/* ============================================================
   ORPHEUS — Design System & Global Styles
   ============================================================
   Estética: Luxo clássico europeu — preto & ouro
   Tipografia: Cinzel (display) + Cormorant Garamond (body)
   Sem frameworks — CSS puro, mobile-first
   ============================================================ */

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

/* ---------- TOKENS ---------- */
:root {
  /* Cores */
  --bg-primary: #0A0A0A;
  --bg-secondary: #111111;
  --bg-tertiary: #1A1A1A;
  --gold-light: #F0C060;
  --gold-mid: #C9922A;
  --gold-dark: #8B5E10;
  --text-primary: #F5F0E8;
  --text-secondary: #A89070;
  --divider: #C9922A;
  --whatsapp-green: #25D366;
  --whatsapp-dark: #128C7E;
  --error: #E74C3C;
  --success: #2ECC71;

  /* Gradientes */
  --gradient-gold: linear-gradient(135deg, #8B5E10 0%, #C9922A 35%, #F0C060 60%, #C9922A 80%, #8B5E10 100%);
  --gradient-gold-horizontal: linear-gradient(90deg, transparent, #C9922A, transparent);
  --gradient-gold-subtle: linear-gradient(135deg, rgba(139,94,16,0.15), rgba(201,146,42,0.1), rgba(240,192,96,0.05));

  /* Tipografia */
  --font-display: 'Cinzel', serif;
  --font-body: 'Cormorant Garamond', serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --nav-height: 80px;
  --border-radius: 4px;

  /* Transitions */
  --transition-fast: 200ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 600ms ease;
}

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

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--gold-mid);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--gold-light);
}

ul, ol {
  list-style: none;
}

/* ---------- TYPOGRAPHY ---------- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 3vw, 1.6rem); }
h4 { font-size: clamp(1rem, 2vw, 1.25rem); }

.text-gold {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.lema {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-size: 0.85rem;
  color: var(--gold-mid);
}

/* ---------- LAYOUT ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container--narrow {
  max-width: var(--container-narrow);
}

section {
  padding: var(--space-2xl) 0;
  position: relative;
  overflow: hidden;
}

.section-alt {
  background-color: var(--bg-secondary);
}

/* ---------- DIVIDER ---------- */
.divider {
  width: 100%;
  height: 1px;
  background: var(--gradient-gold-horizontal);
  border: none;
  opacity: 0;
  transition: opacity 1s ease;
}

.divider.visible {
  opacity: 1;
}

/* ---------- DECORATIVE SILHOUETTES ---------- */
.silhouette {
  position: absolute;
  z-index: 0;
  opacity: 0.07;
  transition: opacity var(--transition-slow);
  pointer-events: none;
  fill: var(--gold-mid);
}

section:hover .silhouette {
  opacity: 0.13;
}

.silhouette--right {
  right: -2%;
  bottom: 10%;
}

.silhouette--left {
  left: -2%;
  bottom: 10%;
}

/* ---------- NAVBAR ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 var(--space-md);
  background: transparent;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.97);
  box-shadow: 0 2px 20px rgba(0,0,0,0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
}

.navbar__logo img {
  height: 45px;
  width: auto;
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.navbar__links a {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-primary);
  position: relative;
  padding: var(--space-xs) 0;
}

.navbar__links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold-mid);
  transition: width var(--transition-base);
}

.navbar__links a:hover {
  color: var(--gold-light);
}

.navbar__links a:hover::after {
  width: 100%;
}

/* ---------- NAV CTA ---------- */
.btn-nav-cta {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.6rem 1.4rem;
  border: 1px solid var(--gold-mid);
  color: var(--gold-mid);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-nav-cta:hover {
  background: var(--gold-mid);
  color: var(--bg-primary);
}

/* ---------- HAMBURGER (MOBILE) ---------- */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--gold-mid);
  transition: all var(--transition-base);
  transform-origin: center;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- MOBILE MENU ---------- */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(10, 10, 10, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.mobile-menu.active {
  display: flex;
  opacity: 1;
  pointer-events: all;
}

.mobile-menu a {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-primary);
  padding: var(--space-sm);
}

.mobile-menu a:hover {
  color: var(--gold-light);
}

/* ---------- HERO ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-height) + var(--space-xl)) var(--space-md) var(--space-xl);
  position: relative;
  background: var(--bg-primary);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1502602898657-3e91760cbb34?w=1920&q=80&auto=format');
  background-size: cover;
  background-position: center 40%;
  opacity: 0.35;
  transform: scale(1.05);
  animation: heroZoom 20s ease-in-out infinite alternate;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10,10,10,0.7) 0%, rgba(10,10,10,0.4) 40%, rgba(10,10,10,0.8) 100%),
    radial-gradient(ellipse 80% 50% at 50% 40%, rgba(201,146,42,0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 750px;
}

.hero__logo {
  width: 200px;
  margin: 0 auto var(--space-lg);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s ease forwards;
  filter: drop-shadow(0 4px 30px rgba(201, 146, 42, 0.3));
}

.hero__title {
  margin-bottom: var(--space-md);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s ease 0.2s forwards;
  text-shadow: 0 2px 40px rgba(0,0,0,0.5);
}

.hero__subtitle {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s ease 0.4s forwards;
  text-shadow: 0 2px 20px rgba(0,0,0,0.7);
}

.hero__lema {
  margin-bottom: var(--space-xl);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s ease 0.3s forwards;
}

.hero__buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s ease 0.6s forwards;
}

/* Hero scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  opacity: 0;
  animation: fadeInUp 0.8s ease 1s forwards;
}

.hero__scroll-indicator {
  width: 24px;
  height: 40px;
  border: 2px solid rgba(201, 146, 42, 0.4);
  border-radius: 12px;
  position: relative;
}

.hero__scroll-indicator::before {
  content: '';
  width: 4px;
  height: 8px;
  background: var(--gold-mid);
  border-radius: 2px;
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollBounce 2s ease-in-out infinite;
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.9rem 2rem;
  border: 1px solid var(--gold-mid);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn--primary {
  background: var(--gradient-gold);
  color: var(--bg-primary);
  border: none;
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(201, 146, 42, 0.3);
  color: var(--bg-primary);
}

.btn--secondary {
  background: transparent;
  color: var(--gold-mid);
}

.btn--secondary:hover {
  background: var(--gold-mid);
  color: var(--bg-primary);
  transform: translateY(-2px);
}

.btn--whatsapp {
  background: var(--whatsapp-green);
  color: #fff;
  border-color: var(--whatsapp-green);
  animation: pulse 2.5s ease-in-out infinite;
}

.btn--whatsapp:hover {
  background: var(--whatsapp-dark);
  border-color: var(--whatsapp-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.3);
  animation: none;
}

.btn--whatsapp svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* ---------- SECTION HEADERS ---------- */
.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
  position: relative;
  z-index: 1;
}

.section-header h2 {
  margin-bottom: var(--space-xs);
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 500px;
  margin: 0 auto;
}

/* ---------- ABOUT ---------- */
.about__text {
  max-width: 700px;
  margin: 0 auto var(--space-xl);
  text-align: center;
  font-size: 1.15rem;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  position: relative;
  z-index: 1;
}

.about__card {
  background: rgba(26, 26, 26, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(201, 146, 42, 0.12);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.about__card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(201, 146, 42, 0.03), transparent);
  transition: left 0.6s ease;
}

.about__card:hover::after {
  left: 100%;
}

.about__card:hover {
  border-color: rgba(201, 146, 42, 0.3);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4), 0 0 0 1px rgba(201, 146, 42, 0.1);
}

.about__card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-sm);
  fill: none;
  stroke: var(--gold-mid);
  stroke-width: 1.5;
  transition: transform var(--transition-base);
}

.about__card:hover .about__card-icon {
  transform: scale(1.1);
}

.about__card h3 {
  font-size: 1rem;
  margin-bottom: var(--space-xs);
}

.about__card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ---------- COURSES / SERVICES ---------- */
.courses__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  position: relative;
  z-index: 1;
}

.course-card {
  background: var(--bg-tertiary);
  border: 1px solid rgba(201, 146, 42, 0.1);
  padding: 0;
  text-align: center;
  transition: all 350ms ease;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Country photo header */
.course-card__image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease, filter 0.6s ease;
  filter: brightness(0.6) saturate(0.9);
}

.course-card:hover .course-card__image {
  transform: scale(1.08);
  filter: brightness(0.8) saturate(1.1);
}

.course-card__image-wrapper {
  position: relative;
  overflow: hidden;
  width: 100%;
  height: 200px;
  flex-shrink: 0;
}

.course-card__image-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 20%, rgba(10,10,10,0.85) 100%);
  pointer-events: none;
}

.course-card__body {
  padding: var(--space-md) var(--space-md) var(--space-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.course-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-gold);
  transform: scaleX(0);
  transition: transform var(--transition-base);
  z-index: 2;
}

.course-card:hover::before {
  transform: scaleX(1);
}

.course-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(201, 146, 42, 0.2);
  border-color: rgba(201, 146, 42, 0.25);
}

.course-card__monument {
  width: 40px;
  height: 50px;
  margin: -30px auto var(--space-xs);
  color: var(--gold-mid);
  fill: var(--gold-mid);
  opacity: 0.7;
  transition: all var(--transition-base);
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.5));
}

.course-card:hover .course-card__monument {
  opacity: 1;
  transform: translateY(-4px);
}

.course-card h3 {
  font-size: 1.15rem;
  margin-bottom: var(--space-xs);
}

.course-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: var(--space-md);
  flex: 1;
}

.course-card .btn {
  width: 100%;
  justify-content: center;
}

/* ---------- NUMBERS / STATS ---------- */
.numbers {
  background: var(--bg-secondary);
  border-top: 1px solid rgba(201, 146, 42, 0.15);
  border-bottom: 1px solid rgba(201, 146, 42, 0.15);
}

.numbers__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  text-align: center;
  position: relative;
  z-index: 1;
}

.numbers__item {
  padding: var(--space-md);
}

.numbers__value {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}

.numbers__label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  margin-top: var(--space-xs);
}

/* ---------- CTA SECTION ---------- */
.cta-section {
  text-align: center;
  background: var(--bg-primary);
  position: relative;
  padding: var(--space-3xl) 0;
}

.cta-section__bg {
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1488646953014-85cb44e25828?w=1920&q=80&auto=format');
  background-size: cover;
  background-position: center;
  opacity: 0.2;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, var(--bg-primary) 0%, rgba(10,10,10,0.6) 50%, var(--bg-primary) 100%),
    radial-gradient(ellipse 70% 70% at 50% 50%, rgba(201,146,42,0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

.cta-section h2 {
  margin-bottom: var(--space-sm);
  position: relative;
  z-index: 2;
}

.cta-section > .container > p {
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 2;
  text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

/* ---------- FOOTER ---------- */
.footer {
  background: var(--bg-secondary);
  padding: var(--space-xl) 0 var(--space-md);
  border-top: 1px solid rgba(201, 146, 42, 0.15);
  position: relative;
  overflow: hidden;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.footer__brand {
  position: relative;
  z-index: 1;
}

.footer__logo {
  height: 80px;
  width: auto;
  margin-bottom: var(--space-sm);
}

.footer__brand p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 300px;
}

.footer__nav {
  position: relative;
  z-index: 1;
}

.footer__nav h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold-mid);
  margin-bottom: var(--space-sm);
}

.footer__nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer__nav a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

.footer__nav a:hover {
  color: var(--gold-light);
}

.footer__contact {
  position: relative;
  z-index: 1;
}

.footer__contact h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold-mid);
  margin-bottom: var(--space-sm);
}

.footer__contact-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--space-xs);
}

.footer__contact-item svg {
  width: 16px;
  height: 16px;
  fill: var(--gold-mid);
  flex-shrink: 0;
}

.footer__bottom {
  border-top: 1px solid rgba(201, 146, 42, 0.1);
  padding-top: var(--space-md);
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
}

/* ---------- CONTACT PAGE ---------- */
.contact-page {
  padding-top: calc(var(--nav-height) + var(--space-xl));
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

.contact__info-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.contact__info-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(201, 146, 42, 0.25);
  flex-shrink: 0;
}

.contact__info-icon svg {
  width: 18px;
  height: 18px;
  fill: var(--gold-mid);
}

.contact__info-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gold-mid);
  margin-bottom: 2px;
}

.contact__info-value {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ---------- FORM ---------- */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form__label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gold-mid);
}

.form__input,
.form__textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-tertiary);
  border: 1px solid rgba(201, 146, 42, 0.15);
  padding: 0.8rem 1rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  width: 100%;
}

.form__input:focus,
.form__textarea:focus {
  border-color: var(--gold-mid);
  box-shadow: 0 0 0 3px rgba(201, 146, 42, 0.1);
}

.form__textarea {
  min-height: 140px;
  resize: vertical;
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: rgba(168, 144, 112, 0.4);
}

.form__feedback {
  padding: 0.8rem 1rem;
  font-size: 0.9rem;
  display: none;
}

.form__feedback--success {
  display: block;
  background: rgba(46, 204, 113, 0.1);
  border: 1px solid rgba(46, 204, 113, 0.3);
  color: var(--success);
}

.form__feedback--error {
  display: block;
  background: rgba(231, 76, 60, 0.1);
  border: 1px solid rgba(231, 76, 60, 0.3);
  color: var(--error);
}

/* ---------- WHATSAPP BLOCK (Contact page) ---------- */
.whatsapp-block {
  text-align: center;
  padding: var(--space-xl);
  background: var(--bg-tertiary);
  border: 1px solid rgba(201, 146, 42, 0.1);
  margin-top: var(--space-lg);
}

.whatsapp-block p {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  font-size: 1.1rem;
}

/* ---------- FADE-IN ANIMATION ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- KEYFRAMES ---------- */
@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4);
  }
  50% {
    box-shadow: 0 0 0 12px rgba(37, 211, 102, 0);
  }
}

@keyframes heroZoom {
  0% { transform: scale(1.05); }
  100% { transform: scale(1.15); }
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
  50% { transform: translateX(-50%) translateY(14px); opacity: 0.3; }
}

/* ---------- RESPONSIVE: TABLET (768px+) ---------- */
@media (min-width: 768px) {
  .about__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .numbers__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer__inner {
    grid-template-columns: 2fr 1fr 1fr;
  }

  .contact__grid {
    grid-template-columns: 1fr 1.2fr;
  }
}

/* ---------- RESPONSIVE: DESKTOP (1200px+) ---------- */
@media (min-width: 1200px) {
  section {
    padding: var(--space-3xl) 0;
  }

  .courses__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .hero__logo {
    width: 240px;
  }

  .about__card {
    padding: var(--space-xl);
  }
}

/* ---------- MOBILE (<768px) ---------- */
@media (max-width: 767px) {
  .navbar__links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    padding-top: calc(var(--nav-height) + var(--space-lg));
  }

  .hero__logo {
    width: 150px;
  }

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.75rem;
    width: 100%;
    justify-content: center;
  }

  .hero__buttons {
    flex-direction: column;
    align-items: center;
  }
}

/* ---------- PRINT ---------- */
@media print {
  @page {
    size: A4;
    margin: 2.5cm;
  }

  .navbar,
  .hamburger,
  .mobile-menu,
  .btn--whatsapp,
  .hero__buttons,
  .cta-section,
  .silhouette {
    display: none !important;
  }

  body {
    color: #222;
    background: #fff;
    font-size: 12pt;
  }

  h1, h2, h3, h4, h5 {
    color: #111;
  }

  .text-gold {
    -webkit-text-fill-color: #8B5E10;
    color: #8B5E10;
  }

  section {
    padding: 1cm 0;
    page-break-inside: avoid;
  }

  .course-card,
  .about__card {
    border: 1px solid #ccc;
    break-inside: avoid;
  }
}