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

:root {
  --bg:      #0f0f1a;
  --surface: #1a1a2e;
  --card:    #16213e;
  --border:  #2a2a4a;
  --accent:  #6c63ff;
  --accent2: #ff6584;
  --text:    #e8e8f0;
  --muted:   #888899;
  --success: #27ae60;
  --error:   #e74c3c;
  --radius:  12px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  min-height: 100vh;
  line-height: 1.6;
}

/* ── Nav ── */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 40px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav-logo {
  font-size: 1.3rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

.nav-links { display: flex; gap: 12px; align-items: center; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: opacity .15s, transform .1s;
}
.btn:hover { opacity: .85; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary   { background: var(--accent); color: #fff; }
.btn-secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-danger    { background: var(--error); color: #fff; }
.btn-full      { width: 100%; justify-content: center; }

/* ── Cards & Forms ── */
.container {
  max-width: 480px;
  margin: 60px auto;
  padding: 0 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}

.card-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.card-subtitle {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 28px;
}

.form-group { margin-bottom: 18px; }

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: .5px;
}

input[type="text"],
input[type="email"],
input[type="password"] {
  width: 100%;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.95rem;
  transition: border-color .2s;
  outline: none;
}
input:focus { border-color: var(--accent); }

.alert {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  margin-bottom: 20px;
}
.alert-error   { background: rgba(231,76,60,.15); border: 1px solid var(--error); color: #ff8f85; }
.alert-success { background: rgba(39,174,96,.15); border: 1px solid var(--success); color: #5df5a0; }

.form-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 0.85rem;
  color: var(--muted);
}
.form-footer a { color: var(--accent); text-decoration: none; }
.form-footer a:hover { text-decoration: underline; }

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 0.8rem;
  margin: 24px 0;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── Hero ── */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 20px 80px;
}

.hero-badge {
  display: inline-block;
  background: rgba(108,99,255,.15);
  border: 1px solid rgba(108,99,255,.3);
  color: #a09cff;
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  max-width: 700px;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 500px;
  margin-bottom: 36px;
}

.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }

/* ── Features ── */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  max-width: 900px;
  margin: 0 auto 80px;
  padding: 0 20px;
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 14px;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--muted);
}

/* ── Dashboard ── */
.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1000px;
  margin: 40px auto 10px;
  padding: 0 20px;
}

.welcome {
  font-size: 1.4rem;
  font-weight: 700;
}

.welcome span {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}