/* みらいヘルスパートナーズ - Modern Design System */

/* ========================================
   IMPORTS
   ======================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Noto+Sans+JP:wght@400;500;600;700;800&display=swap');

/* ========================================
   CSS CUSTOM PROPERTIES
   ======================================== */
:root {
  /* Colors - Professional Healthcare Palette */
  --color-primary-50: #eff6ff;
  --color-primary-100: #dbeafe;
  --color-primary-200: #bfdbfe;
  --color-primary-300: #93c5fd;
  --color-primary-400: #60a5fa;
  --color-primary-500: #3b82f6;
  --color-primary-600: #2563eb;
  --color-primary-700: #1d4ed8;
  --color-primary-800: #1e40af;
  --color-primary-900: #1e3a8a;

  --color-secondary-50: #ecfdf5;
  --color-secondary-100: #d1fae5;
  --color-secondary-200: #a7f3d0;
  --color-secondary-300: #6ee7b7;
  --color-secondary-400: #34d399;
  --color-secondary-500: #10b981;
  --color-secondary-600: #059669;
  --color-secondary-700: #047857;
  --color-secondary-800: #065f46;
  --color-secondary-900: #064e3b;

  --color-accent-400: #fbbf24;
  --color-accent-500: #f59e0b;
  --color-accent-600: #d97706;

  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #60a5fa 100%);
  --gradient-secondary: linear-gradient(135deg, #059669 0%, #10b981 50%, #34d399 100%);
  --gradient-accent: linear-gradient(135deg, #d97706 0%, #f59e0b 50%, #fbbf24 100%);
  --gradient-hero: linear-gradient(135deg, #1e40af 0%, #2563eb 25%, #3b82f6 50%, #10b981 100%);
  --gradient-overlay: linear-gradient(180deg, rgba(30, 64, 175, 0.05) 0%, rgba(16, 185, 129, 0.05) 100%);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-japanese: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Font Sizes - Responsive Scale */
  --text-xs: 0.75rem;
  /* 12px */
  --text-sm: 0.875rem;
  /* 14px */
  --text-base: 1rem;
  /* 16px */
  --text-lg: 1.125rem;
  /* 18px */
  --text-xl: 1.25rem;
  /* 20px */
  --text-2xl: 1.5rem;
  /* 24px */
  --text-3xl: 1.875rem;
  /* 30px */
  --text-4xl: 2.25rem;
  /* 36px */
  --text-5xl: 3rem;
  /* 48px */
  --text-6xl: 3.75rem;
  /* 60px */

  /* Spacing */
  --space-1: 0.25rem;
  /* 4px */
  --space-2: 0.5rem;
  /* 8px */
  --space-3: 0.75rem;
  /* 12px */
  --space-4: 1rem;
  /* 16px */
  --space-5: 1.25rem;
  /* 20px */
  --space-6: 1.5rem;
  /* 24px */
  --space-8: 2rem;
  /* 32px */
  --space-10: 2.5rem;
  /* 40px */
  --space-12: 3rem;
  /* 48px */
  --space-16: 4rem;
  /* 64px */
  --space-20: 5rem;
  /* 80px */
  --space-24: 6rem;
  /* 96px */

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* Border Radius */
  --radius-sm: 0.375rem;
  /* 6px */
  --radius-md: 0.5rem;
  /* 8px */
  --radius-lg: 0.75rem;
  /* 12px */
  --radius-xl: 1rem;
  /* 16px */
  --radius-2xl: 1.5rem;
  /* 24px */
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-japanese);
  color: var(--color-gray-800);
  background-color: var(--color-gray-50);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-japanese);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-gray-900);
  margin-bottom: var(--space-4);
}

h1 {
  font-size: var(--text-4xl);
  font-weight: 800;
}

h2 {
  font-size: var(--text-3xl);
  font-weight: 700;
}

h3 {
  font-size: var(--text-2xl);
  font-weight: 600;
}

h4 {
  font-size: var(--text-xl);
  font-weight: 600;
}

p {
  margin-bottom: var(--space-4);
  line-height: 1.8;
}

a {
  color: var(--color-primary-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-700);
}

/* ========================================
   LAYOUT UTILITIES
   ======================================== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-20) 0;
  position: relative;
}

.section-alt {
  background-color: white;
}

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.98);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-6);
  max-width: 1280px;
  margin: 0 auto;
}

.nav-logo {
  font-size: var(--text-xl);
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-8);
  align-items: center;
}

.nav-link {
  color: var(--color-gray-700);
  font-weight: 500;
  font-size: var(--text-sm);
  transition: all var(--transition-fast);
  position: relative;
  padding: var(--space-2) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: var(--color-primary-600);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-gray-700);
  transition: all var(--transition-base);
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  font-family: var(--font-japanese);
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn-secondary {
  background: var(--gradient-secondary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary-600);
  border: 2px solid var(--color-primary-600);
}

.btn-outline:hover {
  background: var(--color-primary-600);
  color: white;
}

.btn-lg {
  padding: var(--space-5) var(--space-10);
  font-size: var(--text-lg);
}

/* ========================================
   CARDS
   ======================================== */
.card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2xl);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-3xl);
  margin-bottom: var(--space-4);
  background: var(--gradient-primary);
  color: white;
}

.card-title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
  color: var(--color-gray-900);
}

.card-description {
  color: var(--color-gray-600);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ========================================
   GRID LAYOUTS
   ======================================== */
.grid {
  display: grid;
  gap: var(--space-8);
}

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

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

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

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  /* background: var(--gradient-hero); REMOVED old gradient */
  background-image: url('hero-bg.png');
  background-size: cover;
  background-position: center top;
  /* Focus on the doctor's face area */
  position: relative;
  overflow: hidden;
  padding-top: var(--space-20);
}

/* Gradient Overlay for Readability */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  /* Light overlay on the left fading to transparent on the right */
  background: linear-gradient(to right,
      rgba(255, 255, 255, 0.95) 0%,
      rgba(255, 255, 255, 0.8) 40%,
      rgba(255, 255, 255, 0) 100%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: left;
  /* Validate new left alignment */
  color: var(--color-gray-900);
  /* Darker text for contrast against light overlay */
  max-width: 650px;
  /* Restrict width to keep text on the left */
  padding: 0 var(--space-6);
  margin-left: max(5%, calc((100% - 1200px) / 2));
  /* Container-like alignment */
}

.hero-title {
  font-size: var(--text-5xl);
  font-weight: 800;
  margin-bottom: var(--space-6);
  color: var(--color-primary-900);
  /* Deep blue for title */
  line-height: 1.2;
  /* text-shadow removed as it's cleaner without on light background */
}

.hero-subtitle {
  font-size: var(--text-xl);
  margin-bottom: var(--space-10);
  color: var(--color-gray-700);
  font-weight: 600;
  line-height: 1.6;
}

/* Scroll context improvements */
.section {
  scroll-margin-top: 80px;
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  justify-content: flex-start;
  /* Align buttons left */
  flex-wrap: wrap;
}

/* ========================================
   SECTION HEADERS
   ======================================== */
.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: 800;
  margin-bottom: var(--space-4);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-gray-600);
  max-width: 700px;
  margin: 0 auto;
}

/* ========================================
   ANIMATIONS
   ======================================== */
/* ========================================
   ANIMATIONS
   ======================================== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays if needed */
.delay-100 {
  transition-delay: 100ms;
}

.delay-200 {
  transition-delay: 200ms;
}

.delay-300 {
  transition-delay: 300ms;
}

.delay-400 {
  transition-delay: 400ms;
}

.delay-500 {
  transition-delay: 500ms;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
  :root {
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.75rem;
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --text-5xl: 2rem;
    --text-4xl: 1.75rem;
    --text-3xl: 1.5rem;
    --space-20: 3rem;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: var(--space-6);
    box-shadow: var(--shadow-lg);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
  }

  .nav-menu.active {
    transform: translateX(0);
  }

  .nav-toggle {
    display: flex;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: var(--text-3xl);
    line-height: 1.3;
  }

  .hero-content {
    margin-left: var(--space-4);
    margin-right: var(--space-4);
    text-align: left;
    max-width: 100%;
    /* Darken overlay on mobile for text readability over the image */
    background: rgba(255, 255, 255, 0.85);
    padding: var(--space-8) var(--space-4);
    border-radius: var(--radius-xl);
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
  }

  .btn {
    width: 100%;
    max-width: none;
    padding: var(--space-4); /* Ensure good touch target */
  }

  /* Adjust section spacing */
  .section {
    padding: var(--space-16) 0;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 var(--space-4);
  }

  .section {
    padding: var(--space-12) 0;
  }

  .card {
    padding: var(--space-6);
  }
}

/* ========================================
   FOOTER
   ======================================== */
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-8);
  text-align: left;
}

.footer-nav h4,
.footer-legal h4 {
  color: white;
  margin-bottom: var(--space-4);
  font-size: var(--text-lg);
}

.footer-nav ul,
.footer-legal ul {
  list-style: none;
  padding: 0;
}

.footer-nav li,
.footer-legal li {
  margin-bottom: var(--space-2);
}

.footer-nav a,
.footer-legal a {
  color: var(--color-gray-400);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-nav a:hover,
.footer-legal a:hover {
  color: var(--color-primary-400);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* ========================================
   POLICY PAGE
   ======================================== */
.policy-content p {
  margin-bottom: var(--space-6);
}

.policy-section {
  margin-bottom: var(--space-8);
}

.policy-section h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 2px solid var(--color-primary-100);
}

.policy-section ul {
  padding-left: var(--space-6);
  margin-bottom: var(--space-6);
  color: var(--color-gray-600);
}

.policy-section li {
  margin-bottom: var(--space-2);
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.text-center {
  text-align: center;
}

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

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

.mb-4 {
  margin-bottom: var(--space-4);
}

.mb-6 {
  margin-bottom: var(--space-6);
}

.mb-8 {
  margin-bottom: var(--space-8);
}

.mb-12 {
  margin-bottom: var(--space-12);
}

.mt-4 {
  margin-top: var(--space-4);
}

.mt-6 {
  margin-top: var(--space-6);
}

.mt-8 {
  margin-top: var(--space-8);
}

.hidden {
  display: none;
}

.block {
  display: block;
}

.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

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

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

.justify-between {
  justify-content: space-between;
}

.gap-4 {
  gap: var(--space-4);
}

.gap-6 {
  gap: var(--space-6);
}

.gap-8 {
  gap: var(--space-8);
}

/* ========================================
   CONTACT FORM STYLES
   ======================================== */
.contact-form-container {
  max-width: 600px;
  margin: 0 auto;
  background: white;
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

.form-group {
  margin-bottom: var(--space-6);
  text-align: left;
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.form-control {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-family: var(--font-japanese);
  color: var(--color-gray-900);
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary-500);
  background-color: white;
  box-shadow: 0 0 0 4px var(--color-primary-50);
}

.form-control::placeholder {
  color: var(--color-gray-400);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

.form-submit-btn {
  width: 100%;
  margin-top: var(--space-4);
}

@media (max-width: 768px) {
  .contact-form-container {
    padding: var(--space-6) var(--space-4);
  }
}