:root {
  --bg: #f8f9fa;
  --bg-card: #ffffff;
  --bg-soft: #eef4ff;
  --accent: #2563eb;
  --accent-dim: #1d4ed8;
  --accent-soft: rgba(37, 99, 235, 0.1);
  --text: #1f2937;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --warning: #d97706;
  --success: #059669;
  --error: #dc2626;
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Heebo', sans-serif;
  min-height: 100vh;
  background:
    radial-gradient(circle at 15% 10%, rgba(37, 99, 235, 0.13), transparent 28rem),
    linear-gradient(135deg, #f8f9fa 0%, #edf6f4 100%);
  color: var(--text);
  line-height: 1.55;
}

.hidden {
  display: none !important;
}

.dev-banner {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 0.45rem 1rem;
  background: linear-gradient(90deg, #f59e0b, #d97706);
  color: #fff;
  text-align: center;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.public-header {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  text-decoration: none;
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-dot {
  color: var(--accent);
}

.system-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 12px;
  background: linear-gradient(145deg, var(--accent), #60a5fa);
  color: #fff;
  font-size: 1.25rem;
  font-weight: 800;
  box-shadow: 0 10px 22px rgba(37, 99, 235, 0.22);
}

.public-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.public-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 600;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
}

.public-nav a:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.public-nav .login-link {
  background: var(--text);
  color: #fff;
}

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1rem 1.25rem 3rem;
}

.hero-section {
  min-height: 62vh;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: 2rem;
  padding: 2rem 0 4rem;
}

.hero-card,
.content-section,
.contact-section {
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(229, 231, 235, 0.8);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.hero-card {
  padding: clamp(2rem, 5vw, 4rem);
}

.eyebrow {
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 0.7rem;
}

h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  line-height: 1.1;
  margin-bottom: 0.8rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 0.55rem;
}

.hero-subtitle,
.section-heading p,
.contact-info p,
.support-card p,
.public-footer {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 2.8rem;
  padding: 0.75rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 12px;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-dim);
}

.btn-secondary {
  background: #fff;
  color: var(--accent);
  border-color: var(--border);
}

.hero-visual {
  min-height: 410px;
  position: relative;
}

.visual-panel {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 22px 50px rgba(15, 23, 42, 0.12);
  padding: 1.4rem;
}

.visual-panel-main {
  inset: 2rem 1.5rem auto 4rem;
  min-height: 190px;
  background: linear-gradient(145deg, #ffffff, #e9f1ff);
}

.visual-panel-side {
  left: 0;
  top: 11rem;
  width: 48%;
}

.visual-panel-bottom {
  right: 5rem;
  bottom: 2rem;
  width: 58%;
}

.visual-label {
  display: block;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.visual-panel strong {
  font-size: 1.4rem;
}

.content-section,
.contact-section {
  padding: clamp(1.5rem, 4vw, 3rem);
  margin-bottom: 2rem;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 1.5rem;
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem;
}

.support-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.4rem;
}

.card-link {
  display: inline-block;
  margin-top: 1rem;
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}
.card-link-button {
  border: 0;
  background: transparent;
  font: inherit;
  cursor: not-allowed;
  opacity: 0.7;
  padding: 0;
}

.contact-section {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 2rem;
}

.contact-details {
  display: grid;
  gap: 0.55rem;
  margin-top: 1.3rem;
}

.contact-details a,
.contact-details span {
  color: var(--text);
  text-decoration: none;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.75rem 0.9rem;
}

.contact-form {
  display: grid;
  gap: 1rem;
}

.contact-form-heading {
  margin-bottom: 0.25rem;
}

.contact-form-heading h2 {
  font-size: clamp(1.55rem, 2.6vw, 2.25rem);
}

.contact-form label {
  display: grid;
  gap: 0.35rem;
  font-weight: 600;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  color: var(--text);
  font: inherit;
  padding: 0.8rem 0.9rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.contact-status {
  min-height: 1.4rem;
  font-weight: 700;
}

.contact-status.success {
  color: var(--success);
}

.contact-status.error {
  color: var(--error);
}

.public-footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid rgba(229, 231, 235, 0.8);
}

@media (max-width: 850px) {
  .public-header,
  .public-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-section,
  .contact-section,
  .support-grid,
  .form-row {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 300px;
  }

  .visual-panel-main {
    inset: 0 0 auto 2rem;
  }

  .visual-panel-side {
    top: 8rem;
    width: 62%;
  }

  .visual-panel-bottom {
    right: 2rem;
    width: 70%;
  }
}