/* ==========================================================================
   Curie IT — Styles
   Warm, Polished App Aesthetic
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties
   -------------------------------------------------------------------------- */
:root {
  /* Warm backgrounds - slightly more saturated */
  --bg-page: #F9F6F2;
  --bg-surface: #FFFFFF;
  --bg-elevated: #F3EFE9;
  --bg-warm: #EDE8E0;
  --bg-apps: #F5F2ED;
  
  /* Warm accent palette - richer tones */
  --accent: #D9C9B5;
  --accent-dark: #C4B19A;
  --accent-ring: #E5DAC9;
  --accent-subtle: rgba(217, 201, 181, 0.25);
  
  /* Green - softer, more natural */
  --green: #6BBF6E;
  --green-dark: #5AAD5D;
  --green-subtle: rgba(107, 191, 110, 0.12);
  
  /* Text hierarchy */
  --text-primary: #1F1F1F;
  --text-secondary: #4D4D4D;
  --text-muted: #7A7A7A;
  --text-faint: #A3A3A3;
  
  /* Borders */
  --border-light: rgba(0, 0, 0, 0.05);
  --border-medium: rgba(0, 0, 0, 0.08);
  
  /* Shadows - warmer, softer */
  --shadow-sm: 0 2px 8px rgba(139, 115, 85, 0.06);
  --shadow-md: 0 8px 24px rgba(139, 115, 85, 0.1);
  --shadow-lg: 0 12px 32px rgba(139, 115, 85, 0.12);
  
  /* Typography */
  --font-display: 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-body: 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  
  /* Spacing scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  
  /* Sizing */
  --container-max: 820px;
  --header-height: 4rem;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Border radius - more rounded */
  --radius-sm: 0.625rem;
  --radius-md: 0.875rem;
  --radius-lg: 1.125rem;
  --radius-xl: 1.5rem;
  --radius-2xl: 2rem;
  --radius-full: 9999px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-height) + var(--space-xl));
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-page);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
 
}

@media (max-width: 880px) {
  .container {
    padding: 0 var(--space-md);
  }
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(249, 246, 242, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  transition: opacity var(--transition-fast);
}

.logo:hover {
  opacity: 0.7;
}

.logo-image {
  height:  36px;
  width: auto;
}

.logo-text {
  color: var(--text-primary);
}

.logo-accent {
  color: var(--green);
}

/* Navigation */
.main-nav {
  display: none;
}

@media (min-width: 640px) {
  .main-nav {
    display: block;
  }
}

.nav-list {
  display: flex;
  gap: var(--space-xl);
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: var(--space-sm) 0;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

@media (min-width: 640px) {
  .nav-toggle {
    display: none;
  }
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(249, 246, 242, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

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

@media (min-width: 640px) {
  .mobile-nav-overlay {
    display: none;
  }
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xl);
}

.mobile-nav-link {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--green);
}

/* --------------------------------------------------------------------------
   Section Styles
   -------------------------------------------------------------------------- */
.section-header {
  margin-bottom: var(--space-xl);
}

.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  background: var(--bg-warm);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* --------------------------------------------------------------------------
   About Section
   -------------------------------------------------------------------------- */
.about-section {
  padding: var(--space-xl) 0 var(--space-3xl);
}

.about-hero {
  padding: calc(var(--header-height) + var(--space-4xl)) 0 var(--space-3xl);
}

@media (max-width: 639px) {
  .about-hero {
    padding: calc(var(--header-height) + var(--space-2xl)) 0 var(--space-3xl);
  }
}

.about-text {
  margin-bottom: var(--space-2xl);
}

.about-text p {
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
}

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

.values-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.values-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.values-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  background: var(--bg-surface);
  padding: 0.625rem 1rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.values-marker {
  flex-shrink: 0;
  width: 7px;
  height: 7px;
  background: var(--green);
  border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   Apps Section
   -------------------------------------------------------------------------- */
.apps-section {
  padding: var(--space-2xl) 0 var(--space-3xl);
  background: var(--bg-apps);
  border-radius: var(--radius-2xl);
}

.apps-grid {
  display: grid;
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .apps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }
}

/* App Card - more polished */
.app-card {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg) var(--space-xl);
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-smooth), transform var(--transition-smooth);
}

.app-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.app-icon {
  flex-shrink: 0;
}

/* Circular app icon like the calorie app */
.app-icon-placeholder {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--bg-warm) 100%);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  border: 2px solid var(--accent-ring);
}

.app-info {
  flex: 1;
  min-width: 0;
  padding-top: 0.25rem;
}

.app-name {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  letter-spacing: -0.01em;
}

.app-description {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: var(--space-sm);
}

.app-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--green-dark);
  transition: gap var(--transition-fast);
}

.app-link:hover {
  gap: 0.625rem;
}

.app-link-arrow {
  transition: transform var(--transition-fast);
}

.app-link:hover .app-link-arrow {
  transform: translateX(2px);
}

.app-link-disabled {
  color: var(--text-faint);
  cursor: default;
  font-weight: 500;
}

.app-link-disabled:hover {
  gap: 0.35rem;
}

/* --------------------------------------------------------------------------
   Contact Page
   -------------------------------------------------------------------------- */
.contact-page {
  min-height: calc(100vh - var(--header-height));
  padding-top: var(--header-height);
}

.page-header {
  padding: var(--space-4xl) 0 var(--space-xl);
}

@media (max-width: 639px) {
  .page-header {
    padding: var(--space-2xl) 0 var(--space-xl);
  }
}

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.contact-content {
  max-width: 480px;
}

.contact-intro {
  margin-bottom: var(--space-xl);
}

.contact-intro p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.75;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.contact-card {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg) var(--space-xl);
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-smooth), transform var(--transition-smooth);
}

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

.contact-card-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--green-subtle);
  border-radius: var(--radius-full);
  color: var(--green-dark);
}

.contact-card-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.contact-card-detail {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.contact-note {
  padding: var(--space-lg);
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
}

.contact-note p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.contact-note strong {
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  padding: var(--space-2xl) 0 var(--space-xl);
  margin-top: var(--space-2xl);
  border-top: 1px solid var(--border-light);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-logo {
  font-size: 1.1rem;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: var(--space-xl);
}

.footer-nav {
  display: flex;
  gap: var(--space-lg);
}

.footer-nav a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

.copyright {
  font-size: 0.8rem;
  color: var(--text-faint);
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Selection */
::selection {
  background: var(--accent);
  color: var(--text-primary);
}

/* Focus styles */
:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}