/* ============================================
   ARSES Contact Us — Page Styles
   Premium contact page for global marketplace
   ============================================ */

/* ---- Page base ---- */

.cu {
  padding-top: var(--header-height);
}

.cu-text-gradient {
  background: linear-gradient(135deg, var(--primary) 0%, #37b8e0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.cu .section {
  position: relative;
}

.cu .section__header p {
  max-width: 560px;
  margin: 0 auto;
}

/* ============================================================
   SECTION 1 — HERO
   ============================================================ */

.cu-hero {
  position: relative;
  overflow: hidden;
  padding: var(--space-5) 0 var(--space-6);
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
}

.cu-hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.cu-hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
}

.cu-hero__glow--a {
  width: 520px;
  height: 520px;
  top: -120px;
  right: -80px;
  background: radial-gradient(circle, rgba(31, 122, 92, 0.22) 0%, transparent 70%);
}

.cu-hero__glow--b {
  width: 400px;
  height: 400px;
  bottom: -60px;
  left: -100px;
  background: radial-gradient(circle, rgba(55, 184, 224, 0.16) 0%, transparent 70%);
}

.cu-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(31, 122, 92, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31, 122, 92, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 20%, transparent 100%);
}

.cu-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-5);
  align-items: center;
}

.cu-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.cu-hero__badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
  animation: cu-pulse 2.4s ease-in-out infinite;
}

@keyframes cu-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.cu-hero__title {
  margin: var(--space-2) 0;
  max-width: 16ch;
  font-size: clamp(2.25rem, 5.5vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.cu-hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.7;
  max-width: 52ch;
  margin-bottom: var(--space-3);
}

/* Primary contact card */

.cu-hero__contact-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  max-width: 520px;
}

.cu-hero__contact-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  flex-shrink: 0;
}

.cu-hero__contact-info {
  flex: 1;
  min-width: 140px;
}

.cu-hero__contact-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 2px;
}

.cu-hero__contact-email {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--primary);
  transition: color var(--transition);
}

.cu-hero__contact-email:hover {
  color: var(--primary-dark);
}

/* Network visual */

.cu-hero__visual {
  display: flex;
  justify-content: center;
}

.cu-network {
  position: relative;
  width: 100%;
  max-width: 520px;
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.65);
}

.cu-network__svg {
  width: 100%;
  height: auto;
  display: block;
}

.cu-network__lines path {
  stroke-dasharray: 6 8;
  animation: cu-line-flow 12s linear infinite;
}

@keyframes cu-line-flow {
  to { stroke-dashoffset: -56; }
}

.cu-network__dots circle {
  animation: cu-dot-breathe 3s ease-in-out infinite;
}

.cu-network__dots circle:nth-child(odd) {
  animation-delay: 0.6s;
}

@keyframes cu-dot-breathe {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.cu-network__ai {
  animation: cu-ai-glow 4s ease-in-out infinite;
}

@keyframes cu-ai-glow {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.85; }
}

.cu-network__band {
  animation: cu-band-fade 3s ease-in-out infinite;
}

@keyframes cu-band-fade {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Floating chips */

.cu-chip {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--primary-dark);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(31, 122, 92, 0.12);
  border-radius: 100px;
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
  animation: cu-chip-float 5s ease-in-out infinite;
}

.cu-chip__icon {
  font-size: 0.75rem;
  opacity: 0.7;
}

.cu-chip--1 { top: 8%; left: -4%; animation-delay: 0s; }
.cu-chip--2 { top: 20%; right: -6%; animation-delay: 1.2s; }
.cu-chip--3 { bottom: 28%; left: -8%; animation-delay: 2.4s; }
.cu-chip--4 { bottom: 12%; right: -4%; animation-delay: 0.8s; }

@keyframes cu-chip-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@media (min-width: 768px) {
  .cu-hero__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }

  .cu-hero__contact-card {
    padding: var(--space-3) var(--space-4);
  }
}

/* ============================================================
   SECTION 2 — CONTACT OPTIONS
   ============================================================ */

.cu-options {
  background: var(--card);
}

.cu-options__grid {
  display: grid;
  gap: var(--space-3);
}

.cu-option-card {
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.cu-option-card:hover,
.cu-option-card.is-hovered {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(31, 122, 92, 0.2);
}

.cu-option-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  margin-bottom: var(--space-2);
}

.cu-option-card__icon--tech {
  background: rgba(55, 184, 224, 0.12);
  color: #1a8aad;
}

.cu-option-card h3 {
  font-size: 1.0625rem;
  color: var(--text);
  margin-bottom: var(--space-1);
}

.cu-option-card p {
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: var(--space-2);
}

.cu-option-card__email {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  transition: color var(--transition);
}

.cu-option-card__email:hover {
  color: var(--primary-dark);
}

.cu-option-card__email::before {
  content: '';
  display: inline-block;
  width: 16px;
  height: 16px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none'%3E%3Crect x='2' y='4' width='20' height='16' rx='3' stroke='%231f7a5c' stroke-width='1.6'/%3E%3Cpath d='M2 7l10 7 10-7' stroke='%231f7a5c' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-size: contain;
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .cu-options__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .cu-options__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ============================================================
   SECTION 3 — CONTACT FORM
   ============================================================ */

.cu-form-section {
  background: linear-gradient(180deg, var(--background) 0%, #eef2f0 100%);
}

.cu-form-card {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-4);
  border-radius: var(--radius-lg);
}

.cu-form-card__helper {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--muted);
  padding: var(--space-2) var(--space-3);
  background: rgba(31, 122, 92, 0.06);
  border-radius: 12px;
  border-left: 3px solid var(--primary);
  margin-bottom: var(--space-4);
}

.cu-form-card__helper a {
  color: var(--primary);
  font-weight: 600;
}

.cu-form-card__helper a:hover {
  color: var(--primary-dark);
}

/* Form fields */

.cu-form__row {
  display: grid;
  gap: var(--space-3);
}

.cu-form__group {
  margin-bottom: var(--space-3);
}

.cu-form__label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.cu-form__required {
  color: #dc2626;
  font-weight: 500;
}

.cu-form__optional {
  font-weight: 400;
  color: var(--muted);
  font-size: 0.8125rem;
}

.cu-form__input,
.cu-form__select,
.cu-form__textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font);
  font-size: 0.9375rem;
  color: var(--text);
  background: var(--card);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.cu-form__input::placeholder,
.cu-form__textarea::placeholder {
  color: #9ca3af;
}

.cu-form__input:focus,
.cu-form__select:focus,
.cu-form__textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(31, 122, 92, 0.12);
}

.cu-form__input.is-error,
.cu-form__select.is-error,
.cu-form__textarea.is-error {
  border-color: #dc2626;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.cu-form__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none'%3E%3Cpath d='M6 9l6 6 6-6' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
  cursor: pointer;
}

.cu-form__textarea {
  resize: vertical;
  min-height: 120px;
}

.cu-form__error {
  display: block;
  font-size: 0.8125rem;
  color: #dc2626;
  margin-top: 6px;
  min-height: 0;
}

.cu-form__error:not(:empty) {
  min-height: 1.2em;
}

/* Privacy & consent */

.cu-form__privacy {
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--muted);
  margin-bottom: var(--space-3);
  padding: var(--space-2);
  background: rgba(0, 0, 0, 0.02);
  border-radius: 10px;
}

.cu-form__privacy a {
  color: var(--primary);
  font-weight: 500;
}

.cu-form__privacy a:hover {
  color: var(--primary-dark);
}

.cu-form__consent {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  margin-bottom: var(--space-4);
  padding: var(--space-2);
  border-radius: 10px;
  transition: background var(--transition);
}

.cu-form__consent:hover {
  background: rgba(31, 122, 92, 0.04);
}

.cu-form__checkbox {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--primary);
  flex-shrink: 0;
  cursor: pointer;
}

.cu-form__consent-text {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text);
}

/* Submit */

.cu-form__actions {
  display: flex;
  justify-content: flex-start;
}

.cu-form__actions .btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.cu-form__actions .btn:disabled:hover {
  background: var(--primary);
  transform: none;
  box-shadow: none;
}

/* Inline notice */

.cu-form__notice {
  margin-top: var(--space-3);
  padding: var(--space-2) var(--space-3);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--primary-dark);
  background: var(--primary-light);
  border: 1px solid rgba(31, 122, 92, 0.2);
  border-radius: 12px;
}

.cu-form__notice[hidden] {
  display: none;
}

@media (min-width: 768px) {
  .cu-form-card {
    padding: var(--space-5);
  }

  .cu-form__row {
    grid-template-columns: 1fr 1fr;
  }
}

/* ============================================================
   SECTION 4 — HELPFUL LINKS
   ============================================================ */

.cu-links__grid {
  display: grid;
  gap: var(--space-3);
}

.cu-link-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--space-4);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  text-decoration: none;
}

.cu-link-card:hover,
.cu-link-card.is-hovered {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(31, 122, 92, 0.2);
}

.cu-link-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  margin-bottom: var(--space-2);
}

.cu-link-card h3 {
  font-size: 1.0625rem;
  color: var(--text);
  margin-bottom: var(--space-1);
}

.cu-link-card p {
  font-size: 0.875rem;
  line-height: 1.7;
  flex: 1;
}

.cu-link-card__arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--primary-light);
  color: var(--primary);
  margin-top: var(--space-2);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.cu-link-card:hover .cu-link-card__arrow,
.cu-link-card.is-hovered .cu-link-card__arrow {
  background: var(--primary);
  color: #fff;
  transform: translateX(2px);
}

@media (min-width: 768px) {
  .cu-links__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .cu-links__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ============================================================
   SECTION 5 — TRUST & TRANSPARENCY
   ============================================================ */

.cu-trust {
  background: var(--card);
}

.cu-trust__content {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.cu-trust__item {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
  padding: var(--space-3);
  background: var(--background);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: border-color var(--transition);
}

.cu-trust__item:hover {
  border-color: rgba(31, 122, 92, 0.15);
}

.cu-trust__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  flex-shrink: 0;
}

.cu-trust__item p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--muted);
  padding-top: 4px;
}

/* ============================================================
   SECTION 6 — FINAL CTA
   ============================================================ */

.cu-cta {
  padding-bottom: var(--space-6);
}

.cu-cta__card {
  position: relative;
  overflow: hidden;
  padding: var(--space-5) var(--space-3);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, #228b63 100%);
  text-align: center;
}

.cu-cta__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
}

.cu-cta__glow--a {
  width: 300px;
  height: 300px;
  top: -100px;
  right: -60px;
  background: rgba(55, 184, 224, 0.25);
}

.cu-cta__glow--b {
  width: 250px;
  height: 250px;
  bottom: -80px;
  left: -40px;
  background: rgba(255, 255, 255, 0.08);
}

.cu-cta__content {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 auto;
}

.cu-cta__content h2 {
  color: #fff;
  margin-bottom: var(--space-2);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
}

.cu-cta__content p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.0625rem;
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

.cu-btn-light {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.cu-btn-light:hover {
  background: #f0faf5;
  color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
}

@media (min-width: 768px) {
  .cu-cta__card {
    padding: var(--space-6) var(--space-5);
  }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  .cu-hero__badge-dot,
  .cu-network__lines path,
  .cu-network__dots circle,
  .cu-network__ai,
  .cu-network__band,
  .cu-chip {
    animation: none;
  }

  .cu-option-card:hover,
  .cu-option-card.is-hovered,
  .cu-link-card:hover,
  .cu-link-card.is-hovered {
    transform: none;
  }
}