/* ============================================================
   appdown.css - App download page (appdown.html)
   Uses CSS variables from public.css
   ============================================================ */

/* ============================
   DOWNLOAD HERO - Main banner
   ============================ */
.download-hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, var(--purple) 100%);
  padding: 60px 40px;
  border-radius: 20px;
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.download-hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -100px;
  width: 350px;
  height: 350px;
  border-radius: 50%;
  background: rgba(253, 185, 51, 0.08);
}

.download-hero::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -60px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
}

/* ============================
   HERO CONTENT - Text & buttons
   ============================ */
.download-hero-content {
  position: relative;
  z-index: 1;
  flex: 1;
}

.download-hero-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.3;
  margin: 0 0 12px;
  color: var(--white);
}

.download-hero-title span {
  color: var(--gold);
}

.download-hero-desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
  margin: 0 0 24px;
}

.download-hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 28px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all 0.3s;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.download-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
  transition: left 0.5s;
}

.download-btn:hover::before {
  left: 100%;
}

.download-btn i,
.download-btn .btn-icon {
  font-size: 20px;
}

.download-btn:hover {
  transform: translateY(-2px);
}

.download-btn:active {
  transform: translateY(0);
}

.download-btn-ios {
  background: var(--white);
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.download-btn-ios:hover {
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
  background: var(--white);
}

.download-btn-android {
  background: linear-gradient(135deg, var(--green), #1e8449);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(39, 174, 96, 0.3);
}

.download-btn-android:hover {
  box-shadow: 0 6px 24px rgba(39, 174, 96, 0.4);
}

/* ============================
   PHONE MOCKUP
   ============================ */
.download-phone-mockup {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.download-phone-mockup .phone-frame {
  width: 260px;
  height: 520px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 36px;
  border: 3px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  backdrop-filter: blur(8px);
}

.download-phone-mockup .phone-screen {
  width: 230px;
  height: 490px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.download-phone-mockup .phone-screen img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.download-phone-mockup .phone-notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 6px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 3px;
}

/* QR Code in hero */
.download-hero .hero-qr {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.hero-qr-box {
  background: var(--white);
  border-radius: 16px;
  padding: 16px;
  text-align: center;
}

.hero-qr-box img {
  width: 180px;
  height: 180px;
  display: block;
  margin: 0 auto;
}

.hero-qr-label {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  margin-top: 8px;
}

/* ============================
   DOWNLOAD FEATURES
   ============================ */
.download-features {
  background: var(--white);
  border-radius: 16px;
  padding: 40px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 32px;
}

.download-features .features-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  text-align: center;
  margin: 0 0 32px;
}

.feature-item {
  text-align: center;
  padding: 20px;
  border-radius: var(--radius-lg);
  transition: all 0.3s;
}

.feature-item:hover {
  background: var(--bg-light);
  transform: translateY(-4px);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  font-size: 26px;
  color: var(--white);
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
}

.feature-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.feature-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Features grid layout */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

/* ============================
   DOWNLOAD CARDS
   ============================ */
.download-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.download-card {
  background: var(--white);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.download-card-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin: 0 auto 16px;
  color: var(--white);
}

.download-card-icon.android {
  background: linear-gradient(135deg, #3ddc84, #2fa866);
}

.download-card-icon.ios {
  background: linear-gradient(135deg, #007aff, #005ecb);
}

.download-card-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}

.download-card-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.5;
}

/* Card download buttons */
.dl-btn {
  display: inline-block;
  padding: 12px 40px;
  border-radius: 24px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all 0.3s;
  text-decoration: none;
}

.dl-btn.android-btn {
  background: linear-gradient(135deg, #3ddc84, #2fa866);
  color: var(--white);
}

.dl-btn.android-btn:hover {
  box-shadow: 0 4px 16px rgba(61, 220, 132, 0.4);
  transform: translateY(-2px);
}

.dl-btn.ios-btn {
  background: linear-gradient(135deg, #007aff, #005ecb);
  color: var(--white);
}

.dl-btn.ios-btn:hover {
  box-shadow: 0 4px 16px rgba(0, 122, 255, 0.4);
  transform: translateY(-2px);
}

/* ============================
   PAGE HEADER / NAV (shared)
   ============================ */
.page-header {
  width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.page-header .logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-header .logo-wrap img {
  height: 44px;
}

.page-header .logo-text {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
}

.page-header .logo-text span {
  color: var(--orange);
}

.page-header .header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.page-header .header-right a {
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  transition: color 0.2s;
  text-decoration: none;
}

.page-header .header-right a:hover {
  color: var(--orange);
}

.page-nav {
  width: 100%;
  background: var(--primary);
  display: flex;
  justify-content: center;
}

.page-nav-inner {
  width: 1400px;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 50px;
}

.page-nav-inner a {
  width: 140px;
  display: flex;
  font-size: 16px;
  justify-content: center;
  line-height: 50px;
  text-align: center;
  color: var(--white);
  cursor: pointer;
  transition: background 0.3s;
  text-decoration: none;
}

.page-nav-inner a:hover {
  background: rgba(253, 185, 51, 0.2);
}

.page-nav-inner a.active {
  background: rgba(253, 185, 51, 0.3);
}

.page-main {
  width: 1400px;
  margin: 20px auto;
}

/* ============================
   RESPONSIVE STYLES
   ============================ */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .page-header,
  .page-nav-inner,
  .page-main {
    width: 100%;
    padding: 0 16px;
  }

  .download-hero {
    flex-direction: column;
    text-align: center;
    padding: 40px 24px;
  }

  .download-hero-title {
    font-size: 26px;
  }

  .download-hero-desc {
    font-size: 14px;
  }

  .download-hero-btns {
    justify-content: center;
  }

  .download-phone-mockup .phone-frame {
    width: 200px;
    height: 400px;
  }

  .download-phone-mockup .phone-screen {
    width: 174px;
    height: 372px;
  }

  .download-cards {
    grid-template-columns: 1fr;
  }

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

  .download-features {
    padding: 24px;
  }

  .page-nav-inner a {
    width: auto;
    padding: 0 14px;
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .download-hero {
    padding: 28px 16px;
    border-radius: var(--radius-lg);
  }

  .download-hero-title {
    font-size: 22px;
  }

  .download-hero-btns {
    flex-direction: column;
    width: 100%;
  }

  .download-btn {
    width: 100%;
    justify-content: center;
  }

  .download-phone-mockup {
    display: none;
  }

  .download-cards {
    gap: 16px;
  }

  .download-card {
    padding: 24px 16px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .download-features {
    padding: 20px;
  }

  .page-header .logo-text {
    font-size: 20px;
  }

  .page-nav-inner a {
    font-size: 12px;
    padding: 0 8px;
  }
}