/* Landing page */

body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #1e293b; background: #f8fafc; margin:0; }

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

.navbar { background: #fff; border-bottom: 1px solid #e2e8f0; position: sticky; top:0; z-index:100; }
.nav-content { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; }
.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; color: #1e293b; font-weight: 700; font-size: 1.2rem; }
.nav-actions { display: flex; gap: 10px; }

.hero { padding: 80px 0 60px; text-align: center; }
.hero h1 { font-size: 2.5rem; font-weight: 800; line-height: 1.2; margin-bottom: 16px; }
.highlight { color: #4F46E5; }
.hero-subtitle { font-size: 1.15rem; color: #64748b; max-width: 560px; margin: 0 auto 32px; }

.btn { display: inline-block; padding: 12px 24px; border-radius: 12px; font-weight: 600; text-decoration: none; transition: all .15s; font-size: .95rem; border: none; cursor: pointer; }
.btn-primary { background: #4F46E5; color: #fff; }
.btn-primary:hover { background: #4338CA; }
.btn-secondary { background: #f1f5f9; color: #475569; }
.btn-secondary:hover { background: #e2e8f0; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-sm { padding: 8px 16px; font-size: .85rem; }
.btn-block { width: 100%; }

.features { padding: 64px 0; }
.features h2 { text-align: center; font-size: 1.6rem; margin-bottom: 40px; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.feature-card { background: #fff; padding: 28px; border-radius: 16px; text-align: center; box-shadow: 0 2px 12px rgba(0,0,0,.05); }
.feature-icon { font-size: 2.2rem; margin-bottom: 12px; }
.feature-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.feature-card p { color: #64748b; font-size: .92rem; }

.trust { padding: 60px 0; text-align: center; background: #fff; margin-top: 20px; }
.trust blockquote { font-size: 1.3rem; font-style: italic; color: #475569; max-width: 600px; margin: 0 auto 12px; }
.trust p { color: #94a3b8; }

.footer { padding: 24px 0; text-align: center; font-size: .85rem; color: #94a3b8; }

/* Summer showcase */
.summer-showcase { padding: 64px 0; background: linear-gradient(135deg, #f0f4ff, #fff); }
.summer-intro { text-align: center; margin-bottom: 40px; }
.summer-intro h2 { font-size: 1.7rem; margin-bottom: 8px; }
.summer-intro p { color: #64748b; max-width: 500px; margin: 0 auto; }

.summer-mockup { background: #1e293b; border-radius: 18px; overflow: hidden; box-shadow: 0 8px 32px rgba(0,0,0,.15); max-width: 700px; margin: 0 auto 40px; }
.mockup-bar { display: flex; gap: 8px; padding: 12px 16px; background: #334155; }
.mockup-bar span { width: 12px; height: 12px; border-radius: 50%; background: #64748b; }
.mockup-body { display: flex; min-height: 260px; }
.mockup-sidebar { width: 160px; background: #0f172a; padding: 16px 12px; display: flex; flex-direction: column; gap: 6px; }
.mockup-matiere { padding: 8px 12px; border-radius: 8px; font-size: .78rem; color: #94a3b8; text-decoration: none; display: block; }
.mockup-matiere.active { background: #1e293b; color: #e2e8f0; }
.mockup-main { flex:1; padding: 16px; }
.mockup-card { background: #334155; border-radius: 12px; padding: 16px; }
.mockup-card h4 { color: #e2e8f0; font-size: .85rem; margin-bottom: 10px; font-weight: 500; }
.mockup-lesson { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.mockup-line { height: 6px; background: #475569; border-radius: 3px; width: 100%; }
.mockup-line.short { width: 60%; }
.mockup-progress { height: 4px; background: #475569; border-radius: 2px; margin-bottom: 12px; overflow: hidden; }
.mockup-fill { height: 100%; width: 30%; background: #4F46E5; border-radius: 2px; }
.mockup-question { color: #cbd5e1; font-size: .78rem; margin-bottom: 10px; }
.mockup-choices { display: flex; flex-direction: column; gap: 6px; }
.mockup-choice { padding: 8px 12px; border-radius: 8px; background: #475569; color: #94a3b8; font-size: .75rem; }
.mockup-choice.selected { background: #4F46E5; color: #fff; }

.summer-bullets { max-width: 500px; margin: 0 auto 32px; display: flex; flex-direction: column; gap: 10px; }
.bullet { font-size: .95rem; color: #334155; }
.summer-cta { text-align: center; }
.summer-cta p { margin-bottom: 16px; color: #64748b; }

.flash-debug { position: fixed; top: 16px; right: 16px; z-index: 999; }
.flash-msg { padding: 10px 16px; border-radius: 10px; font-size: .9rem; margin-bottom: 6px; display: flex; align-items: center; gap: 10px; }
.flash-success { background: #ecfdf5; color: #065f46; }
.flash-error { background: #fef2f2; color: #991b1b; }
.flash-warning { background: #fffbeb; color: #92400e; }
.flash-close { cursor: pointer; font-weight: 700; margin-left: auto; }