/* =========================================================
   YALLA HEALTH SHARED STYLING SYSTEM
   ========================================================= */

:root {
  --color-bg-start: #0f2a4d;
  --color-bg-mid: #173b70;
  --color-bg-end: #0d264a;
  --color-accent: #4dc8ff;
  --color-accent-hover: #80d8ff;
  --color-accent-light: #a8d4ff;
  --color-text-main: #ffffff;
  --color-text-muted: #d8e7ff;
  --color-text-dark: #0f2a4d;
  --color-card-bg: rgba(10, 27, 50, 0.82);
  --color-card-border: rgba(255, 255, 255, 0.12);
  --color-glass-nav: rgba(15, 42, 77, 0.7);
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  color-scheme: dark;
}

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

html, body {
  min-height: 100%;
  font-family: var(--font-sans);
  background: radial-gradient(circle at top left, rgba(42, 146, 255, 0.22), transparent 32%),
              linear-gradient(135deg, var(--color-bg-start) 0%, var(--color-bg-mid) 48%, var(--color-bg-end) 100%);
  color: var(--color-text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* =========================================================
   HEADER & NAVIGATION
   ========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-glass-nav);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition-smooth);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-accent-light);
  transition: var(--transition-smooth);
}

.brand:hover {
  opacity: 0.9;
}

.brand-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 20px rgba(77, 200, 255, 0.48);
}

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

.nav-link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition-smooth);
  position: relative;
  padding: 8px 0;
}

.nav-link:hover {
  color: var(--color-text-main);
}

.nav-link.active {
  color: var(--color-accent);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

/* Hamburger Menu Icon */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 24px;
  position: relative;
  z-index: 1100;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-main);
  position: absolute;
  transition: var(--transition-smooth);
  border-radius: 2px;
}

.menu-toggle span:nth-child(1) { top: 0; }
.menu-toggle span:nth-child(2) { top: 11px; }
.menu-toggle span:nth-child(3) { top: 22px; }

.menu-toggle.open span:nth-child(1) {
  transform: translateY(11px) rotate(45deg);
}
.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.open span:nth-child(3) {
  transform: translateY(-11px) rotate(-45deg);
}

/* Mobile Sidebar */
.mobile-sidebar {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: var(--color-bg-end);
  z-index: 1050;
  padding: 100px 32px 32px;
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.mobile-sidebar.open {
  right: 0;
}

.mobile-sidebar .nav-link {
  font-size: 1.15rem;
  padding: 12px 0;
}

.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1040;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.mobile-overlay.visible {
  opacity: 1;
  visibility: visible;
}

/* =========================================================
   FOOTER
   ========================================================= */

.site-footer {
  background: rgba(10, 27, 50, 0.95);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 64px 0 32px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-logo-col .brand {
  margin-bottom: 16px;
}

.footer-logo-col p {
  color: var(--color-text-muted);
  max-width: 320px;
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer-title {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 24px;
  color: var(--color-accent-light);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: var(--transition-smooth);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.footer-contact-item i {
  color: var(--color-accent);
  font-size: 1.1rem;
}

.footer-contact-item a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.footer-contact-item a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  color: #7d96b8;
  font-size: 0.88rem;
}

/* =========================================================
   COMMON LAYOUT / PANELS
   ========================================================= */

.section-gap {
  padding: 80px 0;
}

.panel {
  width: 100%;
  padding: 48px;
  border: 1px solid var(--color-card-border);
  border-radius: 32px;
  background: var(--color-card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.22);
}

.headline {
  display: inline-block;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #d4e8ff;
  font-size: 0.92rem;
  margin-bottom: 24px;
}

h1 {
  font-size: clamp(2.4rem, 4.5vw, 4rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-subtitle {
  color: var(--color-accent);
  font-weight: 700;
}

/* =========================================================
   HOME PAGE Hero & Grids
   ========================================================= */

.hero-area {
  padding: 100px 0 60px;
}

.hero-desc {
  max-width: 800px;
  font-size: 1.15rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 40px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 36px;
}

.info-card {
  padding: 32px 24px;
  border-radius: 24px;
  background: rgba(21, 50, 84, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition-smooth);
}

.info-card:hover {
  transform: translateY(-5px);
  border-color: rgba(77, 200, 255, 0.3);
}

.info-card strong {
  display: block;
  font-size: 1.4rem;
  color: #ffffff;
  margin-bottom: 12px;
}

.info-card span {
  display: block;
  color: var(--color-text-muted);
  font-size: 0.98rem;
  line-height: 1.6;
}

/* Join Cards */
.join-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 48px;
}

.join-card {
  padding: 40px;
  border-radius: 28px;
  background: rgba(15, 42, 77, 0.5);
  border: 1px solid var(--color-card-border);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.join-card:hover {
  border-color: rgba(77, 200, 255, 0.4);
}

.join-card h3 {
  font-size: 1.8rem;
  margin-bottom: 24px;
  color: var(--color-accent-light);
}

.join-card.provider h3 {
  color: var(--color-accent);
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--color-text-muted);
}

.feature-list li i {
  color: var(--color-accent);
  font-size: 1.15rem;
  margin-top: 4px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: #ffffff;
  color: var(--color-text-dark);
}

.btn-primary:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-text-dark);
}

.btn-accent:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(77, 200, 255, 0.2);
}

/* App Features */
.app-features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}

.app-feature-item {
  padding: 24px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  gap: 16px;
}

.app-feature-item i {
  font-size: 2rem;
  color: var(--color-accent);
}

.app-feature-item p {
  font-size: 1.05rem;
  font-weight: 500;
}

/* =========================================================
   ABOUT US PAGE
   ========================================================= */

.about-hero {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 64px;
}

.about-hero p {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-top: 24px;
}

.mission-section {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 28px;
  padding: 40px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  margin-bottom: 56px;
  text-align: center;
}

.mission-section h2 {
  color: var(--color-accent);
  margin-bottom: 16px;
}

.mission-section p {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 900px;
  margin: 0 auto;
  line-height: 1.7;
}

.about-what-we-do h3 {
  font-size: 1.8rem;
  margin-bottom: 32px;
  text-align: center;
}

.what-we-do-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.what-card {
  padding: 28px;
  border-radius: 20px;
  background: rgba(15, 42, 77, 0.4);
  border: 1px solid var(--color-card-border);
  display: flex;
  gap: 18px;
}

.what-card i {
  color: var(--color-accent);
  font-size: 1.25rem;
  background: rgba(77, 200, 255, 0.1);
  padding: 12px;
  border-radius: 50%;
  height: 48px;
  width: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.what-card h4 {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: #ffffff;
}

.what-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* =========================================================
   TERMS & PRIVACY POLICY PAGES
   ========================================================= */

.policy-hero {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 48px;
}

.policy-hero h1 span {
  color: var(--color-accent);
}

.policy-updated {
  color: var(--color-accent-light);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.policy-intro {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.policy-section {
  margin-bottom: 40px;
}

.policy-section-header {
  padding: 12px 24px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border-left: 4px solid var(--color-accent);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: #ffffff;
}

.policy-content {
  padding: 0 12px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.policy-content p {
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.7;
}

.policy-subpoint {
  margin-top: 16px;
  padding-left: 16px;
  border-left: 2px solid rgba(255, 255, 255, 0.1);
}

.policy-subpoint h5 {
  font-size: 1rem;
  margin-bottom: 8px;
  color: var(--color-accent-light);
}

/* =========================================================
   CONTACT US PAGE
   ========================================================= */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.contact-info-col h2 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.contact-info-col p {
  color: var(--color-text-muted);
  margin-bottom: 36px;
}

.contact-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-info-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  transition: var(--transition-smooth);
}

.contact-info-card:hover {
  background: rgba(255, 255, 255, 0.08);
}

.contact-icon-wrapper {
  background: rgba(77, 200, 255, 0.1);
  color: var(--color-accent);
  font-size: 1.5rem;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-card-detail h4 {
  font-size: 1.05rem;
  margin-bottom: 4px;
  color: #ffffff;
}

.contact-card-detail p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* Contact Form */
.contact-form-col {
  position: relative;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent-light);
}

.form-control {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 14px 18px;
  color: #ffffff;
  font-family: var(--font-sans);
  font-size: 0.98rem;
  transition: var(--transition-smooth);
  width: 100%;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 10px rgba(77, 200, 255, 0.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 140px;
}

/* Success Overlay */
.success-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg-end);
  border-radius: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px;
  border: 1px solid var(--color-accent);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
  z-index: 10;
}

.success-overlay.show {
  opacity: 1;
  visibility: visible;
}

.success-overlay i {
  font-size: 4rem;
  color: var(--color-accent);
  margin-bottom: 24px;
}

.success-overlay h3 {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.success-overlay p {
  color: var(--color-text-muted);
  max-width: 320px;
}

/* =========================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================= */

@media (max-width: 992px) {
  .nav-menu {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }
}

@media (max-width: 768px) {
  .section-gap {
    padding: 60px 0;
  }

  .panel {
    padding: 32px 24px;
  }

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

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

  .what-we-do-grid {
    grid-template-columns: 1fr;
  }

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