* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --text: #172033;
  --muted: #6b7280;
  --border: #e5e7eb;
  --navy: #14213d;
  --navy-light: #23416f;
  --accent: #ff9900;
  --accent-dark: #cc7a00;
  --success: #0f9d58;
  --error: #d93025;
  --shadow: 0 16px 35px rgba(15, 23, 42, 0.1);
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.hero {
  background:
    radial-gradient(circle at top right, rgba(255, 153, 0, 0.18), transparent 28%),
    linear-gradient(135deg, var(--navy), var(--navy-light));
  color: white;
  padding: 70px 20px 90px;
}

.hero-content {
  max-width: 1100px;
  margin: 0 auto;
}

.eyebrow,
.section-label {
  display: inline-block;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1.6px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 10px;
}

.hero h1 {
  font-size: 48px;
  line-height: 1.1;
  margin-bottom: 16px;
}

.hero p {
  max-width: 650px;
  color: #d7deea;
  font-size: 18px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  padding: 9px 13px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 14px;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.15);
}

.container {
  width: 92%;
  max-width: 1120px;
  margin: -45px auto 50px;
}

.contact-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 30px;
  align-items: stretch;
}

.contact-info,
.form-card {
  background: var(--surface);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.contact-info {
  padding: 36px;
}

.contact-info h2 {
  font-size: 32px;
  margin-bottom: 12px;
}

.contact-info > p {
  color: var(--muted);
  margin-bottom: 28px;
}

.feature-list {
  display: grid;
  gap: 18px;
}

.feature {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px;
  background: #f8fafc;
  border-radius: 14px;
}

.feature > span {
  font-size: 24px;
}

.feature h3 {
  margin-bottom: 3px;
  font-size: 17px;
}

.feature p {
  color: var(--muted);
  font-size: 14px;
}

.form-card {
  padding: 36px;
}

form {
  display: grid;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.input-group {
  position: relative;
}

.input-group input,
.input-group textarea {
  width: 100%;
  padding: 20px 14px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 16px;
  background: white;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.input-group textarea {
  min-height: 150px;
  resize: vertical;
}

.input-group label {
  position: absolute;
  left: 14px;
  top: 15px;
  color: var(--muted);
  background: white;
  padding: 0 4px;
  pointer-events: none;
  transition: 0.2s ease;
}

.input-group input:focus,
.input-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(255, 153, 0, 0.12);
}

.input-group input:focus + label,
.input-group input:not(:placeholder-shown) + label,
.input-group textarea:focus + label,
.input-group textarea:not(:placeholder-shown) + label {
  top: -9px;
  font-size: 12px;
  color: var(--accent-dark);
}

.textarea-group {
  position: relative;
}

.char-count {
  position: absolute;
  right: 12px;
  bottom: 10px;
  font-size: 12px;
  color: var(--muted);
}

#submitButton {
  border: none;
  border-radius: 10px;
  padding: 14px 18px;
  background: var(--accent);
  color: #111827;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    background 0.2s ease;
}

#submitButton:hover {
  background: #ffad33;
  transform: translateY(-1px);
}

#submitButton:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.loader {
  display: inline-block;
  width: 16px;
  height: 16px;
  margin-left: 8px;
  border: 2px solid rgba(0, 0, 0, 0.25);
  border-top-color: #111827;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.form-status {
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 14px;
}

.form-status.success {
  background: #ecfdf3;
  color: var(--success);
  border: 1px solid #bbf7d0;
}

.form-status.error {
  background: #fef2f2;
  color: var(--error);
  border: 1px solid #fecaca;
}

.architecture {
  margin-top: 40px;
  background: var(--surface);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 36px;
}

.architecture h2 {
  font-size: 30px;
  margin-bottom: 28px;
}

.architecture-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  gap: 14px;
  align-items: center;
}

.architecture-card {
  text-align: center;
  padding: 22px 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fbfdff;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease;
}

.architecture-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.architecture-card span {
  display: block;
  font-size: 28px;
  margin-bottom: 8px;
}

.architecture-card h3 {
  margin-bottom: 6px;
}

.architecture-card p {
  color: var(--muted);
  font-size: 14px;
}

.arrow {
  font-size: 26px;
  color: var(--accent);
  font-weight: 700;
}

footer {
  text-align: center;
  padding: 26px 20px;
  color: var(--muted);
  font-size: 14px;
}

.hidden {
  display: none;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 900px) {
  .contact-section {
    grid-template-columns: 1fr;
  }

  .architecture-flow {
    grid-template-columns: 1fr;
  }

  .arrow {
    transform: rotate(90deg);
    text-align: center;
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 52px 18px 75px;
  }

  .hero h1 {
    font-size: 36px;
  }

  .container {
    width: 94%;
  }

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

  .contact-info,
  .form-card,
  .architecture {
    padding: 24px;
  }
}