/* ========================================
   MedClaw Landing Page — Stylesheet
   ======================================== */

/* --- CSS Variables --- */
:root {
  --color-primary: #00BFA5;
  --color-primary-dark: #00997F;
  --color-primary-light: #B2F0E6;
  --color-hero-bg: #1A2332;
  --color-hero-text: #FFFFFF;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F5F7FA;
  --color-text: #2D3748;
  --color-text-secondary: #6B7280;
  --color-text-light: #9CA3AF;
  --color-border: #E5E7EB;
  --color-disclaimer-bg: #FFF8E1;
  --color-disclaimer-border: #FFD54F;
  --color-disclaimer-text: #795548;
  --color-footer-bg: #111827;
  --color-footer-text: #D1D5DB;
  --font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --max-width: 1200px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
  --transition: 0.3s ease;
}

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

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

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary-dark);
}

ul {
  list-style: none;
}

/* --- Container --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Header / Navigation --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(26, 35, 50, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: background var(--transition);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #FFFFFF;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-links a:hover {
  color: #FFFFFF;
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 4px;
}

.lang-btn {
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 16px;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-family);
}

.lang-btn.active {
  background: var(--color-primary);
  color: #FFFFFF;
}

.lang-btn:hover:not(.active) {
  color: #FFFFFF;
}

/* Mobile menu button */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #FFFFFF;
  border-radius: 2px;
  transition: all var(--transition);
}

.menu-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Hero Section --- */
.hero {
  background: var(--color-hero-bg);
  color: var(--color-hero-text);
  padding: 140px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 191, 165, 0.15), transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 191, 165, 0.08), transparent 70%);
  border-radius: 50%;
}

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

.hero-content {
  flex: 1;
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 191, 165, 0.15);
  border: 1px solid rgba(0, 191, 165, 0.3);
  border-radius: 24px;
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

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

.hero-tagline {
  font-size: 1.35rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 32px;
  line-height: 1.5;
}

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

.app-store-badge {
  display: inline-block;
  transition: transform var(--transition), opacity var(--transition);
}

.app-store-badge:hover {
  transform: scale(1.04);
  opacity: 0.9;
}

.app-store-badge svg {
  height: 52px;
  width: auto;
}

.hero-subtitle {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 16px;
}

.hero-visual {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-phone-mockup {
  width: 280px;
  height: 560px;
  background: linear-gradient(160deg, #2A3A50, #1A2A3E);
  border-radius: 40px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  padding: 16px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
  position: relative;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, #0F1923, #162230);
  border-radius: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  overflow: hidden;
}

.phone-screen-icon {
  font-size: 3rem;
}

.phone-screen-lines {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 70%;
}

.phone-screen-line {
  height: 8px;
  background: rgba(0, 191, 165, 0.3);
  border-radius: 4px;
}

.phone-screen-line:nth-child(2) {
  width: 80%;
  background: rgba(0, 191, 165, 0.2);
}

.phone-screen-line:nth-child(3) {
  width: 60%;
  background: rgba(0, 191, 165, 0.15);
}

/* --- Section Styles --- */
.section {
  padding: 100px 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 16px;
  color: var(--color-text);
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 60px;
}

/* --- Features Grid --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 36px 28px;
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text);
}

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

/* --- Screenshots Section --- */
.screenshots-scroll {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

.screenshot-item {
  width: 200px;
  flex-shrink: 0;
}

.screenshot-img {
  width: 200px;
  height: auto;
  border-radius: 20px;
  border: 2px solid var(--color-border);
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.screenshot-img:hover {
  transform: scale(1.03);
  box-shadow: var(--shadow-lg);
}

.screenshot-label {
  text-align: center;
  margin-top: 12px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

/* --- Disclaimer Banner --- */
.disclaimer-banner {
  background: var(--color-disclaimer-bg);
  border: 1px solid var(--color-disclaimer-border);
  border-radius: var(--radius-sm);
  padding: 20px 28px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin: 0 auto;
  max-width: 900px;
}

.disclaimer-banner-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  line-height: 1;
}

.disclaimer-banner p {
  color: var(--color-disclaimer-text);
  font-size: 0.95rem;
  line-height: 1.6;
}

.disclaimer-section {
  padding: 60px 0;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 60px 0 32px;
}

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

.footer-brand p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  margin-top: 12px;
  line-height: 1.6;
}

.footer-column h4 {
  color: #FFFFFF;
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-column a {
  color: var(--color-text-light);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-column a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--color-text-light);
}

/* --- Page Styles (Privacy, Terms, Support) --- */
.page-hero {
  background: var(--color-hero-bg);
  color: var(--color-hero-text);
  padding: 120px 0 60px;
  text-align: center;
}

.page-hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.page-hero p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.05rem;
}

.page-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 24px 100px;
}

.page-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 48px;
  margin-bottom: 16px;
  color: var(--color-text);
}

.page-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 12px;
  color: var(--color-text);
}

.page-content p,
.page-content li {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 12px;
}

.page-content ul,
.page-content ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

.page-content ul {
  list-style: disc;
}

.page-content ol {
  list-style: decimal;
}

.page-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-content .effective-date {
  display: inline-block;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

.page-disclaimer {
  background: var(--color-disclaimer-bg);
  border: 1px solid var(--color-disclaimer-border);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  margin: 32px 0;
}

.page-disclaimer p {
  color: var(--color-disclaimer-text);
  font-weight: 500;
  margin-bottom: 0;
}

.lang-divider {
  border: none;
  border-top: 2px solid var(--color-border);
  margin: 64px 0;
}

/* --- FAQ --- */
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: var(--color-bg);
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  transition: background var(--transition);
}

.faq-question:hover {
  background: var(--color-bg-alt);
}

.faq-question .arrow {
  font-size: 0.8rem;
  color: var(--color-text-light);
  transition: transform var(--transition);
}

.faq-item.open .faq-question .arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 400px;
  padding: 0 24px 20px;
}

.faq-answer p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --- Contact Card --- */
.contact-card {
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  padding: 36px;
  text-align: center;
  margin-top: 48px;
}

.contact-card h3 {
  margin-top: 0;
}

.contact-card .email-link {
  display: inline-block;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: 8px;
}

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

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

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

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

  .hero-content {
    max-width: 100%;
  }

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

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

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(26, 35, 50, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    gap: 0;
    padding: 16px 0;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .nav-links a {
    display: block;
    padding: 12px 24px;
    font-size: 1rem;
  }

  .nav-links .lang-switcher {
    margin: 12px 24px;
  }

  .menu-toggle {
    display: flex;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-tagline {
    font-size: 1.1rem;
  }

  .hero-visual {
    display: none;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .feature-card {
    padding: 28px 24px;
  }

  .screenshots-scroll {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 16px;
    -webkit-overflow-scrolling: touch;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .page-hero {
    padding: 100px 0 40px;
  }

  .page-hero h1 {
    font-size: 1.8rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .hero-phone-mockup {
    width: 220px;
    height: 440px;
  }

  .screenshot-item {
    width: 160px;
  }

  .screenshot-img {
    width: 160px;
    border-radius: 16px;
  }
}