:root {
  --bg: #081a2c;
  --panel: #0e2641;
  --panel-border: rgba(255, 255, 255, 0.06);
  --copy: #f5f8ff;
  --muted: #99a8c4;
  --accent-start: #ffffff;
  --accent-end: #eff1f5;
  --cta-start: #ffffff;
  --cta-end: #dbeafe;
  --cta-text: #0b1946;
  --danger: #ff5a79;
  font-size: 16px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, #0f2f4b, var(--bg));
  color: var(--copy);
  font-family: "Inter", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: stretch;
  padding: 44px 24px 120px;
}

.page {
  width: 100%;
  max-width: 1200px;
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo-small,
.logo-large {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  color: #fff;
  border-radius: 16px;
}

.logo-small {
  width: 48px;
  height: 48px;
  font-size: 22px;
}

.logo-large {
  width: 88px;
  height: 88px;
  font-size: 38px;
  margin-bottom: 12px;
}

.logo-small span,
.logo-large span {
  transform: rotate(-15deg);
  display: block;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.suite {
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.17em;
  color: rgba(255, 255, 255, 0.86);
}

.beta {
  font-size: 12px;
  letter-spacing: 0.21em;
  color: rgba(255, 255, 255, 0.46);
}

.engie-logo {
  display: flex;
  align-items: center;
}

.engie-logo img {
  filter: brightness(0) invert(1) brightness(2);
  opacity: 1;
}

.hero {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding-bottom: 32px;
}

.hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  margin: 0;
  color: #fafdff;
}

.tagline {
  margin: 0;
  margin-top: -20px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(84, 214, 255, 0.85);
  background: linear-gradient(135deg, #54d6ff, #3ecaff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  padding-bottom: 32px;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
  margin-bottom: 64px;
}

.feature-card {
  background: radial-gradient(circle at top right, rgba(62, 201, 255, 0.15), transparent 58%),
    var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-height: 220px;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.25);
}

.feature-header {
  display: flex;
  align-items: center;
  gap: 16px;
}

.feature-title {
  flex: 1;
}

.feature-card h2 {
  font-size: 20px;
  margin: 0;
  font-weight: 600;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
  font-size: 15px;
}

.icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon svg {
  width: 28px;
  height: 28px;
}

.icon svg * {
  stroke: #54d6ff;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

.icon svg path {
  fill: rgba(84, 214, 255, 0.35);
  stroke: #54d6ff;
}

.resources {
  margin: 32px 0;
  display: flex;
  justify-content: center;
}

.resource-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}

.resource-link {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: rgba(6, 15, 27, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  text-decoration: none;
  color: var(--copy);
  transition: all 0.3s ease;
  backdrop-filter: blur(8px);
  min-width: 280px;
}

.resource-link:hover {
  background: rgba(6, 15, 27, 0.6);
  border-color: rgba(84, 214, 255, 0.4);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(84, 214, 255, 0.2);
}

.resource-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: rgba(84, 214, 255, 0.15);
  border-radius: 12px;
  color: #54d6ff;
  flex-shrink: 0;
}

.resource-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.resource-title {
  font-weight: 600;
  font-size: 16px;
  color: #fafdff;
}

.resource-description {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.4;
}

.qr-section {
  display: flex;
  justify-content: center;
}

.qr-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.qr-code img {
  border-radius: 8px;
  background: white;
  padding: 8px;
}

.qr-text {
  font-size: 14px;
  font-weight: 500;
  color: #1a1a1a;
  text-align: center;
}

.cta {
  margin: 16px auto 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  max-width: 720px;
}

.cta-lead {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: #e6f4ff;
  letter-spacing: 0.04em;
}

.cta-copy {
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  text-align: center;
  line-height: 1.6;
  max-width: 640px;
}

.interest-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
  width: 100%;
  background: rgba(6, 15, 27, 0.4);
  padding: 28px 32px 32px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(200px, 1fr));
  gap: 20px 24px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-field-wide {
  grid-column: 1 / -1;
}

.interest-form label {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: rgba(230, 244, 255, 0.9);
}

.required-indicator {
  color: var(--danger);
  margin-left: 4px;
}

.interest-form input {
  border: none;
  outline: none;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 16px;
  transition: border 0.2s ease, box-shadow 0.2s ease;
  border: 1px solid transparent;
}

.interest-form input:focus-visible {
  border-color: rgba(84, 214, 255, 0.8);
  box-shadow: 0 0 0 3px rgba(84, 214, 255, 0.2);
}

.interest-form input::placeholder {
  color: rgba(255, 255, 255, 0.55);
}

.field-subtitle {
  margin: 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  font-style: italic;
  margin-bottom: 8px;
}

.interest-form textarea {
  border: none;
  outline: none;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 16px;
  transition: border 0.2s ease, box-shadow 0.2s ease;
  border: 1px solid transparent;
  font-family: inherit;
  resize: vertical;
  min-height: 100px;
}

.interest-form textarea:focus-visible {
  border-color: rgba(84, 214, 255, 0.8);
  box-shadow: 0 0 0 3px rgba(84, 214, 255, 0.2);
}

.interest-form textarea::placeholder {
  color: rgba(255, 255, 255, 0.55);
  font-weight: 400;
  font-size: 14px;
}

.interest-form button {
  border: none;
  border-radius: 12px;
  padding: 12px 24px;
  font-weight: 600;
  font-size: 16px;
  background: linear-gradient(135deg, var(--cta-start), var(--cta-end));
  color: var(--cta-text);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  align-self: center;
  min-width: 180px;
  padding: 14px 36px;
}

.interest-form button:hover,
.interest-form button:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(123, 188, 255, 0.35);
}

.interest-form button:disabled {
  opacity: 0.6;
  cursor: wait;
  transform: none;
  box-shadow: none;
}

.form-feedback {
  min-height: 20px;
  color: var(--muted);
  font-size: 15px;
  text-align: center;
}

.form-feedback.error {
  color: var(--danger);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 768px) {
  body {
    padding: 32px 16px 80px;
  }

  .features {
    grid-template-columns: 1fr;
  }

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

  .interest-form button {
    width: 100%;
    align-self: stretch;
  }
}