:root {
  --bg: #0b0e14;
  --panel: #111621;
  --card: #171d2a;
  --text: #e8edf6;
  --muted: #9aa4b2;
  --accent: #f97316;
  --accent-2: #38bdf8;
  --border: rgba(255, 255, 255, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  font-family: "DM Sans", "Segoe UI", sans-serif;
  background: radial-gradient(circle at 10% 10%, rgba(56, 189, 248, 0.15), transparent 35%),
    radial-gradient(circle at 90% 0%, rgba(249, 115, 22, 0.18), transparent 40%),
    var(--bg);
  color: var(--text);
  margin: 0;
}

h1, h2, h3 {
  font-family: "Playfair Display", "Times New Roman", serif;
  margin: 0;
}

p {
  margin: 0;
  color: var(--muted);
}

button {
  font-family: inherit;
  border: none;
  cursor: pointer;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 40px;
  border-bottom: 1px solid var(--border);
  background: rgba(17, 22, 33, 0.8);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}

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

.brand-mark {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 1.2px;
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
}

.actions {
  display: flex;
  gap: 10px;
}

.primary {
  background: var(--accent);
  color: #0b0e14;
  padding: 10px 16px;
  border-radius: 10px;
  font-weight: 600;
}

.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 16px;
  border-radius: 10px;
}

.content {
  max-width: 1150px;
  margin: 0 auto;
  padding: 40px 40px 80px;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
  align-items: center;
  margin-bottom: 60px;
}

.hero h2 {
  font-size: 2.4rem;
}

.hero-card {
  background: var(--panel);
  padding: 24px;
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.35);
}

.section {
  margin-top: 40px;
}

.section-title {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 20px;
}

.section-title span {
  color: var(--muted);
  font-size: 0.9rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 20px;
  border-radius: 14px;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 189, 248, 0.6);
  box-shadow: 0 20px 30px rgba(0, 0, 0, 0.35);
}

.locked {
  border-style: dashed;
}

.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.75);
  z-index: 20;
  padding: 30px;
}

.modal-box {
  background: var(--panel);
  max-width: 420px;
  margin: 10% auto;
  padding: 28px;
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45);
  display: grid;
  gap: 14px;
}

.modal-head p {
  color: var(--muted);
}

.modal label {
  display: grid;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--muted);
}

.modal input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0b0e14;
  color: var(--text);
}

.modal-actions {
  display: flex;
  gap: 10px;
}

.error {
  color: #fca5a5;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .content {
    padding: 30px 20px 60px;
  }

  .section-title {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .modal-box {
    margin: 20% auto;
  }
}