/* ============================================
   I FEEL SPA INTERNATIONAL — Design System
   Inspired by Chenot.com
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Brand Colors — from logo concentric rings */
  --color-sage: #7A8C7A;
  --color-forest: #4A7A52;
  --color-teal: #3B9E8E;
  --color-blue: #3D6FAD;
  --color-indigo: #5B4A9E;

  /* Neutrals */
  --color-cream: #F0EDE8;
  --color-cream-dark: #E5E0D8;
  --color-white: #FFFFFF;
  --color-black: #000000;
  --color-dark: #0D0D0D;
  --color-text: #1A1A1A;
  --color-text-light: #555555;
  --color-text-muted: #999999;

  /* Typography */
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'DM Sans', 'Inter', Helvetica, Arial, sans-serif;

  /* Font Sizes */
  --fs-h1: clamp(2.5rem, 6vw, 4.5rem);
  --fs-h2: clamp(2rem, 5vw, 3.5rem);
  --fs-h3: clamp(1.5rem, 3vw, 2.25rem);
  --fs-body: 1.125rem;
  --fs-small: 1rem;
  --fs-eyebrow: 0.75rem;
  --fs-nav: 0.875rem;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 5rem;
  --space-2xl: 7.5rem;
  --space-section: clamp(3.75rem, 8vw, 7.5rem);

  /* Layout */
  --max-width: 1280px;
  --gutter: 2.5rem;
  --card-gap: 1.5rem;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 0.2s;
  --duration-normal: 0.4s;
  --duration-slow: 0.8s;

  /* Z-index */
  --z-nav: 1000;
  --z-drawer: 1100;
  --z-overlay: 1050;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-cream);
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) ease;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol { list-style: none; }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 300;
  line-height: 1.1;
  color: var(--color-text);
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

h1 em, h2 em, h3 em {
  font-style: italic;
  font-weight: 300;
}

.eyebrow {
  font-family: var(--font-sans);
  font-size: var(--fs-eyebrow);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 4px;
  color: var(--color-sage);
  margin-bottom: var(--space-md);
  display: block;
}

.body-text {
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--color-text-light);
  max-width: 540px;
}

/* --- Navigation Labels --- */
.nav-label {
  font-family: var(--font-sans);
  font-size: var(--fs-nav);
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 3px;
}

/* --- CTA Links --- */
.cta-link {
  font-family: var(--font-sans);
  font-size: var(--fs-eyebrow);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 3px;
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color var(--duration-fast) ease;
}

.cta-link:hover {
  color: var(--color-forest);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: var(--fs-eyebrow);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 3px;
  padding: 1rem 2.5rem;
  transition: all var(--duration-normal) var(--ease-out);
  white-space: nowrap;
}

.btn--ghost {
  border: 1px solid var(--color-white);
  color: var(--color-white);
  background: transparent;
}

.btn--ghost:hover {
  background: var(--color-white);
  color: var(--color-text);
}

.btn--filled {
  background: var(--color-sage);
  color: var(--color-white);
  border: 1px solid var(--color-sage);
}

.btn--filled:hover {
  background: var(--color-forest);
  border-color: var(--color-forest);
}

.btn--dark {
  border: 1px solid var(--color-text);
  color: var(--color-text);
  background: transparent;
}

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

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

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

.section--cream { background: var(--color-cream); }
.section--dark { background: var(--color-dark); color: var(--color-white); }
.section--black { background: var(--color-black); color: var(--color-white); }

/* --- Reveal Animation Classes --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-image {
  opacity: 0;
  transform: translateY(40px) scale(0.98);
  transition: opacity 1s var(--ease-out),
              transform 1s var(--ease-out);
}

.reveal-image.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Stagger delays */
.stagger-1 { transition-delay: 0s; }
.stagger-2 { transition-delay: 0.12s; }
.stagger-3 { transition-delay: 0.24s; }
.stagger-4 { transition-delay: 0.36s; }

/* Fallback: ensure content is accessible even without JS animation */
@keyframes revealFallback {
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.reveal, .reveal-image {
  animation: revealFallback 0s ease 2s forwards;
}

/* --- Card Hover --- */
.card-image-wrap {
  overflow: hidden;
}

.card-image-wrap img {
  transition: transform 0.6s ease;
}

.card-image-wrap:hover img {
  transform: scale(1.04);
}