/* ── Design tokens ── */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f7;
  --bg-tertiary: #fafafa;
  --bg-card: #ffffff;
  --border: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.16);
  --border-focus: rgba(0, 90, 180, 0.4);
  --text-primary: #1d1d1f;
  --text-secondary: #6e6e73;
  --text-muted: #aeaeb2;
  --accent: #005ab4;
  --accent-hover: #004a96;
  --accent-light: rgba(0, 90, 180, 0.06);
  --accent-glow: rgba(0, 90, 180, 0.12);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.08), 0 4px 16px rgba(0, 0, 0, 0.04);
  --font-display: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --carousel-ratio: 16 / 9;
  --transition: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-slow: 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* ── Reset & base ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100dvh;
  line-height: 1.6;
  overflow-x: hidden;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea {
  font-family: inherit;
}

/* ── Header ── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem clamp(1.5rem, 5vw, 3rem);
  max-width: 980px;
  margin: 0 auto;
}

.header__eyebrow {
  display: block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.2rem;
}

.header__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 1.85rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text-primary);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lang-selector__select {
  appearance: none;
  -webkit-appearance: none;
  background: var(--bg-secondary) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236e6e73' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") no-repeat right 0.75rem center;
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 0.55rem 2rem 0.55rem 1rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition), background-color var(--transition);
}

.lang-selector__select:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background-color: var(--bg-primary);
}

.lang-selector__select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.header__instagram {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.header__instagram svg {
  width: 17px;
  height: 17px;
}

.header__instagram:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: var(--bg-secondary);
}

/* ── Main layout ── */
.main {
  position: relative;
  z-index: 1;
  max-width: 980px;
  margin: 0 auto;
  padding: 2.5rem clamp(1.5rem, 5vw, 3rem) 4rem;
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
}

/* ── Carousel ── */
.carousel-section {
  width: 100%;
}

.carousel {
  position: relative;
  width: 100%;
  aspect-ratio: var(--carousel-ratio);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--bg-secondary);
}

.carousel__track {
  position: relative;
  width: 100%;
  height: 100%;
}

.carousel__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: scale(1.03);
  transition: opacity 0.8s ease, transform 1.4s ease;
  pointer-events: none;
}

.carousel__slide.is-active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
  z-index: 1;
}

.carousel__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.carousel__overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    transparent 60%,
    rgba(0, 0, 0, 0.2) 100%
  );
}

.carousel__progress {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: rgba(255, 255, 255, 0.2);
}

.carousel__progress-bar {
  height: 100%;
  width: 0%;
  background: rgba(255, 255, 255, 0.8);
  transition: width 0.1s linear;
}

.carousel__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
}

.carousel:hover .carousel__nav,
.carousel:focus-within .carousel__nav {
  opacity: 1;
}

.carousel__nav svg {
  width: 18px;
  height: 18px;
}

.carousel__nav:hover {
  background: #ffffff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  transform: translateY(-50%) scale(1.05);
}

.carousel__nav--prev { left: 1rem; }
.carousel__nav--next { right: 1rem; }

.carousel__dots {
  position: absolute;
  bottom: 1.15rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: 0.45rem;
}

.carousel__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  border: none;
  padding: 0;
  transition: background var(--transition), transform var(--transition), width var(--transition), border-radius var(--transition);
}

.carousel__dot.is-active {
  background: #ffffff;
  width: 22px;
  border-radius: 4px;
}

/* ── Contact card ── */
.contact-section {
  width: 100%;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 3rem);
  box-shadow: var(--shadow-card);
}

.contact-card__label {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.65rem;
}

.contact-card__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 0.65rem;
  line-height: 1.15;
  color: var(--text-primary);
}

.contact-card__subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 400;
  line-height: 1.65;
  max-width: 52ch;
  margin-bottom: 2.25rem;
}

/* ── Form ── */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.35rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  background: var(--bg-secondary);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 0.9rem 1.1rem;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 400;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:hover,
.form-group textarea:hover {
  border-color: var(--border);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 0.75rem;
  padding: 0.9rem 2rem;
  background: var(--accent);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  align-self: flex-start;
}

.btn-submit__icon {
  width: 16px;
  height: 16px;
  transition: transform var(--transition);
}

.btn-submit:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 90, 180, 0.2);
}

.btn-submit:hover .btn-submit__icon {
  transform: translateX(3px);
}

.btn-submit:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ── Success state ── */
.form-success {
  text-align: center;
  padding: 2.5rem 1rem;
}

.form-success__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1.25rem;
  border-radius: 50%;
  background: var(--accent-light);
  border: 1.5px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.form-success__icon svg {
  width: 26px;
  height: 26px;
}

.form-success h3 {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.form-success p {
  color: var(--text-secondary);
  font-weight: 400;
  font-size: 0.95rem;
}

.contact-form.is-hidden {
  display: none;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

.form-error {
  color: #dc2626;
  font-size: 0.875rem;
  padding: 0.75rem 1rem;
  background: rgba(220, 38, 38, 0.05);
  border: 1px solid rgba(220, 38, 38, 0.15);
  border-radius: var(--radius-sm);
}

.form-error[hidden] {
  display: none;
}

/* ── Footer ── */
.footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 2rem 1.5rem 2.5rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  border-top: 1px solid var(--border);
  max-width: 980px;
  margin: 0 auto;
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .header__inner {
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1rem 1.25rem;
  }

  .header__actions {
    margin-left: auto;
  }

  .main {
    padding: 1.75rem 1.25rem 3rem;
    gap: 2.5rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .carousel {
    border-radius: var(--radius-md);
  }

  .carousel__nav {
    opacity: 1;
    width: 34px;
    height: 34px;
  }

  .carousel__nav svg {
    width: 16px;
    height: 16px;
  }

  .carousel__nav--prev { left: 0.5rem; }
  .carousel__nav--next { right: 0.5rem; }

  .btn-submit {
    width: 100%;
    align-self: stretch;
  }

  .contact-card {
    border-radius: var(--radius-md);
    padding: 1.75rem;
  }

  .footer {
    padding: 1.5rem 1.25rem 2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}