pill: 999px;

  --shadow-sm: 0 2px 14px rgba(43, 36, 56, 0.07);
  --shadow-md: 0 16px 40px rgba(43, 36, 56, 0.14);

  --container: 1160px;

  color-scheme: light;
}

:root[data-theme='dark'] {
  --color-bg: #121212;
  --color-bg-alt: #181818;
  --color-surface: #1e1e1e;
  --color-surface-2: #262626;

  --color-text: #f2f2f2;
  --color-text-secondary: #b3b3b3;
  --color-text-faint: rgba(242, 242, 242, 0.5);

  --color-primary: #a98fd1;
  --color-primary-soft: rgba(169, 143, 209, 0.28);
  --color-secondary: #8c76b0;
  --color-secondary-soft: rgba(140, 118, 176, 0.24);

  --color-border: rgba(255, 255, 255, 0.12);
  --color-border-soft: rgba(255, 255, 255, 0.08);

  --shadow-sm: 0 2px 16px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 18px 48px rgba(0, 0, 0, 0.5);

  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text-secondary);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}

img, svg { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
  line-height: 1.15;
}

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

section { padding: 96px 0; position: relative; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* ---------- reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---------- type helpers ---------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.eyebrow::before { content: ''; width: 24px; height: 1px; background: var(--color-primary); }

.section-head { max-width: 620px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.section-title {
  font-size: clamp(1.9rem, 3.2vw, 2.6rem);
  margin-top: 14px;
}

.section-lede {
  margin-top: 16px;
  font-size: 1.02rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 15px 30px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

.btn-primary {
  background: linear-gradient(180deg, var(--color-primary), #4f3670);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
:root[data-theme='dark'] .btn-primary { background: linear-gradient(180deg, var(--color-primary), #6d4f96); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.btn-whatsapp {
  background: var(--whatsapp);
  color: #fff;
  box-shadow: 0 10px 24px rgba(37, 211, 102, 0.3);
}
.btn-whatsapp:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(37, 211, 102, 0.4); }

.btn-outline { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary); transform: translateY(-2px); }

/* ---------- navbar ---------- */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  padding: 20px 0;
  border-bottom: 1px solid transparent;
  transition: padding 0.3s ease, background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.site-header.scrolled {
  padding: 12px 0;
  background: rgba(247, 245, 250, 0.85);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--color-border-soft);
  box-shadow: var(--shadow-sm);
}
:root[data-theme='dark'] .site-header.scrolled { background: rgba(18, 18, 18, 0.85); }

.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }

.brand { display: flex; align-items: center; gap: 10px; }

.brand-mark {
  width: 38px; height: 38px;
  border-radius: var(--radius-sm);
  background: linear-gradient(160deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); font-weight: 600; font-size: 0.98rem;
  flex-shrink: 0;
}

.brand-word strong { font-family: var(--font-serif); font-size: 1.2rem; color: var(--color-text); }

.main-nav { display: flex; align-items: center; gap: 36px; }
.nav-links { display: flex; gap: 30px; }
.nav-links a {
  font-size: 0.86rem; font-weight: 600; color: var(--color-text-secondary);
  position: relative; padding: 4px 0; transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--color-text); }

.header-actions { display: flex; align-items: center; gap: 12px; }

.theme-toggle {
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid var(--color-border);
  background: transparent; color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; flex-shrink: 0;
}
.theme-toggle svg { width: 17px; height: 17px; }
.theme-icon--moon { display: none; }
:root[data-theme='dark'] .theme-icon--sun { display: none; }
:root[data-theme='dark'] .theme-icon--moon { display: block; }

.nav-toggle {
  display: none; width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid var(--color-border); background: transparent;
  align-items: center; justify-content: center; cursor: pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ''; display: block; width: 16px; height: 1px;
  background: var(--color-text); border-radius: 1px; position: relative;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle span::before { position: absolute; top: -5px; }
.nav-toggle span::after { position: absolute; top: 5px; }
.nav-toggle.active span { background: transparent; }
.nav-toggle.active span::before { top: 0; transform: rotate(45deg); background: var(--color-primary); }
.nav-toggle.active span::after { top: 0; transform: rotate(-45deg); background: var(--color-primary); }

.mobile-panel {
  position: fixed; inset: 0; z-index: 150; background: var(--color-bg);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 30px;
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: opacity 0.35s ease, transform 0.35s ease, visibility 0.35s;
}
.mobile-panel.open { opacity: 1; visibility: visible; transform: translateY(0); }
.mobile-panel a { font-family: var(--font-serif); font-size: 1.5rem; color: var(--color-text); }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
}

/* ---------- hero ---------- */

.hero {
  min-height: 92vh; min-height: 92svh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  padding: 130px 0 60px; text-align: center;
}

.hero-blobs { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.hero-blob { position: absolute; border-radius: 50%; opacity: 0.45; filter: blur(2px); animation: blob-float 12s ease-in-out infinite; }
.hero-blob-a { width: 380px; height: 380px; background: radial-gradient(circle at 30% 30%, var(--color-primary-soft), transparent 70%); top: -140px; left: -100px; }
.hero-blob-b { width: 300px; height: 300px; background: radial-gradient(circle at 30% 30%, var(--color-secondary-soft), transparent 70%); bottom: -120px; right: -80px; animation-delay: 3s; animation-direction: reverse; }

@keyframes blob-float { 0%, 100% { transform: translate(0,0); } 50% { transform: translate(-14px, 16px); } }
@media (prefers-reduced-motion: reduce) { .hero-blob { animation: none; } }

.hero-inner { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; }

.hero-kicker {
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--color-primary); margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-serif); font-weight: 600;
  font-size: clamp(3rem, 10vw, 6.4rem); line-height: 0.98; letter-spacing: -0.01em;
  color: var(--color-text);
}

.hero-tagline {
  margin-top: 22px; max-width: 520px; font-family: var(--font-serif); font-style: italic;
  font-size: clamp(1.2rem, 2vw, 1.5rem); color: var(--color-text-secondary);
}

.hero-disciplines {
  margin-top: 18px; font-size: 0.82rem; font-weight: 600; letter-spacing: 0.06em;
  color: var(--color-primary); max-width: 600px;
}

.hero-actions { margin-top: 38px; display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }

/* ---------- about ---------- */

.about { background: var(--color-bg-alt); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.about-copy p { font-size: 1rem; line-height: 1.8; color: var(--color-text-secondary); }
.about-quote {
  margin-top: 28px; padding-left: 22px; border-left: 1px solid var(--color-primary);
  font-family: var(--font-serif); font-style: italic; font-size: 1.2rem; color: var(--color-text);
}

/* ---------- disciplinas ---------- */

.disciplines-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }

.discipline-card {
  background: var(--color-surface); border: 1px solid var(--color-border-soft);
  border-radius: var(--radius); padding: 28px 24px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.discipline-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--color-border); }

.discipline-icon {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--color-primary-soft); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.discipline-icon svg { width: 20px; height: 20px; }

.discipline-card h3 { font-size: 1.15rem; }
.discipline-card p { margin-top: 8px; font-size: 0.9rem; line-height: 1.6; color: var(--color-text-secondary); }

/* ---------- contacto ---------- */

.contact-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 60px; }

.contact-info-block { margin-bottom: 30px; }
.contact-info-block h4 {
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--color-primary); margin-bottom: 8px;
}
.contact-info-block a, .contact-info-block p {
  font-family: var(--font-serif); font-size: 1.2rem; color: var(--color-text); margin: 0;
}
.contact-info-block a:hover { color: var(--color-primary); }

.contact-form { background: var(--color-surface); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-sm); }

.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 560px) { .form-row-2 { grid-template-columns: 1fr; } }

.form-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-field label { font-size: 0.74rem; font-weight: 700; color: var(--color-text-secondary); text-transform: uppercase; letter-spacing: 0.04em; }
.form-field input, .form-field select, .form-field textarea {
  border: 1px solid var(--color-border-soft); border-radius: var(--radius-sm);
  padding: 12px 14px; min-height: 46px; background: var(--color-bg);
  color: var(--color-text); font-family: inherit; font-size: 0.95rem; outline: none;
  transition: border-color 0.2s ease;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { border-color: var(--color-primary); }
.form-field textarea { min-height: 90px; resize: vertical; }

.form-note { margin-top: 14px; font-size: 0.85rem; text-align: center; }
.form-note.success { color: #5f9c7f; }
.form-note.error { color: #c15a5a; }

/* ---------- footer ---------- */

.site-footer { padding: 70px 0 26px; border-top: 1px solid var(--color-border-soft); text-align: center; }
.footer-brand { font-family: var(--font-serif); font-size: 1.5rem; color: var(--color-text); }
.footer-tagline { margin-top: 14px; font-family: var(--font-serif); font-style: italic; font-size: 1rem; color: var(--color-text-secondary); }
.footer-address { margin-top: 10px; font-size: 0.85rem; color: var(--color-text-faint); }
.footer-links { display: flex; justify-content: center; gap: 26px; margin-top: 26px; }
.footer-links a { font-size: 0.78rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-text-secondary); }
.footer-links a:hover { color: var(--color-primary); }
.footer-bottom {
  margin-top: 46px; padding-top: 24px; border-top: 1px solid var(--color-border-soft);
  font-size: 0.74rem; color: var(--color-text-faint); display: flex; flex-direction: column; gap: 6px;
}
.footer-bottom a { color: var(--color-text-faint); }
.footer-bottom a:hover { color: var(--color-primary); }

/* ---------- whatsapp float ---------- */

.wa-float {
  position: fixed; bottom: 26px; right: 26px; z-index: 180;
  display: flex; align-items: center; gap: 10px;
  background: var(--color-surface); border: 1px solid var(--color-border);
  color: var(--color-text); padding: 13px 20px 13px 14px;
  border-radius: var(--radius-pill); box-shadow: var(--shadow-md);
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.wa-float:hover { transform: translateY(-3px); border-color: var(--whatsapp); }
.wa-float svg { width: 20px; height: 20px; color: var(--whatsapp); flex-shrink: 0; }
.wa-float span { font-size: 0.78rem; font-weight: 700; white-space: nowrap; }

@media (max-width: 640px) {
  .wa-float span { display: none; }
  .wa-float { padding: 14px; bottom: 18px; right: 18px; }
}

/* ---------- responsive ---------- */

@media (max-width: 1024px) {
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .disciplines-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  section { padding: 66px 0; }
  .hero { padding: 120px 0 50px; }
  .disciplines-grid { grid-template-columns: 1fr; }
  .contact-form { padding: 22px; }
}