/* ===================================
   PocketLLM Lite - Website Styles
   Color Palette: Sandy Yellow & Ebony Clay
   =================================== */

/* CSS Variables */
:root {
  /* Primary Colors */
  --sandy-yellow: #FFEF4D;
  --sandy-yellow-light: #FFF7A0;
  --sandy-yellow-dark: #E6D845;
  
  /* Dark Colors */
  --ebony-clay: #2A428C;
  --dark-primary: #192230;
  --dark-secondary: #2c2f38;
  --dark-tertiary: #3d474e;
  
  /* Text Colors */
  --text-dark: #1a1a1a;
  --text-light: #ffffff;
  --text-muted: #6b7280;
  --text-subtle: #9ca3af;
  
  /* Background Colors */
  --bg-light: #fafafa;
  --bg-white: #ffffff;
  --bg-cream: #fffef5;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-dark);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 600;
}

p {
  color: var(--text-muted);
  line-height: 1.7;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ===================================
   HEADER / NAVIGATION
   =================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: box-shadow var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.nav__logo-img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
}

.nav__logo-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark-primary);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav__link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.nav__link:hover {
  color: var(--dark-primary);
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--dark-primary);
  color: var(--text-light);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.nav__cta:hover {
  background-color: var(--dark-secondary);
  transform: translateY(-1px);
}

.nav__cta svg {
  width: 16px;
  height: 16px;
}

/* Mobile Menu Toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-sm);
}

.nav__toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--dark-primary);
  transition: all var(--transition-fast);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
  padding-top: 140px;
  padding-bottom: var(--spacing-3xl);
  background: linear-gradient(180deg, var(--bg-cream) 0%, var(--bg-white) 100%);
  text-align: center;
  overflow: hidden;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-md);
  background-color: var(--sandy-yellow-light);
  color: var(--dark-primary);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-lg);
}

.hero__subtitle {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-style: italic;
  color: var(--text-muted);
  margin-bottom: var(--spacing-md);
}

.hero__title {
  max-width: 800px;
  margin: 0 auto var(--spacing-lg);
}

.hero__description {
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
  font-size: 1.125rem;
  color: var(--text-muted);
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  background-color: var(--dark-primary);
  color: var(--text-light);
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-md);
}

.hero__cta:hover {
  background-color: var(--dark-secondary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.hero__cta svg {
  width: 20px;
  height: 20px;
}

.hero__image-container {
  margin-top: var(--spacing-3xl);
  position: relative;
}

.hero__image-wrapper {
  max-width: 320px;
  margin: 0 auto;
  position: relative;
}

.hero__phone-mockup {
  width: 100%;
  border-radius: 32px;
  box-shadow: var(--shadow-xl);
}

.hero__glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--sandy-yellow-light) 0%, transparent 70%);
  opacity: 0.4;
  z-index: -1;
  pointer-events: none;
}

/* ===================================
   FEATURES SECTION
   =================================== */
.features {
  padding: var(--spacing-3xl) 0;
  background-color: var(--bg-white);
}

.section__header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section__title {
  margin-bottom: var(--spacing-md);
}

.section__subtitle {
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.125rem;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.feature-card {
  padding: var(--spacing-xl);
  background-color: var(--bg-light);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

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

.feature-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--sandy-yellow);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
}

.feature-card__icon svg {
  width: 24px;
  height: 24px;
  color: var(--dark-primary);
}

.feature-card__title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--dark-primary);
}

.feature-card__description {
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* ===================================
   ABOUT SECTION
   =================================== */
.about {
  padding: var(--spacing-3xl) 0;
  background-color: var(--dark-primary);
  color: var(--text-light);
}

.about .section__title {
  color: var(--text-light);
}

.about .section__subtitle {
  color: rgba(255, 255, 255, 0.7);
}

.about__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  margin-top: var(--spacing-2xl);
}

.about__text h3 {
  color: var(--sandy-yellow);
  margin-bottom: var(--spacing-md);
}

.about__text p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-lg);
}

.about__list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.about__list-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  color: rgba(255, 255, 255, 0.9);
}

.about__list-item svg {
  width: 20px;
  height: 20px;
  color: var(--sandy-yellow);
  flex-shrink: 0;
}

.about__image {
  display: flex;
  justify-content: center;
}

.about__image img {
  max-width: 280px;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
}

/* ===================================
   DOWNLOAD SECTION
   =================================== */
.download {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, var(--sandy-yellow-light) 0%, var(--sandy-yellow) 100%);
  text-align: center;
}

.download__content {
  max-width: 600px;
  margin: 0 auto;
}

.download__title {
  color: var(--dark-primary);
  margin-bottom: var(--spacing-md);
}

.download__description {
  color: var(--dark-secondary);
  margin-bottom: var(--spacing-xl);
  font-size: 1.125rem;
}

.download__buttons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.download__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  background-color: var(--dark-primary);
  color: var(--text-light);
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.download__btn:hover {
  background-color: var(--dark-secondary);
  transform: translateY(-2px);
}

.download__btn svg {
  width: 24px;
  height: 24px;
}

.download__note {
  margin-top: var(--spacing-lg);
  font-size: 0.875rem;
  color: var(--dark-tertiary);
}

/* ===================================
   FOOTER
   =================================== */
.footer {
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  background-color: var(--dark-primary);
  color: var(--text-light);
}

.footer__content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer__brand {
  max-width: 300px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.footer__logo img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
}

.footer__logo span {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
}

.footer__brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9375rem;
}

.footer__section h4 {
  color: var(--text-light);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-lg);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer__link {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--sandy-yellow);
}

.footer__bottom {
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer__copyright {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
}

.footer__social {
  display: flex;
  gap: var(--spacing-md);
}

.footer__social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  color: rgba(255, 255, 255, 0.7);
  transition: all var(--transition-fast);
}

.footer__social a:hover {
  background-color: var(--sandy-yellow);
  color: var(--dark-primary);
}

.footer__social svg {
  width: 20px;
  height: 20px;
}

/* ===================================
   LEGAL PAGES (Privacy & Terms)
   =================================== */
.legal-page {
  padding-top: 120px;
  padding-bottom: var(--spacing-3xl);
  min-height: 100vh;
  background-color: var(--bg-light);
}

.legal-page__header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.legal-page__title {
  margin-bottom: var(--spacing-md);
}

.legal-page__updated {
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.legal-page__content {
  max-width: 800px;
  margin: 0 auto;
  background-color: var(--bg-white);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

.legal-page__content h2 {
  font-size: 1.5rem;
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
  color: var(--dark-primary);
}

.legal-page__content h2:first-child {
  margin-top: 0;
}

.legal-page__content p {
  margin-bottom: var(--spacing-md);
  color: var(--text-dark);
}

.legal-page__content ul {
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-xl);
}

.legal-page__content li {
  color: var(--text-dark);
  margin-bottom: var(--spacing-sm);
  position: relative;
}

.legal-page__content li::before {
  content: "•";
  color: var(--sandy-yellow-dark);
  font-weight: bold;
  position: absolute;
  left: -1rem;
}

.legal-page__content a {
  color: var(--ebony-clay);
  text-decoration: underline;
}

.legal-page__content a:hover {
  color: var(--dark-primary);
}

/* ===================================
   UTILITIES
   =================================== */
.text-center { text-align: center; }
.text-accent { color: var(--sandy-yellow); }

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 1024px) {
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer__content {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
  }
  
  .about__content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .about__image {
    order: -1;
  }
}

@media (max-width: 768px) {
  .nav__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--bg-white);
    padding: var(--spacing-lg);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: var(--shadow-lg);
  }
  
  .nav__links.active {
    display: flex;
  }
  
  .nav__toggle {
    display: flex;
  }
  
  .features__grid {
    grid-template-columns: 1fr;
  }
  
  .footer__content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer__brand {
    max-width: 100%;
    margin: 0 auto;
  }
  
  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .hero__title {
    font-size: 2rem;
  }
  
  .download__buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .legal-page__content {
    padding: var(--spacing-lg);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .hero {
    padding-top: 100px;
  }
  
  .nav {
    height: 64px;
  }
  
  .legal-page {
    padding-top: 100px;
  }
}