:root {
  --primary: #FF6B35;
  --primary-dark: #e55a25;
  --dark: #1a1a2e;
  --gray: #6c757d;
  --light: #f8f9fa;
  --white: #ffffff;
  --border: #dee2e6;
  --radius: 12px;
  --shadow: 0 4px 20px rgba(0,0,0,.1);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Segoe UI', system-ui, sans-serif; color: var(--dark); background: var(--white); }
a { text-decoration: none; color: inherit; }

/* Navbar */
.navbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 2rem; background: var(--white);
  box-shadow: 0 2px 10px rgba(0,0,0,.06); position: sticky; top: 0; z-index: 100;
}
.navbar .logo { font-size: 1.5rem; font-weight: 700; color: var(--primary); text-decoration: none; }
.navbar .logo span { color: var(--dark); }
.nav-links { display: flex; gap: 1rem; align-items: center; }
.btn { padding: .6rem 1.4rem; border-radius: 8px; font-size: .95rem; font-weight: 600;
  cursor: pointer; border: none; transition: all .2s; display: inline-flex; align-items: center; gap: .4rem; }
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: var(--white); }
.btn-dark { background: var(--dark); color: var(--white); }
.btn-dark:hover { opacity: .85; }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--dark) 0%, #16213e 100%);
  color: var(--white); padding: 5rem 2rem; text-align: center;
}
.hero h1 { font-size: clamp(2rem, 5vw, 3.5rem); margin-bottom: 1rem; }
.hero h1 span { color: var(--primary); }
.hero p { font-size: 1.2rem; color: #adb5bd; max-width: 600px; margin: 0 auto 2rem; }
.hero-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* Features */
.features { padding: 4rem 2rem; background: var(--light); }
.section-title { text-align: center; font-size: 2rem; margin-bottom: .5rem; }
.section-sub { text-align: center; color: var(--gray); margin-bottom: 3rem; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem; max-width: 1100px; margin: 0 auto; }
.feature-card { background: var(--white); border-radius: var(--radius); padding: 2rem;
  text-align: center; box-shadow: var(--shadow); }
.feature-card .icon { font-size: 2.5rem; margin-bottom: 1rem; }
.feature-card h3 { margin-bottom: .5rem; }
.feature-card p { color: var(--gray); font-size: .95rem; }

/* Pricing */
.pricing { padding: 4rem 2rem; }
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem; max-width: 1000px; margin: 0 auto; }
.plan-card { border: 2px solid var(--border); border-radius: var(--radius); padding: 2.5rem 2rem;
  text-align: center; transition: all .3s; position: relative; }
.plan-card:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-4px); }
.plan-card.featured { border-color: var(--primary); background: linear-gradient(135deg, #fff5f0, #fff); }
.plan-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: var(--white); padding: .2rem 1rem; border-radius: 20px; font-size: .8rem; font-weight: 600; }
.plan-name { font-size: 1.4rem; font-weight: 700; margin-bottom: .5rem; }
.plan-price { font-size: 2.5rem; font-weight: 800; color: var(--primary); margin: .5rem 0; }
.plan-price small { font-size: 1rem; color: var(--gray); font-weight: 400; }
.plan-features { list-style: none; margin: 1.5rem 0; text-align: left; }
.plan-features li { padding: .4rem 0; color: var(--gray); display: flex; gap: .5rem; align-items: center; }
.plan-features li::before { content: '✓'; color: var(--primary); font-weight: 700; }

/* Form pages */
.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--light); padding: 2rem; }
.auth-card { background: var(--white); border-radius: var(--radius); padding: 2.5rem;
  width: 100%; max-width: 420px; box-shadow: var(--shadow); }
.auth-card h2 { text-align: center; margin-bottom: .5rem; }
.auth-card .subtitle { text-align: center; color: var(--gray); margin-bottom: 2rem; font-size: .95rem; }
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; margin-bottom: .4rem; font-weight: 600; font-size: .9rem; }
.form-group input { width: 100%; padding: .75rem 1rem; border: 2px solid var(--border);
  border-radius: 8px; font-size: 1rem; transition: border .2s; }
.form-group input:focus { outline: none; border-color: var(--primary); }
.btn-full { width: 100%; padding: .85rem; font-size: 1rem; margin-top: .5rem; }
.divider { display: flex; align-items: center; gap: 1rem; margin: 1.5rem 0; }
.divider::before, .divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.divider span { color: var(--gray); font-size: .85rem; white-space: nowrap; }
.auth-footer { text-align: center; margin-top: 1.5rem; color: var(--gray); font-size: .9rem; }
.auth-footer a { color: var(--primary); font-weight: 600; }
.error-msg { background: #fee; color: #c00; border: 1px solid #fcc; border-radius: 8px;
  padding: .75rem 1rem; margin-bottom: 1rem; font-size: .9rem; display: none; }
.error-msg.visible { display: block; }

/* Footer */
footer { background: var(--dark); color: #adb5bd; text-align: center; padding: 2rem;
  margin-top: 4rem; font-size: .9rem; }
footer strong { color: var(--primary); }

/* Spinner */
.spinner { width: 20px; height: 20px; border: 3px solid rgba(255,255,255,.3);
  border-top-color: #fff; border-radius: 50%; animation: spin .6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 600px) {
  .navbar { padding: 1rem; }
  .hero { padding: 3rem 1rem; }
}