/* ============================================================
   ADRIANA REID — Design System & Global Styles
   Premium Editorial Minimalist
   ============================================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400;1,600&family=Montserrat:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* ============================================================
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================================ */
:root {
  /* Colors */
  --color-primary:    #0B1D33;
  --color-accent:     #B89765;
  --color-accent-light: #D4B483;
  --color-bg:         #F7F5F0;
  --color-text:       #1A1A1A;
  --color-text-light: #555555;
  --color-white:      #FFFFFF;
  --color-border:     rgba(184, 151, 101, 0.3);
  --color-dark-overlay: rgba(11, 29, 51, 0.85);

  /* Typography */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-nav:     'Montserrat', sans-serif;
  --font-body:    'Inter', sans-serif;

  /* Spacing */
  --section-padding: 100px 0;
  --container-max: 1240px;
  --container-padding: 0 40px;

  /* Transitions */
  --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-fast: all 0.2s ease;

  /* Shadows */
  --shadow-card: 0 8px 40px rgba(11, 29, 51, 0.10);
  --shadow-hover: 0 20px 60px rgba(11, 29, 51, 0.18);
  --shadow-gold: 0 4px 24px rgba(184, 151, 101, 0.25);
}

/* ============================================================
   2. RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul { list-style: none; }

/* ============================================================
   3. UTILITY CLASSES
   ============================================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--container-padding);
}

.section { padding: var(--section-padding); }

.section--dark {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.section--white {
  background-color: var(--color-white);
}

.text-center { text-align: center; }
.text-right  { text-align: right; }

.gold-line {
  display: block;
  width: 60px;
  height: 2px;
  background-color: var(--color-accent);
  margin: 20px auto;
}

.gold-line--left {
  margin: 20px 0;
}

/* ============================================================
   4. TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.2;
  color: var(--color-primary);
}

.section--dark h1,
.section--dark h2,
.section--dark h3 {
  color: var(--color-white);
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 700; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 600; }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }

p { font-size: 1rem; line-height: 1.8; color: var(--color-text-light); }

.section--dark p { color: rgba(255,255,255,0.75); }

.label {
  font-family: var(--font-nav);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
}

/* ============================================================
   5. BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-nav);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 16px 36px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.btn--primary:hover {
  background-color: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}

.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border: 1.5px solid var(--color-accent);
}

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

.btn--outline-white {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255,255,255,0.5);
}

.btn--outline-white:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ============================================================
   6. NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 28px 0;
  transition: var(--transition);
}

.nav.scrolled {
  background: rgba(11, 29, 51, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 16px 0;
  box-shadow: 0 2px 30px rgba(0,0,0,0.2);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--container-padding);
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.02em;
}

.nav__logo span {
  color: var(--color-accent);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav__links a {
  font-family: var(--font-nav);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  transition: var(--transition-fast);
  position: relative;
  padding-bottom: 4px;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: var(--transition-fast);
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--color-accent);
}

.nav__links a:hover::after,
.nav__links a.active::after {
  width: 100%;
}

.nav__cta {
  font-family: var(--font-nav);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary) !important;
  background: var(--color-accent);
  padding: 10px 24px;
  transition: var(--transition);
}

.nav__cta:hover {
  background: var(--color-accent-light);
  transform: none;
}

.nav__cta::after { display: none !important; }

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  transition: var(--transition);
}

/* ============================================================
   7. HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--color-primary);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0B1D33 0%, #152d50 50%, #0a1828 100%);
}

.hero__bg-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(184,151,101,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184,151,101,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero__image-wrapper {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 52%;
  height: 100%;
  overflow: hidden;
}

.hero__image-wrapper::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, var(--color-primary) 0%, rgba(11,29,51,0.6) 35%, transparent 65%);
  z-index: 1;
}

.hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  filter: grayscale(15%) contrast(1.05);
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 48%;
  padding: 120px 48px 80px 0;
}

.hero__label {
  display: inline-block;
  font-family: var(--font-nav);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 24px;
}

.hero__title {
  font-size: clamp(3rem, 5.5vw, 5.5rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.05;
  margin-bottom: 8px;
}

.hero__title em {
  font-style: italic;
  color: var(--color-accent);
}

.hero__subtitle {
  font-family: var(--font-nav);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-bottom: 32px;
}

.hero__desc {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  max-width: 480px;
  margin-bottom: 48px;
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.hero__scroll span {
  font-family: var(--font-nav);
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
}

.hero__scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.1); }
}

/* ============================================================
   8. MEDIA LOGOS STRIP
   ============================================================ */
.media-strip {
  background: var(--color-white);
  border-top: 1px solid rgba(11,29,51,0.08);
  border-bottom: 1px solid rgba(11,29,51,0.08);
  padding: 32px 0;
}

.media-strip__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 64px;
  flex-wrap: wrap;
}

.media-strip__label {
  font-family: var(--font-nav);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-light);
  opacity: 0.7;
}

.media-logo {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  opacity: 0.45;
  transition: var(--transition-fast);
  letter-spacing: 0.05em;
}

.media-logo:hover { opacity: 0.9; }

/* ============================================================
   9. STATS / NUMBERS SECTION
   ============================================================ */
.stats {
  background: var(--color-primary);
  padding: 80px 0;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(184,151,101,0.2);
}

.stat-item {
  background: var(--color-primary);
  padding: 48px 32px;
  text-align: center;
  transition: var(--transition);
}

.stat-item:hover {
  background: rgba(255,255,255,0.03);
}

.stat-item__number {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 4vw, 3.5rem);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 12px;
}

.stat-item__label {
  font-family: var(--font-nav);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
}

/* ============================================================
   10. ABOUT / SECTION HEADER
   ============================================================ */
.section-header {
  margin-bottom: 64px;
}

.section-header--center { text-align: center; }
.section-header--center .gold-line { margin: 20px auto; }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__image-wrap {
  position: relative;
}

.about__image-wrap::before {
  content: '';
  position: absolute;
  top: -16px;
  left: -16px;
  right: 16px;
  bottom: 16px;
  border: 2px solid var(--color-accent);
  opacity: 0.4;
  z-index: 0;
}

.about__image-wrap img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 560px;
  object-fit: cover;
  object-position: top;
}

.about__content {
  padding: 20px 0;
}

.about__content p {
  margin-bottom: 24px;
}

.about__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 32px 0;
}

.tag {
  font-family: var(--font-nav);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 8px 16px;
  border: 1px solid var(--color-border);
  color: var(--color-accent);
  transition: var(--transition-fast);
}

.tag:hover {
  background: var(--color-accent);
  color: var(--color-primary);
  border-color: var(--color-accent);
}

/* ============================================================
   11. BLOG CARDS
   ============================================================ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.blog-card {
  background: var(--color-white);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.blog-card__image {
  position: relative;
  overflow: hidden;
  height: 240px;
}

.blog-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.blog-card:hover .blog-card__image img {
  transform: scale(1.06);
}

.blog-card__category {
  position: absolute;
  top: 16px;
  left: 16px;
  font-family: var(--font-nav);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  background: var(--color-accent);
  color: var(--color-primary);
  padding: 5px 12px;
}

.blog-card__body {
  padding: 28px;
}

.blog-card__date {
  font-family: var(--font-nav);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.blog-card__title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.35;
  margin-bottom: 12px;
  transition: var(--transition-fast);
}

.blog-card:hover .blog-card__title {
  color: var(--color-accent);
}

.blog-card__excerpt {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card__link {
  font-family: var(--font-nav);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-fast);
}

.blog-card__link:hover { gap: 14px; }

/* ============================================================
   12. CURSOS / GATEWAY CARD
   ============================================================ */
.cursos-section {
  background: var(--color-primary);
  padding: var(--section-padding);
}

.cursos-card {
  max-width: 800px;
  margin: 0 auto;
  border: 1px solid rgba(184,151,101,0.3);
  padding: 80px 64px;
  text-align: center;
  position: relative;
  transition: var(--transition);
  cursor: pointer;
}

.cursos-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(184,151,101,0.05) 0%, transparent 100%);
  opacity: 0;
  transition: var(--transition);
}

.cursos-card:hover::before { opacity: 1; }
.cursos-card:hover { border-color: rgba(184,151,101,0.7); }

.cursos-card__icon {
  width: 64px;
  height: 64px;
  border: 1px solid var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 32px;
  font-size: 1.6rem;
}

.cursos-card__title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  color: var(--color-white);
  margin-bottom: 16px;
}

.cursos-card__subtitle {
  font-family: var(--font-nav);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 24px;
}

.cursos-card__desc {
  font-size: 1rem;
  color: rgba(255,255,255,0.7);
  max-width: 480px;
  margin: 0 auto 48px;
  line-height: 1.8;
}

/* ============================================================
   13. TIMELINE (História)
   ============================================================ */
.timeline {
  position: relative;
  padding: 20px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--color-border);
  transform: translateX(-50%);
}

.timeline-item {
  display: grid;
  grid-template-columns: 1fr 60px 1fr;
  gap: 0;
  margin-bottom: 64px;
  align-items: start;
}

.timeline-item:nth-child(odd) .timeline-content {
  grid-column: 1;
  text-align: right;
  padding-right: 48px;
}

.timeline-item:nth-child(odd) .timeline-empty {
  grid-column: 3;
}

.timeline-item:nth-child(even) .timeline-content {
  grid-column: 3;
  text-align: left;
  padding-left: 48px;
}

.timeline-item:nth-child(even) .timeline-empty {
  grid-column: 1;
}

.timeline-dot {
  grid-column: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 8px;
}

.timeline-dot__circle {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 1px var(--color-accent);
  flex-shrink: 0;
}

.timeline-year {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.05em;
  margin-top: 8px;
  white-space: nowrap;
}

.timeline-content h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.timeline-content p {
  font-size: 0.9rem;
  line-height: 1.75;
}

.timeline-content .label {
  margin-bottom: 8px;
}

/* ============================================================
   14. CONTACT SECTION
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}

.contact-info h2 {
  margin-bottom: 24px;
}

.contact-info p {
  margin-bottom: 40px;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-detail__icon {
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-size: 1rem;
  flex-shrink: 0;
  transition: var(--transition-fast);
}

.contact-detail:hover .contact-detail__icon {
  background: var(--color-accent);
  color: var(--color-primary);
}

.contact-detail__text strong {
  display: block;
  font-family: var(--font-nav);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.contact-detail__text span {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-nav);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  border: 1.5px solid var(--color-border);
  padding: 12px 20px;
  transition: var(--transition);
  margin-top: 16px;
}

.social-link:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-primary);
  transform: translateY(-2px);
}

/* Contact Form */
.contact-form {
  background: var(--color-white);
  padding: 48px;
  box-shadow: var(--shadow-card);
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-family: var(--font-nav);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid rgba(11,29,51,0.15);
  background: var(--color-bg);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-text);
  outline: none;
  transition: var(--transition-fast);
  appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  background: var(--color-white);
}

.form-group textarea {
  height: 140px;
  resize: vertical;
}

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

.form-feedback {
  display: none;
  padding: 14px 20px;
  margin-top: 16px;
  font-family: var(--font-nav);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  font-weight: 600;
}

.form-feedback--success {
  background: rgba(184,151,101,0.1);
  border-left: 3px solid var(--color-accent);
  color: var(--color-primary);
}

.form-feedback--error {
  background: rgba(200,50,50,0.08);
  border-left: 3px solid #c83232;
  color: #c83232;
}

/* ============================================================
   15. FOOTER
   ============================================================ */
.footer {
  background: var(--color-primary);
  padding: 64px 0 32px;
  color: rgba(255,255,255,0.6);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 48px;
}

.footer__brand h3 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  color: var(--color-white);
  margin-bottom: 12px;
}

.footer__brand p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
  max-width: 280px;
}

.footer__nav h4 {
  font-family: var(--font-nav);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.footer__nav ul li {
  margin-bottom: 10px;
}

.footer__nav ul li a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  transition: var(--transition-fast);
}

.footer__nav ul li a:hover { color: var(--color-accent); }

.footer__divider {
  height: 1px;
  background: rgba(184,151,101,0.15);
  margin-bottom: 32px;
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
}

.footer__bottom span { color: var(--color-accent); }

/* ============================================================
   16. BLOG FILTERS
   ============================================================ */
.blog-filters {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.filter-btn {
  font-family: var(--font-nav);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 9px 20px;
  border: 1px solid rgba(11,29,51,0.2);
  background: transparent;
  color: var(--color-text-light);
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* ============================================================
   17. PAGE HERO (inner pages)
   ============================================================ */
.page-hero {
  background: var(--color-primary);
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(184,151,101,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184,151,101,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

.page-hero h1 {
  color: var(--color-white);
  position: relative;
  z-index: 1;
}

.page-hero p {
  color: rgba(255,255,255,0.6);
  max-width: 540px;
  margin: 20px auto 0;
  position: relative;
  z-index: 1;
}

/* ============================================================
   18. SCROLL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.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; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================================
   19. RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  :root { --container-padding: 0 28px; }

  .hero__content { max-width: 55%; padding-right: 32px; }
  .hero__image-wrapper { width: 50%; }
  .about-grid { gap: 48px; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { gap: 48px; }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --container-padding: 0 20px; }

  h1 { font-size: 2.4rem; }
  h2 { font-size: 1.8rem; }

  .nav__links { display: none; }
  .nav__hamburger { display: flex; }

  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0;
    background: var(--color-primary);
    align-items: center;
    justify-content: center;
    gap: 32px;
    z-index: 999;
  }

  .nav__links.open a {
    font-size: 1rem;
    letter-spacing: 0.2em;
  }

  .hero {
    flex-direction: column;
    align-items: flex-start;
    min-height: 100vh;
  }

  .hero__content {
    width: 100%;
    max-width: 100%;
    padding: 140px 20px 440px;
  }

  .hero__image-wrapper {
    width: 100%;
    height: 420px;
    bottom: 0;
    top: auto;
  }

  .hero__image-wrapper::before {
    background: linear-gradient(to bottom, var(--color-primary) 0%, transparent 40%);
  }

  .about-grid { grid-template-columns: 1fr; }
  .about__image-wrap::before { display: none; }
  .about__image-wrap img { height: 380px; }

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

  .stats__grid { grid-template-columns: repeat(2, 1fr); }

  .contact-grid { grid-template-columns: 1fr; }
  .contact-form { padding: 28px; }
  .form-row { grid-template-columns: 1fr; }

  .timeline::before { left: 20px; }
  .timeline-item {
    grid-template-columns: 40px 1fr;
    grid-template-rows: auto;
  }

  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    grid-column: 2;
    text-align: left;
    padding: 0 0 0 24px;
  }

  .timeline-item:nth-child(odd) .timeline-empty,
  .timeline-item:nth-child(even) .timeline-empty {
    display: none;
  }

  .timeline-dot { grid-column: 1; }

  .footer__grid { grid-template-columns: 1fr; gap: 40px; }
  .footer__bottom { flex-direction: column; gap: 12px; text-align: center; }

  .cursos-card { padding: 48px 28px; }

  .media-strip__inner { gap: 32px; }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .hero__title { font-size: 2.2rem; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   20. BLOG POST PAGE
   ============================================================ */
.post-hero {
  background: var(--color-primary);
  padding: 160px 0 0;
  position: relative;
}

.post-hero__inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 40px 80px;
}

.post-hero__category {
  display: inline-block;
  font-family: var(--font-nav);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.post-hero h1 {
  color: var(--color-white);
  font-size: clamp(1.8rem, 4vw, 3rem);
  margin-bottom: 20px;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.post-meta span {
  font-family: var(--font-nav);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.5);
}

.post-cover {
  width: 100%;
  max-height: 520px;
  object-fit: cover;
}

.post-body {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 40px;
}

.post-body p { margin-bottom: 24px; font-size: 1.05rem; }
.post-body h2 { margin: 48px 0 20px; font-size: 1.6rem; }
.post-body h3 { margin: 36px 0 16px; }
.post-body blockquote {
  border-left: 3px solid var(--color-accent);
  padding: 20px 32px;
  margin: 40px 0;
  background: rgba(184,151,101,0.06);
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-style: italic;
  color: var(--color-primary);
}

/* ============================================================
   21. LOADING / PAGE TRANSITION
   ============================================================ */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--color-primary);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.page-loader__logo {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--color-white);
  letter-spacing: 0.05em;
}

.page-loader__logo span { color: var(--color-accent); }

.page-loader__bar {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: var(--color-accent);
  animation: loadBar 1s ease forwards;
}

@keyframes loadBar {
  to { width: 100%; }
}