/* ═══════════════════════════════════════════════════════════════
   Lemsio Landing Page — Design System
   ═══════════════════════════════════════════════════════════════ */

/* ── CSS Custom Properties ──────────────────────────────────── */
:root {
  --color-primary: #4F46E5;
  --color-primary-hover: #4338CA;
  --color-primary-light: rgba(79, 70, 229, 0.08);
  --color-accent: #CAEF45;
  --color-accent-hover: #B8DD33;
  --color-accent-text: #1a2e05;
  --color-dark: #0F172A;
  --color-dark-lighter: #1E293B;
  --color-surface: #F8FAFC;
  --color-surface-alt: #F1F5F9;
  --color-text: #334155;
  --color-text-light: #64748B;
  --color-text-lighter: #94A3B8;
  --color-white: #FFFFFF;
  --color-border: #E2E8F0;
  --color-moqotest: #EF4444;
  --color-okulrandevu: #3B82F6;
  --color-limonbis: #22C55E;
  --color-lcm: #8B5CF6;
  --color-oys: #F97316;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --container-max: 1200px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-family); color: var(--color-text); background: var(--color-white); line-height: 1.6; font-size: 16px; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; font-family: inherit; }
input, textarea { font-family: inherit; }

/* ── Container ──────────────────────────────────────────────── */
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }

/* ── Typography ─────────────────────────────────────────────── */
.heading-xl { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; }
.heading-lg { font-size: clamp(1.8rem, 4vw, 2.5rem); font-weight: 700; line-height: 1.15; letter-spacing: -0.015em; }
.heading-md { font-size: clamp(1.3rem, 3vw, 1.75rem); font-weight: 600; line-height: 1.25; }
.heading-sm { font-size: 1.125rem; font-weight: 600; line-height: 1.35; }
.text-lg { font-size: 1.125rem; line-height: 1.7; }
.text-md { font-size: 1rem; line-height: 1.6; }
.text-sm { font-size: 0.875rem; line-height: 1.5; }
.text-light { color: var(--color-text-light); }
.text-center { text-align: center; }

/* ── Buttons ────────────────────────────────────────────────── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 28px; border-radius: var(--radius-md); font-weight: 600; font-size: 0.95rem; transition: all var(--transition); white-space: nowrap; }
.btn-primary { background: var(--color-primary); color: var(--color-white); }
.btn-primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-accent { background: var(--color-accent); color: var(--color-accent-text); }
.btn-accent:hover { background: var(--color-accent-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--color-white); border: 2px solid rgba(255,255,255,0.3); }
.btn-outline:hover { border-color: var(--color-white); background: rgba(255,255,255,0.1); }
.btn-outline-dark { background: transparent; color: var(--color-primary); border: 2px solid var(--color-primary); }
.btn-outline-dark:hover { background: var(--color-primary); color: var(--color-white); }
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }

/* ── Sections ───────────────────────────────────────────────── */
.section { padding: 80px 0; }
.section-alt { background: var(--color-surface); }
.section-dark { background: var(--color-dark); color: var(--color-white); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header p { margin-top: 16px; color: var(--color-text-light); max-width: 600px; margin-left: auto; margin-right: auto; }
.section-dark .section-header p { color: var(--color-text-lighter); }

/* ── Navbar ─────────────────────────────────────────────────── */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 16px 0; transition: all var(--transition); }
.navbar.scrolled { background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); box-shadow: var(--shadow-sm); padding: 10px 0; }
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.navbar-logo { font-size: 1.5rem; font-weight: 800; color: var(--color-white); letter-spacing: -0.02em; }
.navbar-logo span { color: var(--color-accent); }
.navbar.scrolled .navbar-logo { color: var(--color-dark); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { color: rgba(255,255,255,0.8); font-weight: 500; font-size: 0.9rem; transition: color var(--transition); }
.nav-links a:hover { color: var(--color-white); }
.navbar.scrolled .nav-links a { color: var(--color-text-light); }
.navbar.scrolled .nav-links a:hover { color: var(--color-primary); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.lang-toggle { background: rgba(255,255,255,0.15); color: var(--color-white); padding: 6px 12px; border-radius: var(--radius-sm); font-size: 0.8rem; font-weight: 600; transition: all var(--transition); }
.lang-toggle:hover { background: rgba(255,255,255,0.25); }
.navbar.scrolled .lang-toggle { background: var(--color-surface-alt); color: var(--color-text); }
.navbar.scrolled .lang-toggle:hover { background: var(--color-border); }
.mobile-toggle { display: none; background: none; color: var(--color-white); font-size: 1.5rem; }
.navbar.scrolled .mobile-toggle { color: var(--color-dark); }

/* ── Mobile Nav ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { position: fixed; top: 0; right: -100%; width: 280px; height: 100vh; background: var(--color-dark); flex-direction: column; justify-content: center; gap: 24px; transition: right var(--transition); padding: 40px; }
  .nav-links.active { right: 0; }
  .nav-links a { color: rgba(255,255,255,0.8) !important; font-size: 1.1rem; }
  .nav-links a:hover { color: var(--color-white) !important; }
  .mobile-toggle { display: block; }
  .nav-actions .btn-accent { display: none; }
}

/* ── Hero ───────────────────────────────────────────────────── */
.hero { background: var(--color-dark); padding: 160px 0 100px; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -50%; right: -20%; width: 600px; height: 600px; background: radial-gradient(circle, rgba(79,70,229,0.15) 0%, transparent 70%); border-radius: 50%; }
.hero::after { content: ''; position: absolute; bottom: -30%; left: -10%; width: 500px; height: 500px; background: radial-gradient(circle, rgba(202,239,69,0.08) 0%, transparent 70%); border-radius: 50%; }
.hero .container { position: relative; z-index: 1; }
.hero-content { max-width: 720px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(202,239,69,0.12); color: var(--color-accent); padding: 6px 16px; border-radius: 50px; font-size: 0.8rem; font-weight: 600; margin-bottom: 24px; border: 1px solid rgba(202,239,69,0.2); }
.hero h1 { color: var(--color-white); margin-bottom: 20px; }
.hero p { color: var(--color-text-lighter); font-size: 1.15rem; line-height: 1.7; margin-bottom: 36px; max-width: 560px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ── App Cards Grid ─────────────────────────────────────────── */
.apps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }
.app-card { background: var(--color-white); border-radius: var(--radius-lg); padding: 28px 24px; border: 1px solid var(--color-border); transition: all var(--transition); position: relative; overflow: hidden; }
.app-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.app-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; }
.app-card[data-app="moqotest"]::before { background: var(--color-moqotest); }
.app-card[data-app="okulrandevu"]::before { background: var(--color-okulrandevu); }
.app-card[data-app="limonbis"]::before { background: var(--color-limonbis); }
.app-card[data-app="lcm"]::before { background: var(--color-lcm); }
.app-card[data-app="oys"]::before { background: var(--color-oys); }
.app-card-icon { width: 48px; height: 48px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.app-card-icon img { width: 28px; height: 28px; }
.app-card[data-app="moqotest"] .app-card-icon { background: rgba(239,68,68,0.1); }
.app-card[data-app="okulrandevu"] .app-card-icon { background: rgba(59,130,246,0.1); }
.app-card[data-app="limonbis"] .app-card-icon { background: rgba(34,197,94,0.1); }
.app-card[data-app="lcm"] .app-card-icon { background: rgba(139,92,246,0.1); }
.app-card[data-app="oys"] .app-card-icon { background: rgba(249,115,22,0.1); }
.app-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.app-card p { color: var(--color-text-light); font-size: 0.9rem; margin-bottom: 16px; }
.app-card-link { font-size: 0.85rem; font-weight: 600; color: var(--color-primary); display: inline-flex; align-items: center; gap: 4px; transition: gap var(--transition); }
.app-card-link:hover { gap: 8px; }
.app-badge-soon { position: absolute; top: 12px; right: 12px; background: var(--color-surface-alt); color: var(--color-text-light); font-size: 0.7rem; font-weight: 700; padding: 3px 10px; border-radius: 50px; text-transform: uppercase; letter-spacing: 0.05em; }

/* ── Features Grid ──────────────────────────────────────────── */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 32px; }
.feature-card { text-align: center; padding: 32px 24px; }
.feature-icon { width: 56px; height: 56px; border-radius: var(--radius-lg); background: var(--color-primary-light); display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 1.5rem; }
.feature-card h3 { margin-bottom: 10px; }
.feature-card p { color: var(--color-text-light); font-size: 0.9rem; }

/* ── Steps ──────────────────────────────────────────────────── */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; position: relative; }
.steps::before { content: ''; position: absolute; top: 40px; left: 20%; right: 20%; height: 2px; background: var(--color-border); }
.step { text-align: center; position: relative; z-index: 1; }
.step-number { width: 56px; height: 56px; border-radius: 50%; background: var(--color-primary); color: var(--color-white); font-weight: 800; font-size: 1.25rem; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; box-shadow: 0 4px 16px rgba(79,70,229,0.3); }
.step h3 { margin-bottom: 8px; }
.step p { color: var(--color-text-light); font-size: 0.9rem; }
@media (max-width: 768px) { .steps { grid-template-columns: 1fr; gap: 32px; } .steps::before { display: none; } }

/* ── CTA Banner ─────────────────────────────────────────────── */
.cta-banner { background: linear-gradient(135deg, var(--color-primary), #7C3AED); padding: 72px 0; text-align: center; }
.cta-banner h2 { color: var(--color-white); margin-bottom: 16px; }
.cta-banner p { color: rgba(255,255,255,0.8); margin-bottom: 32px; max-width: 500px; margin-left: auto; margin-right: auto; }

/* ── Pricing ────────────────────────────────────────────────── */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; max-width: 900px; margin: 0 auto; }
.pricing-card { background: var(--color-white); border-radius: var(--radius-lg); padding: 36px 28px; border: 1px solid var(--color-border); transition: all var(--transition); }
.pricing-card.featured { border-color: var(--color-primary); box-shadow: var(--shadow-lg); position: relative; }
.pricing-card.featured::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--color-primary); border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pricing-card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.pricing-price { font-size: 2.5rem; font-weight: 800; color: var(--color-dark); margin: 16px 0; }
.pricing-price span { font-size: 1rem; font-weight: 400; color: var(--color-text-light); }
.pricing-features { margin: 24px 0; }
.pricing-features li { padding: 8px 0; color: var(--color-text-light); font-size: 0.9rem; display: flex; align-items: center; gap: 10px; }
.pricing-features li::before { content: '✓'; color: var(--color-primary); font-weight: 700; }
.pricing-card .btn { width: 100%; margin-top: 8px; }

/* ── FAQ ────────────────────────────────────────────────────── */
.faq-list { max-width: 700px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-question { width: 100%; background: none; padding: 20px 0; display: flex; justify-content: space-between; align-items: center; font-size: 1rem; font-weight: 600; color: var(--color-dark); text-align: left; }
.faq-question::after { content: '+'; font-size: 1.5rem; color: var(--color-text-light); transition: transform var(--transition); }
.faq-item.active .faq-question::after { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-answer p { padding: 0 0 20px; color: var(--color-text-light); font-size: 0.9rem; line-height: 1.7; }

/* ── Contact Form ───────────────────────────────────────────── */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-form { background: var(--color-white); border-radius: var(--radius-lg); padding: 36px; border: 1px solid var(--color-border); box-shadow: var(--shadow-sm); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--color-dark); margin-bottom: 6px; }
.form-group input, .form-group textarea { width: 100%; padding: 12px 16px; border: 1px solid var(--color-border); border-radius: var(--radius-md); font-size: 0.95rem; transition: border-color var(--transition); background: var(--color-surface); }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(79,70,229,0.1); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-honeypot { position: absolute; left: -9999px; opacity: 0; height: 0; }
.form-status { padding: 12px 16px; border-radius: var(--radius-md); font-size: 0.9rem; margin-top: 16px; display: none; }
.form-status.success { display: block; background: rgba(34,197,94,0.1); color: #15803d; border: 1px solid rgba(34,197,94,0.2); }
.form-status.error { display: block; background: rgba(239,68,68,0.1); color: #dc2626; border: 1px solid rgba(239,68,68,0.2); }
.contact-info h3 { margin-bottom: 16px; }
.contact-info-item { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; color: var(--color-text-light); }
.contact-info-item .icon { width: 40px; height: 40px; border-radius: var(--radius-md); background: var(--color-primary-light); display: flex; align-items: center; justify-content: center; color: var(--color-primary); font-size: 1.1rem; }
@media (max-width: 768px) { .contact-grid { grid-template-columns: 1fr; gap: 40px; } }

/* ── App Detail Section (Uygulamalar page) ──────────────────── */
.app-detail { padding: 60px 0; border-bottom: 1px solid var(--color-border); }
.app-detail:last-child { border-bottom: none; }
.app-detail-header { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.app-detail-icon { width: 56px; height: 56px; border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; }
.app-detail-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-top: 20px; }
.app-detail-feature { display: flex; align-items: flex-start; gap: 10px; padding: 12px; border-radius: var(--radius-md); background: var(--color-surface); }
.app-detail-feature::before { content: '✓'; color: var(--color-primary); font-weight: 700; flex-shrink: 0; margin-top: 2px; }

/* ── Footer ─────────────────────────────────────────────────── */
.footer { background: var(--color-dark); color: rgba(255,255,255,0.6); padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand { }
.footer-logo { font-size: 1.4rem; font-weight: 800; color: var(--color-white); margin-bottom: 12px; }
.footer-logo span { color: var(--color-accent); }
.footer-brand p { font-size: 0.85rem; line-height: 1.6; max-width: 280px; }
.footer-column h4 { color: var(--color-white); font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 16px; }
.footer-column a { display: block; font-size: 0.85rem; padding: 4px 0; transition: color var(--transition); }
.footer-column a:hover { color: var(--color-accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 0.8rem; }
.footer-legal { display: flex; align-items: center; gap: 8px; }
.footer-legal a { transition: color var(--transition); }
.footer-legal a:hover { color: var(--color-accent); }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } .footer-bottom { flex-direction: column; gap: 12px; text-align: center; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

/* ── Page Header (inner pages) ──────────────────────────────── */
.page-header { background: var(--color-dark); padding: 140px 0 60px; text-align: center; }
.page-header h1 { color: var(--color-white); margin-bottom: 12px; }
.page-header p { color: var(--color-text-lighter); max-width: 500px; margin: 0 auto; }

/* ── Animations ─────────────────────────────────────────────── */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ── About Page ─────────────────────────────────────────────── */
.about-content { max-width: 700px; margin: 0 auto; }
.about-content p { margin-bottom: 20px; font-size: 1.05rem; line-height: 1.8; }
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 32px; }
.team-card { text-align: center; padding: 32px 20px; background: var(--color-white); border-radius: var(--radius-lg); border: 1px solid var(--color-border); }
.team-avatar { width: 80px; height: 80px; border-radius: 50%; background: var(--color-primary-light); margin: 0 auto 16px; display: flex; align-items: center; justify-content: center; font-size: 2rem; color: var(--color-primary); }
.team-card h3 { font-size: 1rem; margin-bottom: 4px; }
.team-card p { font-size: 0.85rem; color: var(--color-text-light); }

/* ── Legal Pages ───────────────────────────────────────────── */
.legal-content { max-width: 740px; margin: 0 auto; }
.legal-content h2 { font-size: 1.2rem; font-weight: 700; margin: 32px 0 12px; color: var(--color-dark); }
.legal-content h2:first-child { margin-top: 0; }
.legal-content p { font-size: 0.95rem; line-height: 1.8; margin-bottom: 12px; color: var(--color-text); }
.legal-content ul { margin: 8px 0 16px 0; }
.legal-content li { font-size: 0.95rem; line-height: 1.8; padding: 4px 0 4px 20px; position: relative; color: var(--color-text); }
.legal-content li::before { content: '•'; position: absolute; left: 0; color: var(--color-primary); font-weight: 700; }
.legal-content a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 2px; }
.legal-content a:hover { color: var(--color-primary-hover); }