/* Design system - custom CSS properties and utilities */
:root {
  --radius: 0.625rem;
  /* Editorial luxury coastal palette */
  --background: oklch(0.985 0.005 80);       /* warm off-white canvas */
  --foreground: oklch(0.18 0.012 60);         /* soft ink */
  --muted-ink: oklch(0.45 0.012 60);          /* muted body grey */
  --sand: oklch(0.94 0.012 75);               /* warm sand panel */
  --hairline: oklch(0.18 0.012 60 / 0.12);    /* fine line */
  --accent: oklch(0.55 0.04 50);              /* warm accent */
  --card: oklch(1 0 0);
  --card-foreground: oklch(0.129 0.042 264.695);
  --popover: oklch(1 0 0);
  --popover-foreground: oklch(0.129 0.042 264.695);
  --primary: oklch(0.208 0.042 265.755);
  --primary-foreground: oklch(0.984 0.003 247.858);
  --secondary: oklch(0.968 0.007 247.896);
  --secondary-foreground: oklch(0.208 0.042 265.755);
  --muted: oklch(0.968 0.007 247.896);
  --muted-foreground: oklch(0.554 0.046 257.417);
  --accent: oklch(0.968 0.007 247.896);
  --accent-foreground: oklch(0.208 0.042 265.755);
  --destructive: oklch(0.577 0.245 27.325);
  --destructive-foreground: oklch(0.984 0.003 247.858);
  --border: oklch(0.929 0.013 255.508);
  --input: oklch(0.929 0.013 255.508);
  --ring: oklch(0.704 0.04 256.788);
}

.dark {
  --background: oklch(0.129 0.042 264.695);
  --foreground: oklch(0.984 0.003 247.858);
  --card: oklch(0.208 0.042 265.755);
  --card-foreground: oklch(0.984 0.003 247.858);
  --popover: oklch(0.208 0.042 265.755);
  --popover-foreground: oklch(0.984 0.003 247.858);
  --primary: oklch(0.929 0.013 255.508);
  --primary-foreground: oklch(0.208 0.042 265.755);
  --secondary: oklch(0.279 0.041 260.031);
  --secondary-foreground: oklch(0.984 0.003 247.858);
  --muted: oklch(0.279 0.041 260.031);
  --muted-foreground: oklch(0.704 0.04 256.788);
  --accent: oklch(0.279 0.041 260.031);
  --accent-foreground: oklch(0.984 0.003 247.858);
  --destructive: oklch(0.704 0.191 22.216);
  --destructive-foreground: oklch(0.984 0.003 247.858);
  --border: oklch(1 0 0 / 10%);
  --input: oklch(1 0 0 / 15%);
  --ring: oklch(0.551 0.027 264.364);
}

/* Base styles */
* {
  border-color: var(--color-border, var(--border));
}

body {
  background-color: var(--background);
  color: var(--foreground);
  font-family: 'Inter', ui-sans-serif, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

html {
  scroll-behavior: smooth;
}

.font-serif {
  font-family: 'Instrument Serif', ui-serif, Georgia, serif;
  font-weight: 400;
}

/* Color utilities */
.text-ink {
  color: var(--foreground);
}

.text-muted-ink {
  color: var(--muted-ink);
}

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

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

.border-hairline {
  border-color: var(--hairline);
}

.divide-hairline > * + * {
  border-top: 1px solid var(--hairline);
}

/* Reveal animations - scroll-triggered with Intersection Observer */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 1100ms cubic-bezier(.22,.61,.36,1), transform 1100ms cubic-bezier(.22,.61,.36,1);
  will-change: opacity, transform;
}

.reveal.in {
  opacity: 1;
  transform: none;
}

.reveal-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 1200ms cubic-bezier(.22,.61,.36,1), transform 1200ms cubic-bezier(.22,.61,.36,1);
}

.reveal-left.in {
  opacity: 1;
  transform: none;
}

.reveal-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 1200ms cubic-bezier(.22,.61,.36,1), transform 1200ms cubic-bezier(.22,.61,.36,1);
}

.reveal-right.in {
  opacity: 1;
  transform: none;
}

/* Hover underline effect */
.hover-underline {
  position: relative;
}

.hover-underline::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -3px;
  height: 1px;
  width: 100%;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .5s cubic-bezier(.22,.61,.36,1);
}

.hover-underline:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Typography system - 4 core styles */
.t-h1 {
  font-family: 'Instrument Serif', ui-serif, Georgia, serif;
  font-style: italic;
  font-weight: 400;
  font-size: clamp(2.25rem, 5.5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.t-h2 {
  font-family: 'Instrument Serif', ui-serif, Georgia, serif;
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.875rem, 4vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.005em;
}

.t-h3 {
  font-family: 'Instrument Serif', ui-serif, Georgia, serif;
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.125rem, 1.6vw, 1.5rem);
  line-height: 1.3;
}

.t-body {
  font-family: 'Inter', ui-sans-serif, system-ui, sans-serif;
  font-style: normal;
  font-weight: 400;
  font-size: 0.8125rem; /* 13px */
  line-height: 1.7;
  letter-spacing: 0;
}

.t-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.6875rem; /* 11px */
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-left, .reveal-right {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* Splide Carousel Customization */
.splide__track {
  overflow: hidden;
}

.splide__list {
  display: flex;
}

.splide__slide {
  flex-shrink: 0;
  width: 100%;
}

.splide__pagination {
  position: static !important;
  bottom: auto !important;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.5rem;
  padding: 0;
}

.splide__pagination__page {
  border: none !important;
  padding: 0 !important;
  cursor: pointer;
  display: inline-block;
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 9999px !important;
  background-color: rgba(24, 24, 24, 0.25) !important;
  opacity: 1 !important;
  transform: none !important;
  transition: background-color 300ms ease;
}

.splide__pagination__page.is-active {
  background-color: var(--foreground) !important;
  transform: none !important;
}

/* Lightbox */
#lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 400ms ease;
}

#lightbox.is-open {
  opacity: 1;
  pointer-events: auto;
}

#lightbox img {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  display: block;
  transition: transform 400ms ease, opacity 400ms ease;
  transform: scale(0.96);
  opacity: 0;
}

#lightbox.is-open img {
  transform: scale(1);
  opacity: 1;
}

#lightbox-close {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 9999px;
  background: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #1a1a1a;
  transition: opacity 200ms ease;
}

#lightbox-close:hover {
  opacity: 0.7;
}