/* MAMA OS Website - Playful/Soft Design System
   Based on MAMA Icon Color Palette:
   - Primary Yellow: #FFCE00
   - Background Lavender: #EDDBF7
   - Text Black: #131313
   - Blush Pink: rgba(255,153,153,0.5)
*/

:root {
  /* Core Colors from MAMA Icon */
  --yellow: #FFCE00;
  --yellow-hover: #E6B800;
  --lavender: #EDDBF7;
  --lavender-light: #F5EBF9;
  --lavender-dark: #D4C4E0;
  --black: #131313;
  --blush: rgba(255,153,153,0.5);
  --blush-solid: #FF9999;

  /* Functional */
  --white: #FFFFFF;
  --gray-100: #F8F8F8;
  --gray-200: #E8E8E8;
  --gray-500: #888888;

  /* Typography */
  --font-display: 'Fredoka', sans-serif;
  --font-body: 'Nunito', sans-serif;

  /* Spacing */
  --max-width: 1200px;
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-soft: 0 4px 20px rgba(19, 19, 19, 0.08);
  --shadow-medium: 0 8px 32px rgba(19, 19, 19, 0.12);
  --shadow-float: 0 12px 40px rgba(19, 19, 19, 0.15);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--black);
  background: var(--lavender);
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Background Decorations */
.bg-decor {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.6;
  animation: float 20s ease-in-out infinite;
}

.blob-1 {
  width: 400px;
  height: 400px;
  background: var(--yellow);
  top: -100px;
  right: -100px;
  animation-delay: 0s;
}

.blob-2 {
  width: 300px;
  height: 300px;
  background: var(--blush-solid);
  bottom: 20%;
  left: -50px;
  animation-delay: -7s;
}

.blob-3 {
  width: 250px;
  height: 250px;
  background: var(--lavender-dark);
  top: 50%;
  right: 10%;
  animation-delay: -14s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 1.5rem;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(19, 19, 19, 0.08);
  box-shadow: 0 2px 8px rgba(19, 19, 19, 0.04);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--black);
}

.logo-icon {
  width: 40px;
  height: 40px;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-weight: 600;
  color: var(--black);
  opacity: 0.7;
  transition: opacity 0.2s, color 0.2s;
}

.nav-links a:hover {
  opacity: 1;
  color: var(--yellow-hover);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(80px + 2rem) 1.5rem 4rem;
}

.hero-content {
  max-width: 800px;
}

.hero-mascot {
  position: relative;
  display: inline-block;
  margin-bottom: 2rem;
}

.mascot-img {
  width: 200px;
  height: 200px;
  animation: bounce 3s ease-in-out infinite;
  filter: drop-shadow(0 20px 40px rgba(255, 206, 0, 0.3));
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

.speech-bubble {
  position: absolute;
  top: -20px;
  right: -140px;
  background: var(--white);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
  animation: pop 0.5s ease-out 0.5s both;
}

.speech-bubble::before {
  content: '';
  position: absolute;
  left: -10px;
  top: 50%;
  transform: translateY(-50%);
  border: 8px solid transparent;
  border-right-color: var(--white);
}

@keyframes pop {
  0% { opacity: 0; transform: scale(0.8); }
  100% { opacity: 1; transform: scale(1); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.title-line {
  display: block;
  color: var(--gray-500);
}

.title-accent {
  display: block;
  background: linear-gradient(135deg, var(--yellow), var(--blush-solid));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-size: 1.25rem;
  color: var(--black);
  opacity: 0.8;
  margin-bottom: 2rem;
}

.hero-tagline strong {
  color: var(--black);
  opacity: 1;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  transition: all 0.2s ease;
  border: 2px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--yellow);
  color: var(--black);
  box-shadow: 0 4px 20px rgba(255, 206, 0, 0.4);
}

.btn-primary:hover {
  background: var(--yellow-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 206, 0, 0.5);
}

.btn-outline {
  background: var(--white);
  color: var(--black);
  border-color: var(--gray-200);
}

.btn-outline:hover {
  border-color: var(--yellow);
  background: var(--lavender-light);
}

.btn-large {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

/* Sections */
.section {
  padding: 5rem 1.5rem;
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--black);
}

/* About Section */
.section-about {
  background: var(--white);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.comparison-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.comparison-card {
  padding: 2rem;
  border-radius: var(--radius-md);
  text-align: center;
}

.comparison-old {
  background: var(--gray-100);
  border: 2px dashed var(--gray-200);
}

.comparison-new {
  background: linear-gradient(135deg, var(--lavender-light), var(--white));
  border: 2px solid var(--yellow);
  box-shadow: var(--shadow-medium);
}

.comparison-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.comparison-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.comparison-card p {
  color: var(--gray-500);
  margin-bottom: 1rem;
}

.comparison-card ul {
  list-style: none;
  text-align: left;
}

.comparison-card li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.comparison-old li::before {
  content: '✗';
  position: absolute;
  left: 0;
  color: var(--blush-solid);
}

.comparison-new li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--yellow-hover);
  font-weight: bold;
}

/* Screenshots Section */
.section-screenshots {
  background: linear-gradient(180deg, var(--white), var(--lavender-light));
  padding-bottom: 4rem;
}

.section-subtitle {
  text-align: center;
  color: var(--gray-500);
  margin-top: -1rem;
  margin-bottom: 3rem;
  font-size: 1.1rem;
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

@media (max-width: 1024px) {
  .screenshots-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

@media (max-width: 600px) {
  .screenshots-grid {
    grid-template-columns: 1fr;
    max-width: 320px;
  }
}

.screenshot-card {
  text-align: center;
}

.phone-frame {
  background: var(--black);
  border-radius: 24px;
  padding: 8px;
  box-shadow: var(--shadow-float);
  margin-bottom: 1rem;
  overflow: hidden;
}

.phone-frame img {
  width: 100%;
  height: auto;
  border-radius: 16px;
  display: block;
}

.screenshot-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
  color: var(--black);
}

.screenshot-card p {
  font-size: 0.85rem;
  color: var(--gray-500);
  line-height: 1.4;
}

/* Packages Section */
.section-packages {
  background: var(--white);
}

.packages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.package-card {
  background: var(--lavender-light);
  border-radius: var(--radius-md);
  padding: 2rem;
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
}

.package-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
}

.package-featured {
  background: linear-gradient(135deg, var(--yellow), #FFE066);
  border: 3px solid var(--yellow-hover);
}

.package-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background: var(--black);
  color: var(--white);
  padding: 0.25rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.package-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.package-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.package-desc {
  color: var(--gray-500);
  font-weight: 600;
  margin-bottom: 1rem;
}

.package-features {
  list-style: none;
  margin-bottom: 1.5rem;
}

.package-features li {
  padding: 0.4rem 0;
  padding-left: 1.5rem;
  position: relative;
  font-size: 0.95rem;
}

.package-features li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--yellow-hover);
  font-weight: bold;
}

.code-block {
  background: var(--black);
  color: var(--white);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  overflow-x: auto;
}

/* Features Section */
.section-features {
  background: var(--lavender);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--gray-500);
  font-size: 0.95rem;
}

/* Documentation Section */
.section-docs {
  background: var(--white);
}

.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.doc-card {
  background: var(--lavender-light);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  border: 2px solid transparent;
  display: block;
}

.doc-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
  border-color: var(--yellow);
}

.doc-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.doc-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--black);
}

.doc-card p {
  color: var(--gray-500);
  font-size: 0.95rem;
}

/* Install Section */
.section-install {
  background: var(--lavender);
}

.install-steps {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 600px;
  margin: 0 auto 2rem;
}

.install-step {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.step-number {
  width: 48px;
  height: 48px;
  background: var(--yellow);
  color: var(--black);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
}

.step-content {
  flex: 1;
}

.step-content h3 {
  font-family: var(--font-display);
  margin-bottom: 0.5rem;
}

.install-note {
  text-align: center;
  color: var(--gray-500);
}

/* CTA Section */
.section-cta {
  background: linear-gradient(135deg, var(--yellow), #FFE066);
  text-align: center;
  padding: 4rem 1.5rem;
}

.cta-mascot {
  margin-bottom: 1.5rem;
}

.cta-mascot-img {
  width: 120px;
  height: 120px;
  animation: bounce 3s ease-in-out infinite;
}

.section-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 0.5rem;
  color: var(--black);
}

.section-cta p {
  color: var(--black);
  opacity: 0.8;
  margin-bottom: 2rem;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.section-cta .btn-primary {
  background: var(--black);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(19, 19, 19, 0.3);
}

.section-cta .btn-primary:hover {
  background: #2a2a2a;
}

.section-cta .btn-outline {
  background: transparent;
  border-color: var(--black);
}

.section-cta .btn-outline:hover {
  background: rgba(19, 19, 19, 0.1);
}

/* Footer */
.footer {
  background: var(--lavender-dark);
  padding: 2rem 1.5rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-weight: 700;
}

.footer-logo {
  width: 32px;
  height: 32px;
}

.footer-version {
  font-size: 0.8rem;
  color: var(--gray-500);
  font-weight: 400;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  font-weight: 600;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.footer-links a:hover {
  opacity: 1;
}

.footer-meta {
  font-size: 0.9rem;
  color: var(--gray-500);
}

/* Mobile Navigation Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 101;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 3px;
  background: var(--black);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle-open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.nav-toggle-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle-open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1rem 1.5rem;
    gap: 0;
    box-shadow: var(--shadow-medium);
    border-top: 1px solid var(--gray-200);
  }

  .nav-links.nav-open {
    display: flex;
  }

  .nav-links a {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-100);
  }

  .nav-links a:last-child {
    border-bottom: none;
  }

  .hero {
    min-height: auto;
    padding-top: calc(80px + 3rem);
    padding-bottom: 3rem;
  }

  .speech-bubble {
    position: static;
    margin-top: 1rem;
  }

  .speech-bubble::before {
    display: none;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }
}