/* ==========================================
   POWER IN SUBTLETY
   True authority never shouts
   ========================================== */

/* Reset + Base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Colors - Hierarchy from tone, not brightness */
  --glass-white: rgba(255, 255, 255, 0.65);
  --glass-border: rgba(255, 255, 255, 0.18);
  --text-primary: #1d1d1f;
  --text-secondary: #6e6e73;
  --text-tertiary: #86868b;
  --accent-blue: #0071e3;
  --accent-hover: #0077ed;
  --shadow-sm: 0 2px 16px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.10);
  
  /* Spacing - The invisible gestures of respect */
  --space-xs: 12px;
  --space-sm: 24px;
  --space-md: 48px;
  --space-lg: 96px;
  --space-xl: 144px;
  --space-xxl: 192px;
  
  /* Radius */
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 24px;
  
  /* Motion as breath */
  --transition-breath: 800ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-exhale: 600ms cubic-bezier(0.4, 0, 0.6, 1);
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-primary);
  background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
  line-height: 1.7;
  font-size: 17px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* ==========================================
   NAVIGATION - Calm authority
   ========================================== */
.site-header {
  position: relative;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  max-width: calc(100% - var(--space-md));
  margin: 0 auto;
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  background: var(--glass-white);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  margin-top: var(--space-sm);
  margin-left: var(--space-sm);
  margin-right: var(--space-sm);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-breath);
}

.nav .brand {
  font-weight: 500;
  font-size: 19px;
  text-decoration: none;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  transition: color var(--transition-exhale);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: auto;
}

.nav .brand svg {
  transition: transform var(--transition-exhale);
}

.nav .brand:hover {
  color: var(--accent-blue);
}

.nav .brand:hover svg {
  transform: translateY(-2px);
}

.nav a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 400;
  transition: color var(--transition-exhale);
  position: relative;
}

.nav a:not(.brand):hover {
  color: var(--text-primary);
}

.nav .spacer {
  display: none;
}

/* ==========================================
   HERO - The Threshold
   Invites stillness before speech
   ========================================== */
.hero {
  max-width: 1080px;
  margin: 0 auto;
  padding: var(--space-xxl) var(--space-md) var(--space-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-height: 70vh;
  justify-content: center;
}

.hero-content {
  margin-bottom: var(--space-lg);
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 300;
  margin-bottom: var(--space-sm);
  letter-spacing: -2px;
  color: var(--text-primary);
  opacity: 0;
  animation: breatheIn 1200ms cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.hero-subtitle {
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-size: 0.9rem;
  opacity: 0;
  animation: breatheIn 1200ms cubic-bezier(0.4, 0, 0.2, 1) 200ms forwards;
}

.hero-description {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
  font-weight: 300;
  opacity: 0;
  animation: breatheIn 1200ms cubic-bezier(0.4, 0, 0.2, 1) 400ms forwards;
}

.hero-cta {
  opacity: 0;
  animation: breatheIn 1200ms cubic-bezier(0.4, 0, 0.2, 1) 600ms forwards;
}

.btn {
  display: inline-block;
  padding: 16px 48px;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 400;
  font-size: 15px;
  letter-spacing: 0.3px;
  transition: all var(--transition-breath);
  backdrop-filter: blur(10px);
}

.btn:hover {
  background: var(--glass-white);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

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

/* ==========================================
   SPACER SECTION - Breathing room
   The pause between threshold and content
   ========================================== */
.spacer-section {
  height: var(--space-xl);
}

/* ==========================================
   SECTIONS - Architecture of Presence
   Each section has its own atmosphere
   ========================================== */
.section {
  max-width: 1080px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md);
}

.about-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  padding-top: var(--space-md);
  padding-bottom: var(--space-xxl);
  position: relative;
}

/* About section hover reveal */
.about-hidden .about-content {
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-breath);
  pointer-events: none;
}

.about-hidden:hover .about-content,
.about-hidden:focus-within .about-content {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.section-header {
  margin-bottom: var(--space-md);
}

.section-header h1,
.section-header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  letter-spacing: -1px;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.section-header h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 400;
  letter-spacing: -0.5px;
  opacity: 0.9;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 300;
  max-width: 720px;
  line-height: 1.8;
}

/* Content with rhythm of contrast */
.section-content {
  max-width: 720px;
}

.section-content p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: var(--space-md);
  line-height: 1.8;
  font-weight: 300;
}

/* Emphasis - Weight without aggression */
.section-content p.emphasis {
  font-size: 1.3rem;
  color: var(--text-primary);
  font-weight: 400;
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

/* ==========================================
   GLASS CARDS - Subtle presence
   ========================================== */
.card {
  background: var(--glass-white);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  margin-top: var(--space-md);
  transition: all var(--transition-breath);
  box-shadow: var(--shadow-sm);
}

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

.card h3 {
  font-size: 1.3rem;
  font-weight: 500;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.3px;
  color: var(--text-primary);
}

.card h3 a {
  text-decoration: none;
  color: var(--text-primary);
  transition: color var(--transition-exhale);
}

.card h3 a:hover {
  color: var(--accent-blue);
}

.card p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 0;
  font-weight: 300;
}

.card p:last-child {
  margin-bottom: 0;
}

/* ==========================================
   CONTACT PAGE - Minimalistic hover reveal
   ========================================== */
.contact-section {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  max-width: 600px;
  width: 100%;
  margin: 0 auto;
}

.contact-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-md);
  align-items: center;
  padding: var(--space-md);
  transition: all var(--transition-breath);
  border-radius: var(--radius-md);
  cursor: default;
}

.contact-icon {
  font-size: 2rem;
  opacity: 0.3;
  transition: all var(--transition-breath);
}

.contact-details {
  opacity: 0;
  transform: translateX(-10px);
  transition: all var(--transition-breath);
}

.contact-item:hover .contact-icon {
  opacity: 1;
  transform: scale(1.1);
}

.contact-item:hover .contact-details {
  opacity: 1;
  transform: translateX(0);
}

.contact-item:hover {
  background: var(--glass-white);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
}

.contact-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-tertiary);
  margin-bottom: 4px;
  font-weight: 500;
}

.contact-details p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 300;
}

.contact-details a {
  color: var(--text-primary);
  font-weight: 400;
  transition: color var(--transition-exhale);
}

.contact-details a:hover {
  color: var(--accent-blue);
}

/* ==========================================
   FOOTER - Quiet signature
   ========================================== */
.site-footer {
  max-width: 1080px;
  margin: var(--space-xl) auto var(--space-md);
  padding: var(--space-md);
  text-align: center;
  color: var(--text-tertiary);
  font-size: 14px;
  font-weight: 300;
}

.site-footer p {
  opacity: 0.7;
  transition: opacity var(--transition-exhale);
}

.site-footer p:hover {
  opacity: 1;
}

/* ==========================================
   ANIMATIONS - Motion as Breath
   The page inhales as you arrive
   ========================================== */
@keyframes breatheIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes breatheOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-20px);
  }
}

/* ==========================================
   RESPONSIVE - Maintaining rhythm
   ========================================== */
@media (max-width: 768px) {
  :root {
    --space-md: 24px;
    --space-lg: 64px;
    --space-xl: 96px;
    --space-xxl: 128px;
  }
  
  .nav {
    gap: var(--space-sm);
  }
  
  .nav .spacer {
    display: none;
  }
  
  .hero {
    padding: var(--space-xl) var(--space-sm) var(--space-lg);
    min-height: 60vh;
  }
  
  .section {
    padding: var(--space-md) var(--space-sm);
  }
  
  .about-section {
    padding-bottom: var(--space-xl);
  }
  
  .spacer-section {
    height: var(--space-md);
  }
  
  /* Contact page mobile adjustments */
  .contact-item {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-sm);
  }
  
  .contact-details {
    opacity: 1;
    transform: translateX(0);
  }
  
  .contact-icon {
    opacity: 1;
  }
}

/* ==========================================
   LINKS - Subtle invitation
   ========================================== */
a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color var(--transition-exhale);
}

a:hover {
  color: var(--accent-hover);
}

/* ==========================================
   ACCESSIBILITY - Respect for experience
   ========================================== */
html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus states - visible but elegant */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 4px;
  border-radius: 4px;
}