/* ==========================================================================
   AppNova Persian — Responsive Design System
   Mobile-first approach with progressive enhancement for larger screens
   ========================================================================== */

/* ==========================================================================
   Mobile-First: Base Styles (< 640px)
   ========================================================================== */

:root {
  /* Mobile breakpoints */
  --bp-xs: 320px;
  --bp-sm: 480px;
  --bp-md: 640px;
  --bp-lg: 768px;
  --bp-xl: 1024px;
  --bp-2xl: 1280px;
  --bp-3xl: 1536px;

  /* Responsive spacing adjustments */
  --anova-section-gap: var(--space-7);
  --anova-container-padding: var(--anova-padding-mobile);
  --anova-content-width: 100%;
}

/* Ensure proper scaling on mobile */
html, body {
  width: 100%;
  overflow-x: hidden;
}

/* Section Headers - Mobile First */
.anova-section__header {
  text-align: center;
  margin-bottom: clamp(var(--space-6), 5vw, var(--space-8));
}

.anova-section__header h2 {
  font-size: clamp(24px, 5vw, 40px);
  margin: 0 0 var(--space-4) 0;
  line-height: 1.2;
}

.anova-section__header p {
  font-size: clamp(14px, 3vw, 16px);
  color: var(--anova-text-muted);
  max-width: 60ch;
  margin: 0 auto;
  line-height: 1.6;
}

/* Hero Section - Mobile First */
.anova-hero {
  padding: var(--anova-section-gap-mobile) var(--anova-padding-mobile);
}

.anova-hero__grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-7);
}

.anova-hero__content,
.anova-hero__visual {
  width: 100%;
}

.anova-hero__title {
  font-size: clamp(24px, 6vw, 32px);
  margin-bottom: var(--space-5);
}

.anova-hero__desc {
  font-size: clamp(14px, 4vw, 16px);
  line-height: 1.8;
  margin-bottom: var(--space-6);
  color: var(--anova-text-muted);
}

.anova-hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.anova-hero__actions .anova-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.anova-phone-frame {
  position: relative;
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
}

.anova-phone-frame img {
  width: 100%;
  height: auto;
  border-radius: 24px;
  box-shadow: 0 20px 60px rgba(15, 118, 110, 0.25);
}

.anova-floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--anova-bg);
  border-radius: var(--anova-radius-lg);
  padding: var(--space-3) var(--space-4);
  box-shadow: var(--anova-shadow-medium);
  font-weight: 600;
  z-index: 10;
  font-size: clamp(12px, 3vw, 14px);
}

.anova-floating-card--rating {
  top: 16px;
  inset-inline-end: 12px;
}

.anova-floating-card--users {
  bottom: 24px;
  inset-inline-start: 12px;
}

.anova-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: clamp(12px, 3vw, 13px);
  color: var(--anova-text-muted);
}

.anova-hero__meta li {
  display: flex;
  align-items: center;
  gap: 4px;
}

.anova-hero__meta svg {
  width: 16px;
  height: 16px;
}

/* Header - Mobile First */
.anova-header {
  padding: var(--space-4) var(--anova-padding-mobile);
}

.anova-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.anova-header__brand {
  flex: 0 0 auto;
  max-width: 120px;
}

.anova-header__nav {
  display: none;
}

.anova-mobile-toggle {
  display: inline-flex;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.anova-hamburger {
  display: inline-block;
  width: 24px;
  height: 20px;
  background: linear-gradient(
    to bottom,
    var(--anova-text) 0%,
    var(--anova-text) 15%,
    transparent 15%,
    transparent 40%,
    var(--anova-text) 40%,
    var(--anova-text) 55%,
    transparent 55%,
    transparent 80%,
    var(--anova-text) 80%,
    var(--anova-text) 95%
  );
  position: relative;
  transition: background 200ms ease;
}

.anova-hamburger::before,
.anova-hamburger::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 3px;
  background: var(--anova-text);
  transition: all 200ms ease;
}

.anova-hamburger::before {
  top: -8px;
}

.anova-hamburger::after {
  bottom: -8px;
}

.anova-mobile-menu {
  position: fixed;
  top: 60px;
  inset-inline-start: 0;
  inset-inline-end: 0;
  max-height: calc(100vh - 60px);
  background: var(--anova-bg);
  border-bottom: 1px solid var(--anova-border);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  z-index: 99;
}

.anova-mobile-nav-list {
  list-style: none;
  padding: var(--space-4);
  margin: 0;
}

.anova-mobile-nav-list li {
  padding: 0;
}

.anova-mobile-nav-list a {
  display: block;
  padding: var(--space-3) 0;
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid var(--anova-border);
  transition: color 200ms ease;
}

.anova-mobile-nav-list a:hover {
  color: var(--anova-primary);
}

/* Product Archive - Mobile First */
.anova-app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-5);
}

.anova-app-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  text-align: center;
}

.anova-app-card__image {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--anova-radius-lg);
  overflow: hidden;
  background: var(--anova-bg-soft);
}

.anova-app-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.anova-app-card__title {
  font-size: clamp(13px, 3vw, 16px);
  font-weight: 600;
  margin: 0;
  line-height: 1.4;
}

/* Blog/Content Grid - Mobile First */
.anova-blog-grid,
.anova-content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.anova-blog-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  background: var(--anova-surface);
  border-radius: var(--anova-radius-lg);
  overflow: hidden;
  box-shadow: var(--anova-shadow-soft);
  transition: box-shadow 200ms ease;
}

.anova-blog-card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--anova-bg-soft);
}

.anova-blog-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.anova-blog-card__content {
  padding: var(--space-4);
}

.anova-blog-card__title {
  font-size: clamp(16px, 4vw, 20px);
  margin: 0 0 var(--space-2);
}

.anova-blog-card__excerpt {
  font-size: clamp(13px, 3vw, 15px);
  color: var(--anova-text-muted);
  margin: 0;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Feature Cards - Mobile First */
.anova-feature-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

.anova-feature-card {
  padding: var(--space-5);
  border-radius: var(--anova-radius-lg);
  background: var(--anova-bg-soft);
  text-align: center;
}

.anova-feature-card__icon {
  font-size: clamp(32px, 8vw, 48px);
  margin-bottom: var(--space-4);
}

.anova-feature-card__title {
  font-size: clamp(16px, 4vw, 20px);
  margin: 0 0 var(--space-3);
}

.anova-feature-card__desc {
  font-size: clamp(13px, 3vw, 15px);
  color: var(--anova-text-muted);
  margin: 0;
  line-height: 1.6;
}

/* Buttons - Mobile First */
.anova-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--anova-radius-md);
  font-size: clamp(13px, 3vw, 16px);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 200ms ease;
  white-space: nowrap;
  min-height: 44px;
}

.anova-btn--lg {
  padding: var(--space-4) var(--space-6);
  min-height: 48px;
}

.anova-btn--primary {
  background: var(--anova-primary);
  color: white;
}

.anova-btn--primary:hover {
  background: var(--anova-primary-dark);
  box-shadow: var(--anova-shadow-brand);
}

.anova-btn--outline {
  background: transparent;
  border: 2px solid var(--anova-primary);
  color: var(--anova-primary);
}

.anova-btn--outline:hover {
  background: var(--anova-primary-light);
}

/* CTA Section - Mobile First */
.anova-cta {
  padding: var(--anova-section-gap-mobile) var(--anova-padding-mobile);
  text-align: center;
  background: var(--anova-gradient-brand);
  border-radius: var(--anova-radius-lg);
  color: white;
}

.anova-cta__title {
  color: white;
  margin-bottom: var(--space-4);
  font-size: clamp(20px, 5vw, 32px);
}

.anova-cta__desc {
  margin-bottom: var(--space-6);
  font-size: clamp(14px, 3vw, 16px);
  line-height: 1.6;
}

/* FAQ Section - Mobile First */
.anova-faq-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.anova-faq-card {
  background: var(--anova-bg-soft);
  border-radius: var(--anova-radius-md);
  padding: var(--space-4);
  cursor: pointer;
  transition: all 200ms ease;
}

.anova-faq-card__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin: 0;
  font-size: clamp(14px, 3vw, 16px);
  font-weight: 600;
}

.anova-faq-card__answer {
  margin-top: var(--space-3);
  font-size: clamp(13px, 3vw, 15px);
  color: var(--anova-text-muted);
  line-height: 1.6;
  display: none;
}

.anova-faq-card.active .anova-faq-card__answer {
  display: block;
}

/* Pagination - Mobile First */
.anova-pagination {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  align-items: center;
  padding: var(--space-6);
}

.anova-pagination__item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--anova-radius-md);
  font-size: 14px;
  text-decoration: none;
  color: var(--anova-text);
  border: 1px solid var(--anova-border);
  transition: all 200ms ease;
}

.anova-pagination__item:hover {
  background: var(--anova-primary);
  color: white;
  border-color: var(--anova-primary);
}

.anova-pagination__item.active {
  background: var(--anova-primary);
  color: white;
  border-color: var(--anova-primary);
}

/* ==========================================================================
   Tablet & Small Devices: 640px and up (sm-md breakpoints)
   ========================================================================== */

@media (min-width: 640px) {
  .anova-hero__grid {
    gap: var(--space-8);
  }

  .anova-hero__actions {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .anova-hero__actions .anova-btn {
    width: auto;
    flex: 0 1 auto;
  }

  .anova-phone-frame {
    max-width: 360px;
  }

  .anova-app-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .anova-feature-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .anova-blog-grid,
  .anova-content-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ==========================================================================
   Tablet: 768px and up (lg breakpoint)
   ========================================================================== */

@media (min-width: 768px) {
  :root {
    --anova-container-padding: var(--anova-padding-tablet);
    --anova-section-gap: var(--space-8);
  }

  .anova-hero__grid {
    flex-direction: row;
    align-items: center;
    gap: var(--space-8);
  }

  .anova-hero__content {
    flex: 1;
    min-width: 0;
  }

  .anova-hero__visual {
    flex: 0 0 360px;
  }

  .anova-hero__title {
    font-size: clamp(28px, 4vw, 40px);
  }

  .anova-header {
    padding: var(--space-5) var(--anova-padding-tablet);
  }

  .anova-header__nav {
    display: flex;
    flex: 1;
    justify-content: flex-end;
  }

  .anova-mobile-toggle {
    display: none;
  }

  .anova-mobile-menu {
    display: none;
  }

  .anova-app-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .anova-feature-cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .anova-blog-grid,
  .anova-content-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .anova-blog-card {
    flex-direction: column;
  }

  .anova-cta {
    padding: var(--anova-section-gap) var(--anova-padding-tablet);
  }
}

/* ==========================================================================
   Desktop: 1024px and up (xl breakpoint)
   ========================================================================== */

@media (min-width: 1024px) {
  :root {
    --anova-container-padding: var(--anova-padding-desktop);
    --anova-section-gap: var(--space-9);
  }

  .anova-hero {
    padding: var(--anova-section-gap) var(--anova-padding-desktop);
  }

  .anova-hero__title {
    font-size: clamp(32px, 4vw, 58px);
  }

  .anova-phone-frame {
    max-width: 420px;
  }

  .anova-header {
    padding: var(--space-5) var(--anova-padding-desktop);
  }

  .anova-app-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .anova-feature-cards {
    grid-template-columns: repeat(4, 1fr);
  }

  .anova-blog-grid,
  .anova-content-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .anova-cta {
    padding: var(--anova-section-gap) var(--anova-padding-desktop);
  }

  /* Floating cards positioning on desktop */
  .anova-floating-card--rating {
    top: 24px;
    inset-inline-end: 16px;
  }

  .anova-floating-card--users {
    bottom: 32px;
    inset-inline-start: 16px;
  }
}

/* ==========================================================================
   Large Desktop: 1280px and up (2xl breakpoint)
   ========================================================================== */

@media (min-width: 1280px) {
  .anova-app-grid {
    grid-template-columns: repeat(5, 1fr);
  }

  .anova-feature-cards {
    grid-template-columns: repeat(5, 1fr);
  }

  .anova-blog-grid,
  .anova-content-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .anova-blog-card {
    flex-direction: row;
    aspect-ratio: auto;
  }

  .anova-blog-card__image {
    flex: 0 0 40%;
    aspect-ratio: auto;
  }

  .anova-blog-card__content {
    flex: 1;
  }
}

/* ==========================================================================
   App Showcase & Feature Cards - Mobile Responsive
   ========================================================================== */

.anova-app-showcase__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(var(--space-6), 5vw, var(--space-8));
}

@media (min-width: 1024px) {
  .anova-app-showcase__layout {
    grid-template-columns: 0.8fr 1.2fr;
  }
}

.anova-app-showcase__spotlight {
  padding: clamp(var(--space-5), 5vw, var(--space-7)) clamp(var(--space-4), 4vw, var(--space-5));
}

.anova-app-showcase__row-index {
  width: clamp(40px, 10vw, 44px);
  height: clamp(40px, 10vw, 44px);
}

.anova-feature-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(var(--space-4), 3vw, var(--space-6));
}

@media (min-width: 640px) {
  .anova-feature-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .anova-feature-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ==========================================================================
   Extra Large Desktop: 1536px and up (3xl breakpoint)
   ========================================================================== */

@media (min-width: 1536px) {
  .anova-blog-grid,
  .anova-content-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
  .anova-header,
  .anova-footer,
  .anova-back-to-top,
  .anova-mobile-toggle {
    display: none;
  }

  .anova-section {
    page-break-inside: avoid;
  }
}

/* ==========================================================================
   Accessibility - High Contrast Mode
   ========================================================================== */

@media (prefers-contrast: more) {
  .anova-btn,
  .anova-link {
    text-decoration: underline;
  }

  .anova-btn {
    border-width: 2px;
  }
}

/* ==========================================================================
   Accessibility - Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   Dark Mode Responsive Adjustments
   ========================================================================== */

@media (prefers-color-scheme: dark) {
  :root[data-anova-theme="auto"] {
    --anova-bg: #0E1117;
    --anova-bg-soft: #151A23;
    --anova-surface: #1A202C;
    --anova-border: #2A2F3A;
    --anova-text: #F3F5F8;
    --anova-text-muted: #A3ACBA;
  }
}