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

:root {
  --white: #ffffff;
  --near-white: #f8f8f8;
  --gray-200: #e4e4e4;
  --gray-400: #9a9a9a;
  --gray-600: #5a5a5a;
  --near-black: #1a1a1a;
  --accent-purple: #b8a8d4;
  --accent-blue: #a8c4d4;
  --font: 'Inter', sans-serif;
}

body {
  font-family: var(--font);
  background: var(--white);
  color: var(--near-black);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* NAV */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 2.5rem;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
}

.nav-logo {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--near-black);
  text-decoration: none;
}

.nav-actions { display: flex; align-items: center; gap: 1.5rem; }

.nav-user { font-size: 0.72rem; color: var(--gray-400); letter-spacing: 0.05em; }

.nav-link {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-600);
  text-decoration: none;
}

.nav-link:hover { color: var(--near-black); }

/* MAIN */
main { max-width: 960px; margin: 0 auto; padding: 5rem 2.5rem 6rem; }

.page-header { margin-bottom: 3rem; }

.page-header h1 {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.page-header p { font-size: 0.85rem; line-height: 1.6; color: var(--gray-400); }

.narrow { max-width: 460px; }

/* CARDS */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1px;
}

.card {
  /* An outline rather than a container background, so a half-filled last row
     does not leave grey blocks where the cards would have been. */
  box-shadow: 0 0 0 1px var(--gray-200);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: background 0.15s;
}

.card:hover { background: var(--near-white); }

.card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 2rem; right: 2rem;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}

.card:hover::after { transform: scaleX(1); }

.card-meta {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--gray-400);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.card-name { font-size: 1rem; font-weight: 600; line-height: 1.4; margin-bottom: 0.5rem; }

.card-desc { font-size: 0.78rem; line-height: 1.6; color: var(--gray-600); }

.card-open {
  display: block;
  margin-top: 1.5rem;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
  text-decoration: none;
}

/* Whole card is the click target. */
.card-open::before { content: ''; position: absolute; inset: 0; }

.card:hover .card-open { color: var(--near-black); }

.empty {
  padding: 2rem;
  background: var(--near-white);
  border: 1px solid var(--gray-200);
  font-size: 0.82rem;
  color: var(--gray-400);
}

/* FORMS */
.form-row { display: flex; gap: 0.75rem; flex-wrap: wrap; }

input[type=email] {
  font-family: var(--font);
  font-size: 0.85rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--gray-200);
  color: var(--near-black);
  min-width: 220px;
  flex: 1;
}

input:focus { outline: none; border-color: var(--near-black); }

button {
  font-family: var(--font);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.65rem 1.25rem;
  border: 1px solid var(--near-black);
  background: var(--white);
  color: var(--near-black);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

button:hover { background: var(--near-black); color: var(--white); }

.error, .ok {
  padding: 0.85rem 1rem;
  font-size: 0.8rem;
  margin-bottom: 1.5rem;
}

.error { background: #fdeceb; border: 1px solid #f5c6c2; color: #b3261e; }
.ok { background: #e8f4ee; border: 1px solid #bfe0cd; color: #2d7a4f; }
.ok a { color: inherit; }

.back {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
  text-decoration: none;
}

.back:hover { color: var(--near-black); }

@media (max-width: 600px) {
  nav { padding: 1rem; }
  main { padding: 3rem 1rem 4rem; }
}