/* ==========================================================================
   PolarBear - Design System & Global Styles
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* Colors - Icy Blue / Teal palette */
  --color-bg-primary: #F0F9FF;
  --color-bg-dark: #0F172A;
  --color-bg-card: #ffffff;
  --color-text-primary: #1E293B;
  --color-text-secondary: #64748B;
  --color-text-light: #ffffff;
  --color-accent: #38BDF8;
  --color-accent-hover: #0EA5E9;
  --color-accent-secondary: #14B8A6;
  --color-star: #FBBF24;
  --color-border: rgba(0, 0, 0, 0.08);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;

  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  --spacing-24: 6rem;

  /* 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 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: 200ms ease;
  --transition-slow: 300ms ease;

  /* Container */
  --container-max: 1200px;
  --container-padding: var(--spacing-6);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
}

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;
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(240, 249, 255, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

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

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text-primary);
}

.header__logo-icon {
  width: 32px;
  height: 32px;
}

.header__nav {
  display: none;
}

.header__nav-list {
  display: flex;
  gap: var(--spacing-8);
}

.header__nav-link {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
}

.header__nav-link:hover {
  color: var(--color-accent);
}

.header__cta {
  display: flex;
  gap: var(--spacing-3);
}

@media (min-width: 768px) {
  .header__nav {
    display: block;
  }
}

/* --------------------------------------------------------------------------
   App Store Buttons (Official Apple Badge Style)
   -------------------------------------------------------------------------- */
.app-store-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: 8px 16px;
  background: #000000;
  color: #ffffff;
  border-radius: 8px;
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  text-decoration: none;
}

.app-store-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.app-store-btn__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.app-store-btn__text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.2;
}

.app-store-btn__text-top {
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.app-store-btn__text-bottom {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* Larger hero button on mobile (15% bigger) */
.hero__cta .app-store-btn {
  padding: 10px 20px;
}

.hero__cta .app-store-btn__icon {
  width: 28px;
  height: 28px;
}

.hero__cta .app-store-btn__text-top {
  font-size: 10px;
}

.hero__cta .app-store-btn__text-bottom {
  font-size: 21px;
}

/* Smaller version for footer */
.app-store-btn--small {
  padding: 6px 12px;
}

.app-store-btn--small .app-store-btn__icon {
  width: 20px;
  height: 20px;
}

.app-store-btn--small .app-store-btn__text-top {
  font-size: 8px;
}

.app-store-btn--small .app-store-btn__text-bottom {
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  padding: calc(72px + var(--spacing-8)) 0 var(--spacing-8);
  min-height: auto;
  display: flex;
  align-items: center;
}

.hero__inner {
  display: grid;
  gap: var(--spacing-12);
  align-items: center;
}

.hero__content {
  text-align: left;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-4);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-6);
  box-shadow: var(--shadow-sm);
}

.hero__badge-avatars {
  display: flex;
  margin-right: var(--spacing-1);
}

.hero__badge-avatar {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-bg-card);
  margin-left: -8px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-secondary));
}

.hero__badge-avatar:first-child {
  margin-left: 0;
}

.hero__badge-star {
  color: var(--color-star);
}

.hero__title {
  font-size: clamp(2.9rem, 10vw, 3.5rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: var(--spacing-8);
  letter-spacing: -0.02em;
}

.hero__title-highlight {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  max-width: 500px;
  margin: 0 0 var(--spacing-8);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  justify-content: flex-start;
}

.hero__phones {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: var(--spacing-2);
  position: relative;
  margin-top: var(--spacing-8);
  padding: 0 var(--spacing-4);
}

.hero__phone-combo {
  width: 100%;
  max-width: 420px;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

@media (min-width: 768px) {
  .hero__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
  }

  .hero__content {
    text-align: left;
  }

  .hero__title {
    font-size: var(--font-size-5xl);
  }

  .hero__description {
    margin: 0 0 var(--spacing-8);
  }

  .hero__cta {
    justify-content: flex-start;
  }

  .hero__phones {
    margin-top: 0;
  }
}

@media (min-width: 1024px) {
  .hero__title {
    font-size: var(--font-size-6xl);
  }
}

/* --------------------------------------------------------------------------
   Social Proof / Who It's For Section
   -------------------------------------------------------------------------- */
.social-proof {
  padding: var(--spacing-16) 0;
  text-align: center;
}

.social-proof__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--spacing-8);
}

.social-proof__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-6);
}

.testimonial-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-6);
  text-align: left;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.testimonial-card__header {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
}

.testimonial-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-secondary));
}

.testimonial-card__name {
  font-weight: 600;
}

.testimonial-card__handle {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.testimonial-card__content {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Features Section
   -------------------------------------------------------------------------- */
.features {
  padding: var(--spacing-20) 0;
}

.features__header {
  text-align: center;
  margin-bottom: var(--spacing-12);
}

.features__title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  margin-bottom: var(--spacing-4);
}

.features__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-8);
}

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-6);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  text-align: left;
}

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

.feature-card__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.04);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-4);
  color: var(--color-text-primary);
}

.feature-card__icon svg {
  width: 20px;
  height: 20px;
}

.feature-card__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-2);
}

.feature-card__description {
  color: var(--color-text-secondary);
  line-height: 1.6;
  font-size: var(--font-size-sm);
}

@media (min-width: 768px) {
  .features__title {
    font-size: var(--font-size-4xl);
  }

  .feature-card {
    padding: var(--spacing-10);
    text-align: center;
    border-radius: var(--radius-2xl);
  }

  .feature-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px -10px rgba(56, 189, 248, 0.15);
  }

  .feature-card__icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #38BDF8 0%, #14B8A6 100%);
    border-radius: var(--radius-xl);
    margin: 0 auto var(--spacing-6);
    font-size: 2.5rem;
    box-shadow: 0 10px 30px -5px rgba(56, 189, 248, 0.4);
  }

  .feature-card__title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-3);
  }

  .feature-card__description {
    font-size: var(--font-size-base);
    line-height: 1.7;
  }
}

/* --------------------------------------------------------------------------
   Exit Strategies Section
   -------------------------------------------------------------------------- */
.exit-strategies {
  padding: var(--spacing-20) 0;
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  position: relative;
  overflow: hidden;
}

.exit-strategies::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.08) 0%, transparent 50%);
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
    opacity: 0.5;
  }

  50% {
    transform: scale(1.1);
    opacity: 0.8;
  }
}

.exit-strategies__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--spacing-12);
  align-items: center;
}

.exit-strategies__title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  margin-bottom: var(--spacing-4);
}

.exit-strategies__description {
  font-size: var(--font-size-lg);
  opacity: 0.85;
  max-width: 500px;
  line-height: 1.7;
  margin-bottom: var(--spacing-6);
}

.exit-strategies__categories {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
}

.exit-strategies__tag {
  display: inline-block;
  padding: var(--spacing-2) var(--spacing-4);
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-accent);
}

.exit-strategies__visual {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.exit-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--spacing-5);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.exit-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  background: rgba(255, 255, 255, 0.08);
}

.exit-card__category {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  margin-bottom: var(--spacing-1);
}

.exit-card__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-2);
}

.exit-card__tip {
  font-size: var(--font-size-sm);
  opacity: 0.7;
  font-style: italic;
  line-height: 1.5;
}

@media (min-width: 768px) {
  .exit-strategies__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
  }

  .exit-strategies__title {
    font-size: var(--font-size-4xl);
  }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--color-bg-primary);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-12) 0;
}

.footer__inner {
  display: grid;
  gap: var(--spacing-8);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--font-size-xl);
  font-weight: 700;
}

.footer__logo-icon {
  width: 28px;
  height: 28px;
}

.footer__download-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-2);
}

.footer__download-buttons {
  display: flex;
  gap: var(--spacing-3);
}

.footer__links-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-8);
}

.footer__links-section h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--spacing-4);
  color: var(--color-text-primary);
}

.footer__links-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.footer__link {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-text-primary);
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  padding-top: var(--spacing-8);
  border-top: 1px solid var(--color-border);
  margin-top: var(--spacing-8);
}

.footer__copyright {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.footer__social {
  display: flex;
  gap: var(--spacing-4);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.footer__social-link:hover {
  background: var(--color-text-primary);
  color: var(--color-text-light);
  border-color: var(--color-text-primary);
}

@media (min-width: 768px) {
  .footer__inner {
    grid-template-columns: 1.5fr 2fr;
  }

  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

/* --------------------------------------------------------------------------
   Legal Pages
   -------------------------------------------------------------------------- */
.legal {
  padding: calc(72px + var(--spacing-12)) 0 var(--spacing-16);
  min-height: 100vh;
}

.legal__header {
  margin-bottom: var(--spacing-8);
}

.legal__title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  margin-bottom: var(--spacing-2);
}

.legal__updated {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.legal__content {
  max-width: 800px;
}

.legal__content h2 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin: var(--spacing-8) 0 var(--spacing-4);
}

.legal__content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-4);
  line-height: 1.7;
}

.legal__content ul {
  list-style: disc;
  padding-left: var(--spacing-6);
  margin-bottom: var(--spacing-4);
}

.legal__content li {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-2);
}

.legal__content a {
  color: var(--color-accent);
}

.legal__content a:hover {
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Features Showcase Section
   -------------------------------------------------------------------------- */
.features-showcase {
  padding: var(--spacing-20) 0;
  background: linear-gradient(180deg, var(--color-bg-primary) 0%, rgba(56, 189, 248, 0.04) 100%);
}

.features-showcase__header {
  text-align: center;
  margin-bottom: var(--spacing-12);
}

.features-showcase__title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  margin-bottom: var(--spacing-4);
}

.features-showcase__inner {
  display: grid;
  gap: var(--spacing-12);
  align-items: center;
}

.features-showcase__phone-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-6);
}

.features-showcase__phone-wrapper {
  position: relative;
  max-width: 280px;
}

.features-showcase__phone-img {
  width: 100%;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.features-showcase__phone-img.hidden {
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
  transform: scale(0.95);
}

.features-showcase__phone-img.active {
  opacity: 1;
  position: relative;
  transform: scale(1);
}

.features-showcase__dots {
  display: flex;
  gap: var(--spacing-2);
  justify-content: center;
}

.features-showcase__dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.features-showcase__dot:hover {
  background: var(--color-text-secondary);
}

.features-showcase__dot.active {
  background: var(--color-text-primary);
  width: 24px;
}

.features-showcase__cards {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.showcase-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-6);
  cursor: pointer;
  transition: all var(--transition-base);
}

.showcase-card:hover {
  box-shadow: var(--shadow-md);
}

.showcase-card.active {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent), var(--shadow-md);
}

.showcase-card__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-2);
}

.showcase-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

@media (min-width: 768px) {
  .features-showcase__inner {
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-16);
  }

  .features-showcase__title {
    font-size: var(--font-size-4xl);
  }

  .features-showcase__phone-wrapper {
    max-width: 320px;
  }
}

/* --------------------------------------------------------------------------
   Animation Classes
   -------------------------------------------------------------------------- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 {
  transition-delay: 0.1s;
}

.delay-2 {
  transition-delay: 0.2s;
}

.delay-3 {
  transition-delay: 0.3s;
}

.delay-4 {
  transition-delay: 0.4s;
}