/* =========================================================
   BTTK Contact Page
   File: assets/css/contact.css
   Page: /lien-he/
   ========================================================= */

.bttk-contact-page {
  background: #f6f7f9;
  color: var(--text);
}

.bttk-contact-page .container {
  width: min(var(--container), calc(100% - 32px));
  margin: 0 auto;
}

/* =========================
   HERO
========================= */
.contact-hero-pro {
  padding: 72px 0 58px;
  background:
    radial-gradient(circle at top left, rgba(15, 76, 129, 0.24), transparent 34%),
    radial-gradient(circle at bottom right, rgba(249, 115, 22, 0.16), transparent 30%),
    linear-gradient(135deg, #101827 0%, #142239 54%, #07111f 100%);
  color: #fff;
}

.contact-hero-pro__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.55fr);
  gap: 34px;
  align-items: center;
}

.contact-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #f97316;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-kicker::before {
  content: "";
  width: 22px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}

.contact-hero-pro__title {
  margin: 14px 0 18px;
  color: #fff;
  font-size: clamp(36px, 5vw, 62px);
  line-height: 1.04;
  letter-spacing: -0.045em;
}

.contact-hero-pro__desc {
  max-width: 720px;
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
  line-height: 1.75;
}

.contact-hero-pro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 900;
  text-decoration: none;
  transition:
    transform 0.18s ease,
    background 0.18s ease,
    color 0.18s ease,
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}

.contact-btn:hover {
  transform: translateY(-1px);
}

.contact-btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 16px 34px rgba(249, 115, 22, 0.28);
}

.contact-btn--primary:hover {
  background: #ea580c;
  color: #fff;
}

.contact-btn--ghost {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.contact-btn--ghost:hover {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
}

.contact-mini-card {
  padding: 30px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(16px);
}

.contact-mini-card span {
  display: inline-flex;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(249, 115, 22, 0.18);
  color: #fed7aa;
  font-size: 13px;
  font-weight: 900;
}

.contact-mini-card strong {
  display: block;
  margin-top: 18px;
  color: #fff;
  font-size: 25px;
  line-height: 1.25;
}

.contact-mini-card p {
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.76);
  line-height: 1.65;
}

/* =========================
   MAIN
========================= */
.contact-main-pro {
  padding: 68px 0;
}

.contact-layout-pro {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(380px, 0.78fr);
  gap: 34px;
  align-items: start;
}

.contact-section-head h2 {
  margin: 10px 0 12px;
  color: var(--text);
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.contact-section-head p {
  margin: 0;
  max-width: 680px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

.contact-card-list {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.contact-info-card {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  align-items: center;
  padding: 18px;
  border-radius: 22px;
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.06);
}

.contact-info-card__icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 18px;
  background: var(--brand);
  color: #fff;
  font-size: 20px;
}

.contact-info-card span {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.contact-info-card a {
  color: var(--text);
  font-size: 17px;
  font-weight: 900;
  text-decoration: none;
  word-break: break-word;
}

.contact-info-card a:hover {
  color: var(--brand);
}

.contact-support-box {
  margin-top: 18px;
  padding: 24px;
  border-radius: 24px;
  background:
    radial-gradient(circle at top right, rgba(249, 115, 22, 0.08), transparent 28%),
    #fff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.06);
}

.contact-support-box h3 {
  margin: 0 0 14px;
  color: var(--text);
  font-size: 22px;
  line-height: 1.25;
}

.contact-support-box ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-support-box li {
  position: relative;
  padding-left: 22px;
  color: var(--muted);
  line-height: 1.65;
}

.contact-support-box li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
}

/* =========================
   FORM
========================= */
.contact-form-pro-wrap {
  position: sticky;
  top: 96px;
  min-width: 0;
}

.contact-form-pro {
  padding: 28px;
  border-radius: 28px;
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 26px 70px rgba(15, 23, 42, 0.1);
}

.contact-form-pro__head {
  margin-bottom: 20px;
}

.contact-form-pro__head span {
  display: inline-flex;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-form-pro__head h2 {
  margin: 0;
  color: var(--text);
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.contact-form-pro__head p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.contact-field {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.contact-field--split {
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.contact-field label {
  color: #1f2937;
  font-size: 14px;
  font-weight: 800;
}

.contact-field input,
.contact-field textarea {
  width: 100%;
  border: 1px solid #dfe3ea;
  border-radius: 16px;
  background: #f9fafc;
  color: var(--text);
  font: inherit;
  padding: 13px 14px;
  outline: none;
  box-shadow: none;
  transition:
    border-color 0.16s ease,
    box-shadow 0.16s ease,
    background 0.16s ease;
}

.contact-field textarea {
  resize: vertical;
  min-height: 140px;
}

.contact-field input:focus,
.contact-field textarea:focus {
  border-color: var(--brand);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(15, 76, 129, 0.1);
}

.contact-submit {
  width: 100%;
  min-height: 48px;
  border: 0;
  border-radius: 999px;
  background: var(--brand);
  color: #fff;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 16px 34px rgba(15, 76, 129, 0.22);
  transition:
    transform 0.18s ease,
    background 0.18s ease,
    box-shadow 0.18s ease;
}

.contact-submit:hover {
  transform: translateY(-1px);
  background: var(--brand-dark);
}

.contact-form-pro__note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
  text-align: center;
}

.contact-form-pro__note a {
  color: var(--brand);
  font-weight: 800;
  text-decoration: none;
}

.contact-form-pro__note a:hover {
  color: var(--brand-dark);
}

/* =========================
   NOTICE
========================= */
.contact-notice {
  margin-bottom: 18px;
  padding: 14px 16px;
  border-radius: 16px;
  font-weight: 800;
  line-height: 1.55;
}

.contact-notice--success {
  border: 1px solid rgba(22, 163, 74, 0.22);
  background: rgba(22, 163, 74, 0.08);
  color: #166534;
}

.contact-notice--warning {
  border: 1px solid rgba(249, 115, 22, 0.22);
  background: rgba(249, 115, 22, 0.1);
  color: #9a3412;
}

.contact-notice--error {
  border: 1px solid rgba(220, 38, 38, 0.22);
  background: rgba(220, 38, 38, 0.08);
  color: #991b1b;
}

/* =========================
   GUIDE
========================= */
.contact-guide-pro {
  padding: 58px 0 76px;
  background: #fff;
}

.contact-guide-pro__head {
  max-width: 760px;
  margin-bottom: 26px;
}

.contact-guide-pro__head h2 {
  margin: 10px 0 0;
  color: var(--text);
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.contact-guide-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.contact-guide-card {
  padding: 22px;
  border-radius: 24px;
  background: #f8fafc;
  border: 1px solid rgba(15, 23, 42, 0.08);
  transition:
    transform 0.18s ease,
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}

.contact-guide-card:hover {
  transform: translateY(-2px);
  border-color: rgba(15, 76, 129, 0.18);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
}

.contact-guide-card strong {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 900;
}

.contact-guide-card h3 {
  margin: 0 0 10px;
  color: var(--text);
  font-size: 18px;
  line-height: 1.35;
}

.contact-guide-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

/* =========================
   RESPONSIVE
========================= */
@media (max-width: 991px) {
  .contact-hero-pro {
    padding: 56px 0 44px;
  }

  .contact-hero-pro__inner,
  .contact-layout-pro {
    grid-template-columns: 1fr;
  }

  .contact-form-pro-wrap {
    position: static;
    top: auto;
  }

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

@media (max-width: 767px) {
  .contact-main-pro {
    padding: 44px 0;
  }

  .contact-guide-pro {
    padding: 44px 0 56px;
  }

  .contact-mini-card,
  .contact-form-pro,
  .contact-support-box {
    padding: 22px;
    border-radius: 22px;
  }

  .contact-field--split {
    grid-template-columns: 1fr;
  }

  .contact-info-card {
    grid-template-columns: 44px 1fr;
    padding: 15px;
    border-radius: 18px;
  }

  .contact-info-card__icon {
    width: 44px;
    height: 44px;
    border-radius: 15px;
    font-size: 17px;
  }

  .contact-guide-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .bttk-contact-page .container {
    width: min(calc(100% - 20px), var(--container));
  }

  .contact-hero-pro {
    padding: 46px 0 36px;
  }

  .contact-hero-pro__title {
    font-size: clamp(32px, 10vw, 42px);
  }

  .contact-hero-pro__desc {
    font-size: 15px;
  }

  .contact-hero-pro__actions {
    flex-direction: column;
  }

  .contact-btn {
    width: 100%;
  }

  .contact-form-pro__head h2 {
    font-size: 24px;
  }
}