/* Knockzy - Premium Design System & Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  --primary: #5B4BFF;
  --primary-dark: #4334E0;
  --primary-light: #EEECFF;
  --primary-glow: rgba(91, 75, 255, 0.35);
  
  --accent: #FFC83D;
  --accent-dark: #E5B025;
  --accent-glow: rgba(255, 200, 61, 0.3);

  --bg-dark: #0B0A16;
  --bg-dark-surface: #131224;
  --bg-dark-card: rgba(26, 24, 48, 0.7);
  --bg-light: #F7F7FA;

  --text-primary: #0F0E17;
  --text-secondary: #5A5968;
  --text-muted: #8E8D9A;
  --text-light: #FFFFFF;

  --border-light: #EBEBF0;
  --border-dark: rgba(255, 255, 255, 0.08);
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(255, 255, 255, 0.4);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 40px rgba(91, 75, 255, 0.15);
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Container */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header & Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: all var(--transition-normal);
  background: rgba(11, 10, 22, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-dark);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #fff;
}

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: 0 4px 15px var(--primary-glow);
  background: rgba(91, 75, 255, 0.15);
}

.logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: #fff;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  border: none;
  transition: all var(--transition-normal);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 8px 25px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px var(--primary-glow);
  background: linear-gradient(135deg, #6c5dff, var(--primary));
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  border: 1px solid var(--border-dark);
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

/* Hero Section */
.hero {
  padding: 10rem 0 6rem;
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 50% 20%, rgba(91, 75, 255, 0.18) 0%, rgba(11, 10, 22, 0) 70%);
}

.hero-content {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(91, 75, 255, 0.12);
  border: 1px solid rgba(91, 75, 255, 0.3);
  color: #A39BFF;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  letter-spacing: -1.5px;
}

.hero-title span {
  background: linear-gradient(135deg, #FFFFFF 30%, var(--primary-light) 60%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  background: var(--bg-dark-surface);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  color: #fff;
  transition: all var(--transition-normal);
}

.store-badge:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.store-badge-text {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.store-badge-subtitle {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.store-badge-title {
  font-size: 1rem;
  font-weight: 700;
}

/* Phone Mockup Frame */
.mockup-container {
  position: relative;
  display: flex;
  justify-content: center;
}

.mockup-glow {
  position: absolute;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  filter: blur(40px);
  z-index: 1;
}

.phone-mockup {
  position: relative;
  z-index: 2;
  width: 300px;
  background: #19182C;
  border: 8px solid #2B2945;
  border-radius: 40px;
  padding: 1.5rem 1rem;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), 0 0 30px var(--primary-glow);
  overflow: hidden;
}

.phone-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.phone-card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-bottom: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.phone-card-title {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.phone-card-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.floating-tag {
  position: absolute;
  z-index: 3;
  padding: 0.6rem 1.2rem;
  background: rgba(22, 21, 43, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
  animation: float 4s ease-in-out infinite;
}

.floating-tag-1 {
  top: 15%;
  left: -20px;
}

.floating-tag-2 {
  bottom: 20%;
  right: -20px;
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

/* Features Section */
.section {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}

.section-subtitle {
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: rgba(91, 75, 255, 0.4);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), 0 0 20px rgba(91, 75, 255, 0.15);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: rgba(91, 75, 255, 0.12);
  border: 1px solid rgba(91, 75, 255, 0.3);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary-light);
  margin-bottom: 1.5rem;
}

.feature-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-text {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Category Tabs Section */
.vibe-section {
  background: var(--bg-dark-surface);
  border-top: 1px solid var(--border-dark);
  border-bottom: 1px solid var(--border-dark);
}

.vibe-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-dark);
  color: var(--text-muted);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn.active,
.tab-btn:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 4px 15px var(--primary-glow);
}

.vibe-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.vibe-card {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.vibe-tag {
  align-self: flex-start;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 200, 61, 0.15);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
}

/* Steps Section */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  position: relative;
}

.step-card {
  text-align: center;
  padding: 2.5rem 2rem;
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
}

.step-number {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-weight: 800;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
}

/* CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, rgba(91, 75, 255, 0.25), rgba(255, 200, 61, 0.15)), var(--bg-dark-surface);
  border: 1px solid var(--primary-glow);
  border-radius: 32px;
  padding: 4rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin: 4rem 0;
}

.cta-banner h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.cta-banner p {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 2rem;
  font-size: 1.1rem;
}

/* Footer */
footer {
  background: #07060F;
  border-top: 1px solid var(--border-dark);
  padding: 5rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 4rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 1rem;
  max-width: 320px;
}

.footer-col-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: #fff;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-dark);
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Legal Pages Styling (Terms & Privacy) */
.legal-page {
  padding: 8rem 0 5rem;
  background: var(--bg-dark);
}

.legal-header {
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--border-dark);
  padding-bottom: 2rem;
}

.legal-title {
  font-size: 2.75rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.legal-updated {
  color: var(--primary-light);
  font-size: 0.9rem;
  font-weight: 600;
}

.legal-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3.5rem;
  align-items: start;
}

.legal-sidebar {
  position: sticky;
  top: 6rem;
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.toc-title {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toc-link {
  font-size: 0.875rem;
  color: var(--text-muted);
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  display: block;
}

.toc-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.legal-body {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 3rem;
}

.legal-section {
  margin-bottom: 2.5rem;
}

.legal-section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 0.5rem;
}

.legal-section p, 
.legal-section ul {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

.legal-section ul {
  padding-left: 1.5rem;
}

.legal-section li {
  margin-bottom: 0.5rem;
}

.highlight-box {
  background: rgba(91, 75, 255, 0.1);
  border-left: 4px solid var(--primary);
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.5rem 0;
}

.warning-box {
  background: rgba(239, 68, 68, 0.1);
  border-left: 4px solid #EF4444;
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.5rem 0;
  color: #FCA5A5;
}

/* Responsive Utilities */
@media (max-width: 992px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .legal-layout {
    grid-template-columns: 1fr;
  }

  .legal-sidebar {
    display: none;
  }
}

@media (max-width: 600px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .nav-links {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .legal-body {
    padding: 1.75rem;
  }
}