*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #0D7377;
  --primary-dark: #0A5C5F;
  --secondary: #14A3A8;
  --accent: #17C3CE;
  --bg: #F5F7FA;
  --bg-white: #FFFFFF;
  --text: #1A2332;
  --text-secondary: #4A5568;
  --text-light: #718096;
  --border: #E2E8F0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 14px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 60px rgba(13,115,119,0.15);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ===== NAV ===== */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}

nav.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--primary);
  font-weight: 700;
  font-size: 1.125rem;
}

.nav-logo img {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 7px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--primary);
}

.nav-cta {
  background: var(--primary);
  color: #fff !important;
  padding: 8px 20px;
  border-radius: 8px;
  font-weight: 600;
  transition: background var(--transition), transform var(--transition);
}

.nav-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 6px 0;
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== SECTIONS ===== */
section {
  padding: 100px 24px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--secondary);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--text);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.7;
}

.section-subtitle.center {
  margin: 0 auto;
}

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

/* ===== HERO ===== */
.hero {
  padding: 140px 24px 100px;
  background: linear-gradient(170deg, #F5F7FA 0%, #E8F4F5 40%, #F5F7FA 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(13,115,119,0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(23,195,206,0.05) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero .container {
  display: flex;
  align-items: center;
  gap: 60px;
  position: relative;
  z-index: 1;
}

.hero-content {
  flex: 1;
  min-width: 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(13,115,119,0.08);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero h1 .gradient {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(13,115,119,0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(13,115,119,0.4);
}

.btn-secondary {
  background: var(--bg-white);
  color: var(--text);
  border: 1.5px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--secondary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.hero-visual {
  flex: 0 0 380px;
  position: relative;
}

.hero-phone {
  width: 280px;
  height: 560px;
  margin: 0 auto;
  background: linear-gradient(145deg, #1a1a2e, #16213e);
  border-radius: 40px;
  padding: 12px;
  box-shadow: var(--shadow-xl), 0 0 0 1px rgba(255,255,255,0.1) inset;
  position: relative;
}

.hero-phone-screen {
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, var(--primary) 0%, var(--secondary) 40%, #F5F7FA 40%);
  border-radius: 30px;
  overflow: hidden;
  position: relative;
}

.phone-header {
  padding: 50px 20px 24px;
  color: #fff;
  text-align: center;
}

.phone-header h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.phone-header p {
  font-size: 0.75rem;
  opacity: 0.85;
  color: #fff;
  margin-bottom: 0;
}

.phone-cards {
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.phone-card {
  background: #fff;
  border-radius: 12px;
  padding: 14px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  display: flex;
  align-items: center;
  gap: 12px;
}

.phone-card-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.phone-card-icon.teal { background: rgba(13,115,119,0.1); }
.phone-card-icon.orange { background: rgba(245,158,11,0.1); }
.phone-card-icon.blue { background: rgba(59,130,246,0.1); }
.phone-card-icon.green { background: rgba(16,185,129,0.1); }

.phone-card-text {
  flex: 1;
  min-width: 0;
}

.phone-card-text strong {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text);
}

.phone-card-text span {
  font-size: 0.65rem;
  color: var(--text-light);
}

.phone-card-amount {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.hero-trust-item svg {
  color: var(--secondary);
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ===== FEATURES ===== */
.features {
  background: var(--bg-white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 60px;
}

.feature-card {
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: all var(--transition);
  background: var(--bg-white);
}

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

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.feature-icon.bg-teal { background: rgba(13,115,119,0.08); color: var(--primary); }
.feature-icon.bg-blue { background: rgba(59,130,246,0.08); color: #3B82F6; }
.feature-icon.bg-purple { background: rgba(139,92,246,0.08); color: #8B5CF6; }
.feature-icon.bg-orange { background: rgba(245,158,11,0.08); color: #F59E0B; }
.feature-icon.bg-green { background: rgba(16,185,129,0.08); color: #10B981; }
.feature-icon.bg-rose { background: rgba(244,63,94,0.08); color: #F43F5E; }
.feature-icon.bg-cyan { background: rgba(6,182,212,0.08); color: #06B6D4; }

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ===== WHY ===== */
.why {
  background: linear-gradient(170deg, #0D7377 0%, #0A5C5F 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.why::before {
  content: '';
  position: absolute;
  top: -150px;
  right: -150px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(23,195,206,0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.why .section-label {
  color: var(--accent);
}

.why .section-title {
  color: #fff;
}

.why .section-subtitle {
  color: rgba(255,255,255,0.8);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 60px;
  position: relative;
  z-index: 1;
}

.why-card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition);
}

.why-card:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-2px);
}

.why-card-number {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}

.why-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.why-card p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.78);
  line-height: 1.65;
}

/* ===== HOW IT WORKS ===== */
.how {
  background: var(--bg-white);
}

.how-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 60px;
  position: relative;
}

.how-steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--primary), var(--secondary), var(--accent));
  opacity: 0.3;
}

.how-step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 1.25rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 4px 14px rgba(13,115,119,0.25);
}

.how-step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.how-step p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== PRIVACY ===== */
.privacy {
  background: var(--bg);
}

.privacy-content {
  display: flex;
  align-items: center;
  gap: 60px;
  margin-top: 60px;
}

.privacy-visual {
  flex: 0 0 320px;
  text-align: center;
}

.privacy-shield {
  width: 200px;
  height: 200px;
  margin: 0 auto;
  background: linear-gradient(145deg, rgba(13,115,119,0.08), rgba(23,195,206,0.04));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.privacy-shield::before {
  content: '';
  position: absolute;
  inset: -16px;
  border-radius: 50%;
  border: 2px dashed rgba(13,115,119,0.15);
}

.privacy-shield svg {
  width: 80px;
  height: 80px;
  color: var(--primary);
}

.privacy-text {
  flex: 1;
}

.privacy-list {
  list-style: none;
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.privacy-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.privacy-list li svg {
  width: 22px;
  height: 22px;
  color: var(--secondary);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ===== DONATION ===== */
.donation {
  background: var(--bg-white);
}

.donation-box {
  max-width: 720px;
  margin: 48px auto 0;
  background: linear-gradient(145deg, rgba(13,115,119,0.04), rgba(23,195,206,0.02));
  border: 1.5px solid rgba(13,115,119,0.12);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  text-align: center;
}

.donation-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.donation-box h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.donation-box p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 540px;
  margin: 0 auto 28px;
}

.donation-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

.btn-donate {
  background: #0070BA;
  color: #fff;
}

.btn-donate:hover {
  background: #005EA6;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(0,112,186,0.3);
}

.btn-coffee {
  background: #FFDD00;
  color: #000;
}

.btn-coffee:hover {
  background: #E5C700;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(255,221,0,0.3);
}

/* ===== FAQ ===== */
.faq {
  background: var(--bg);
}

.faq-list {
  max-width: 820px;
  margin: 56px auto 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.faq-item[open] {
  border-color: rgba(13,115,119,0.25);
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  transition: color var(--transition);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  color: var(--primary);
}

.faq-item summary .faq-chevron {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--text-light);
  transition: transform var(--transition), color var(--transition);
}

.faq-item[open] summary .faq-chevron {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-item-body {
  padding: 0 24px 22px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item-body p + p {
  margin-top: 12px;
}

.faq-item-body a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.faq-item-body a:hover {
  color: var(--primary-dark);
}

.faq-still-need-help {
  max-width: 820px;
  margin: 40px auto 0;
  background: linear-gradient(145deg, rgba(13,115,119,0.06), rgba(23,195,206,0.04));
  border: 1.5px solid rgba(13,115,119,0.12);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.faq-still-need-help-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(13,115,119,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.faq-still-need-help-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.faq-still-need-help-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.faq-still-need-help-content a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(13,115,119,0.3);
  transition: border-color var(--transition);
}

.faq-still-need-help-content a:hover {
  border-bottom-color: var(--primary);
}

@media (max-width: 640px) {
  .faq-item summary {
    padding: 18px 18px;
    font-size: 0.95rem;
  }
  .faq-item-body {
    padding: 0 18px 18px;
    font-size: 0.9rem;
  }
  .faq-still-need-help {
    flex-direction: column;
    padding: 24px 22px;
  }
}

/* ===== CTA BANNER ===== */
.cta-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: #fff;
  text-align: center;
  padding: 80px 24px;
}

.cta-banner h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 800;
  margin-bottom: 12px;
}

.cta-banner p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.btn-white {
  background: #fff;
  color: var(--primary);
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

/* ===== FOOTER ===== */
footer {
  background: var(--text);
  color: rgba(255,255,255,0.6);
  padding: 48px 24px 32px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
}

.footer-brand svg {
  width: 28px;
  height: 28px;
}

.footer-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.footer-links a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  max-width: 1200px;
  margin: 28px auto 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8rem;
}

.footer-tracking {
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-tracking svg {
  width: 14px;
  height: 14px;
  color: var(--accent);
}

/* ===== ANIMATIONS ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.35s; }
.reveal-delay-5 { transition-delay: 0.4s; }
.reveal-delay-6 { transition-delay: 0.45s; }

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

  .how-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 32px;
  }

  .how-steps::before {
    display: none;
  }

  .hero-visual {
    flex: 0 0 300px;
  }
}

@media (max-width: 768px) {
  section {
    padding: 72px 20px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }

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

  .nav-toggle {
    display: block;
  }

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

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

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

  .hero {
    padding: 120px 20px 72px;
  }

  .hero .container {
    flex-direction: column;
    text-align: center;
    gap: 48px;
  }

  .hero p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-trust {
    justify-content: center;
  }

  .hero-visual {
    flex: 0 0 auto;
  }

  .hero-phone {
    width: 240px;
    height: 480px;
  }

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

  .why-grid {
    grid-template-columns: 1fr;
  }

  .how-steps {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
    gap: 32px;
  }

  .privacy-content {
    flex-direction: column;
    text-align: center;
  }

  .privacy-visual {
    flex: 0 0 auto;
  }

  .privacy-list li {
    text-align: left;
  }

  .donation-box {
    padding: 36px 24px;
  }

  #premium .container > div[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }

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

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }

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

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  .btn {
    padding: 12px 22px;
    font-size: 0.95rem;
    width: 100%;
    justify-content: center;
  }

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

  .donation-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-phone {
    width: 210px;
    height: 420px;
  }

  .phone-header {
    padding: 40px 16px 18px;
  }

  .phone-cards {
    padding: 8px 10px;
    gap: 8px;
  }

  .phone-card {
    padding: 10px;
  }
}

/* ===== DEVICE SHOWCASE (real screenshots in hero) ===== */
.device-showcase {
  position: relative;
  width: 100%;
  max-width: 460px;
  height: 520px;
  margin: 0 auto;
}

.device-frame {
  position: absolute;
  background: linear-gradient(145deg, #1a1a2e, #16213e);
  border-radius: 32px;
  padding: 8px;
  box-shadow: var(--shadow-xl), 0 0 0 1px rgba(255,255,255,0.08) inset;
  overflow: hidden;
}

.device-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 24px;
}

.device-ipad {
  top: 30px;
  right: 0;
  width: 320px;
  height: 430px;
  transform: rotate(4deg);
  z-index: 1;
}

.device-iphone {
  bottom: 0;
  left: 0;
  width: 200px;
  height: 420px;
  border-radius: 36px;
  padding: 6px;
  transform: rotate(-5deg);
  z-index: 2;
}

.device-iphone img {
  border-radius: 30px;
}

@media (max-width: 1024px) {
  .device-showcase {
    max-width: 380px;
    height: 460px;
  }
  .device-ipad {
    width: 270px;
    height: 360px;
  }
  .device-iphone {
    width: 170px;
    height: 360px;
  }
}

@media (max-width: 768px) {
  .device-showcase {
    max-width: 340px;
    height: 420px;
  }
  .device-ipad {
    width: 240px;
    height: 320px;
    top: 20px;
  }
  .device-iphone {
    width: 150px;
    height: 320px;
  }
}

@media (max-width: 480px) {
  .device-showcase {
    max-width: 300px;
    height: 380px;
  }
  .device-ipad {
    width: 210px;
    height: 280px;
    top: 16px;
  }
  .device-iphone {
    width: 130px;
    height: 280px;
  }
}

/* ===== SCREENSHOTS SECTION ===== */
.screenshots {
  background: linear-gradient(180deg, #F5F7FA 0%, #EAF3F4 100%);
  overflow: hidden;
}

.screenshots-tabs {
  display: inline-flex;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 4px;
  margin: 32px auto 0;
  gap: 4px;
  box-shadow: var(--shadow-sm);
}

.screenshots-tab {
  border: none;
  background: transparent;
  padding: 10px 24px;
  border-radius: 100px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.screenshots-tab svg {
  width: 16px;
  height: 16px;
}

.screenshots-tab.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(13,115,119,0.3);
}

.screenshots-pane { display: none; margin-top: 48px; }
.screenshots-pane.active { display: block; }

.screenshots-grid-iphone {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 28px;
  max-width: 1200px;
  margin: 0 auto;
}

.screenshots-grid-ipad {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  max-width: 1200px;
  margin: 0 auto;
}

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

.screenshot-frame-iphone {
  background: linear-gradient(145deg, #1a1a2e, #16213e);
  border-radius: 28px;
  padding: 5px;
  box-shadow: var(--shadow-lg);
  margin: 0 auto 14px;
  max-width: 200px;
  aspect-ratio: 1284 / 2778;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.screenshot-frame-iphone:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.screenshot-frame-iphone img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 24px;
}

.screenshot-frame-ipad {
  background: linear-gradient(145deg, #1a1a2e, #16213e);
  border-radius: 22px;
  padding: 6px;
  box-shadow: var(--shadow-lg);
  margin: 0 auto 14px;
  max-width: 320px;
  aspect-ratio: 2064 / 2752;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.screenshot-frame-ipad:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.screenshot-frame-ipad img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 16px;
}

.screenshot-caption {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.screenshot-sub {
  font-size: 0.8rem;
  color: var(--text-light);
  line-height: 1.4;
  max-width: 220px;
  margin: 0 auto;
}

/* ===== LANGUAGE SWITCHER ===== */
.lang-switcher {
  position: relative;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 6px 12px;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.lang-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.lang-toggle svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition);
}

.lang-switcher.open .lang-toggle svg {
  transform: rotate(180deg);
}

.lang-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  max-height: 360px;
  overflow-y: auto;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  padding: 6px;
  z-index: 1100;
}

.lang-switcher.open .lang-menu { display: block; }

.lang-menu a {
  display: block;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition: background var(--transition);
}

.lang-menu a:hover { background: var(--bg); color: var(--primary); }
.lang-menu a.current { background: rgba(13,115,119,0.08); color: var(--primary); font-weight: 700; }

@media (max-width: 768px) {
  .lang-switcher {
    border-top: 1px solid var(--border);
    margin-top: 8px;
    padding-top: 16px;
    width: 100%;
  }
  .lang-toggle { width: 100%; justify-content: center; }
  .lang-menu { position: static; margin-top: 8px; width: 100%; box-shadow: none; border: 1px solid var(--border); }
}

/* ===== iCloud sync highlight strip (in why section) ===== */
.icloud-strip {
  display: flex;
  align-items: center;
  gap: 24px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  margin-top: 40px;
  position: relative;
  z-index: 1;
}

.icloud-strip svg {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  color: var(--accent);
}

.icloud-strip h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}

.icloud-strip p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.78);
  line-height: 1.6;
}

@media (max-width: 600px) {
  .icloud-strip { flex-direction: column; text-align: center; padding: 24px 20px; }
}

/* ===== FLOW DIAGRAM (main benefit visualization) ===== */
.flow {
  background: linear-gradient(180deg, #FFFFFF 0%, #F0F8F9 100%);
  overflow: hidden;
}

.flow-diagram {
  display: grid;
  /* 4 equal-width node columns interleaved with 3 auto-width connector columns = 7 columns total */
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: stretch;
  gap: 0;
  margin: 56px 0 0;
  position: relative;
}

.flow-diagram .flow-node {
  min-width: 0;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.flow-node {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 22px 26px;
  text-align: center;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.flow-node:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.flow-node-step {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--secondary);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.flow-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, rgba(13,115,119,0.10), rgba(23,195,206,0.08));
  color: var(--primary);
  box-shadow: inset 0 0 0 1px rgba(13,115,119,0.08);
}

.flow-icon svg {
  width: 30px;
  height: 30px;
}

.flow-node:nth-child(3) .flow-icon { color: #8B5CF6; background: linear-gradient(135deg, rgba(139,92,246,0.12), rgba(139,92,246,0.05)); box-shadow: inset 0 0 0 1px rgba(139,92,246,0.10); }
.flow-node:nth-child(5) .flow-icon { color: #F59E0B; background: linear-gradient(135deg, rgba(245,158,11,0.14), rgba(245,158,11,0.05)); box-shadow: inset 0 0 0 1px rgba(245,158,11,0.10); }
.flow-node:nth-child(7) .flow-icon { color: #10B981; background: linear-gradient(135deg, rgba(16,185,129,0.12), rgba(16,185,129,0.05)); box-shadow: inset 0 0 0 1px rgba(16,185,129,0.12); }

.flow-node h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.flow-node p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.flow-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  width: 36px;
  padding: 0 6px;
  align-self: center;
}

.flow-connector svg {
  width: 22px;
  height: 22px;
}

.flow-outcome {
  margin-top: 36px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  display: flex;
  align-items: center;
  gap: 20px;
  justify-content: center;
  text-align: left;
  box-shadow: 0 12px 40px rgba(13,115,119,0.18);
  flex-wrap: wrap;
}

.flow-outcome-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.flow-outcome-icon svg { width: 28px; height: 28px; }

.flow-outcome-text { flex: 1; min-width: 240px; }

.flow-outcome-text strong {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: #fff;
}

.flow-outcome-text span {
  display: block;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.88);
  line-height: 1.55;
}

@media (max-width: 1024px) {
  .flow-diagram {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .flow-connector { display: none; }
}

@media (max-width: 600px) {
  .flow-diagram {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .flow-node { height: auto; }
  .flow-outcome { flex-direction: column; text-align: center; padding: 24px 22px; }
  .flow-outcome-text { min-width: 0; }
}

/* ===== APP STORE BADGE ===== */
.app-store-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 22px 12px 18px;
  background: #000;
  color: #fff !important;
  border-radius: 12px;
  text-decoration: none;
  border: 1px solid #000;
  transition: transform var(--transition), box-shadow var(--transition);
  line-height: 1.1;
  font-family: inherit;
  box-shadow: 0 4px 14px rgba(0,0,0,0.18);
}

.app-store-badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

.app-store-badge svg { width: 28px; height: 28px; flex-shrink: 0; }

.app-store-badge-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.app-store-badge-text small {
  font-size: 0.65rem;
  letter-spacing: 0.02em;
  opacity: 0.85;
  font-weight: 500;
}

.app-store-badge-text strong {
  font-size: 1.05rem;
  font-weight: 700;
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  z-index: 2000;
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  left: 0;
}