:root {
  --bg: #f4f7fb;
  --bg-accent: #edf4ff;
  --surface: #ffffff;
  --surface-strong: #eef3ff;
  --surface-muted: #f8faff;
  --ink: #14213d;
  --ink-soft: #4c5f7c;
  --line: #dfe7f5;
  --primary: #155eef;
  --primary-strong: #0c48c7;
  --primary-soft: rgba(21, 94, 239, 0.12);
  --success: #0d9a65;
  --warning: #f59e0b;
  --shadow: 0 20px 40px rgba(20, 33, 61, 0.08);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: linear-gradient(180deg, #f8fbff 0%, #edf3ff 100%);
  color: var(--ink);
  line-height: 1.55;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select {
  font: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  width: min(1200px, calc(100% - 2rem));
  margin: 1rem auto 0;
  padding: 0.9rem 1.2rem;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(223, 231, 245, 0.9);
  border-radius: 16px;
  box-shadow: 0 8px 20px rgba(20, 33, 61, 0.04);
  backdrop-filter: blur(10px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 800;
  color: var(--ink);
}

.brand-mark {
  display: inline-flex;
  width: 2rem;
  height: 2rem;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, #6aa2ff 100%);
  color: white;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.topbar nav {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.topbar nav a:hover {
  color: var(--primary);
}

.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  transition: 0.2s ease;
}

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

.btn-small {
  padding: 0.55rem 1rem;
  font-size: 0.8rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);
  color: #fff;
  box-shadow: 0 10px 20px rgba(21, 94, 239, 0.25);
}

.btn-outline {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

main {
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
}

.portal-hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 2rem;
  padding: 4rem 0 2rem;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 0.9rem;
  color: var(--primary);
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 800;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

.portal-hero h1 {
  margin-bottom: 1rem;
  font-size: clamp(2.4rem, 5vw, 4.3rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.muted {
  color: var(--ink-soft);
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.trust-row span {
  padding: 0.5rem 0.8rem;
  border-radius: 999px;
  background: rgba(21, 94, 239, 0.06);
  border: 1px solid rgba(21, 94, 239, 0.12);
}

.login-panel,
.security-panel,
.section {
  border: 1px solid rgba(223, 231, 245, 0.95);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
}

.login-panel {
  padding: 1.5rem;
  border-radius: 24px;
}

.login-panel h2 {
  margin-bottom: 0.5rem;
  font-size: 1.8rem;
  letter-spacing: -0.04em;
}

.login-panel label {
  display: block;
  margin-top: 1rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--ink-soft);
}

.login-panel input,
.toolbar input,
.toolbar select {
  width: 100%;
  margin-top: 0.45rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
}

.login-panel .btn {
  width: 100%;
  margin-top: 1.25rem;
  padding: 0.9rem 1rem;
}

.section {
  margin-top: 2.5rem;
  border-radius: 28px;
  padding: 1.6rem 1.5rem;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.4rem;
}

.section-heading h2 {
  margin-bottom: 0;
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  letter-spacing: -0.04em;
}

.toolbar {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.toolbar label {
  color: var(--ink-soft);
  font-size: 0.82rem;
  font-weight: 700;
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.app-card {
  padding: 1.3rem;
  border-radius: 18px;
  background: linear-gradient(180deg, var(--surface-muted) 0%, #fff 100%);
  border: 1px solid var(--line);
}

.app-card h3 {
  margin-bottom: 0.4rem;
  font-size: 1.12rem;
}

.app-card .meta {
  display: inline-block;
  margin-bottom: 0.9rem;
  padding: 0.36rem 0.65rem;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 0.72rem;
  font-weight: 700;
}

.app-card .details {
  margin-top: 0.9rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
}

.app-card .details a {
  color: var(--primary);
  font-weight: 700;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.product-card {
  display: flex;
  flex-direction: column;
  padding: 1.3rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(180deg, var(--surface-muted) 0%, #fff 100%);
}

.product-tier {
  margin-bottom: 0.6rem;
  color: var(--primary);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.product-card h3 {
  margin-bottom: 0.5rem;
}

.product-card p {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: auto;
  padding-top: 0.8rem;
  border-top: 1px solid var(--line);
}

.product-footer strong {
  font-size: 1.2rem;
}

.product-footer a {
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
}

.security-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin: 2.5rem 0 4rem;
  padding: 1.8rem;
  border-radius: 28px;
}

.security-list {
  display: grid;
  gap: 0.8rem;
}

.security-list > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem;
  background: var(--surface-muted);
  border: 1px solid var(--line);
  border-radius: 12px;
  font-weight: 700;
}

.security-list code {
  display: inline-block;
  padding: 0.3rem 0.55rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  font-size: 0.76rem;
  white-space: nowrap;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto 2rem;
  padding: 1.2rem 0 2rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .portal-hero,
  .security-panel,
  .app-grid,
  .product-grid {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-wrap: wrap;
  }

  @media (min-width: 601px) and (max-width: 900px) {
    .product-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  .section-heading,
  footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 600px) {
  .toolbar {
    grid-template-columns: 1fr;
  }

  .portal-hero {
    padding-top: 2.5rem;
  }

  .topbar nav {
    width: 100%;
    justify-content: space-between;
  }
}

.form-error {
  margin-top: 1rem;
  color: #b42318;
  font-size: 0.85rem;
  font-weight: 700;
}