/* ════════════════════════════════════════════════════════════════════════════
 * [Drawer_Animation v20260502-02] PREMIUM EDITION
 *
 * Design language inspired by Aesop, COS, Rimowa, Apple — luxury minimal:
 *   - Warm ivory background (not sterile pure white)
 *   - Serif typography for headlines (editorial weight)
 *   - Generous whitespace + tight letter-spacing
 *   - Hairline gradient dividers (no harsh 1px lines)
 *   - Multi-layer Apple-style shadows for depth
 *   - Stagger entrance animations with custom easing
 *   - Subtle noise texture overlay (1.5% opacity, tactile feel)
 *   - Editorial image cards with pill CTA, not generic circle button
 *   - Refined hover: left-edge accent bar slides in
 *
 * The whole palette stays monochrome by default; the configurable accent
 * color applies only to focus rings + the small CTA chip — keeps the look
 * timeless rather than trend-driven.
 * ════════════════════════════════════════════════════════════════════════════ */

.da-shell {
  /* ── Layout */
  --da-drawer-width: 400px;
  --da-toggle-size: 48px;
  --da-trigger-top: 20px;
  --da-trigger-edge: 20px;

  /* ── Motion */
  --da-speed: 320ms;
  --da-speed-fast: 220ms;
  --da-easing: cubic-bezier(.32, .72, 0, 1);    /* ease-out-quart, premium feel */
  --da-easing-back: cubic-bezier(.34, 1.56, .64, 1); /* spring back, for icons */
  --da-stagger: 40ms;

  /* ── Shape */
  --da-radius: 24px;
  --da-radius-card: 16px;
  --da-radius-sm: 10px;

  /* ── Colors (warm minimal) */
  --da-bg: #fafaf7;             /* warm ivory */
  --da-surface: #ffffff;        /* card surfaces */
  --da-surface-soft: #f5f4ef;   /* hover */
  --da-surface-hover: #efece5;
  --da-text: #18181b;           /* rich black, warmer than #000 */
  --da-text-soft: #57534e;      /* warm gray */
  --da-text-faint: #a8a29e;     /* hairline labels */
  --da-border: rgba(24, 24, 27, .08);  /* hairline */
  --da-border-strong: rgba(24, 24, 27, .14);
  --da-overlay: rgba(24, 24, 27, .56);

  /* Accent — used sparingly (focus rings, small CTA) */
  --da-primary: #18181b;
  --da-accent: #18181b;          /* monochrome by default; override for color */
  --da-accent-soft: rgba(24, 24, 27, .06);

  /* ── Shadows (multi-layer, Apple-style depth) */
  --da-shadow-drawer:
    0 0 0 1px rgba(0, 0, 0, .04),
    16px 0 32px -8px rgba(0, 0, 0, .08),
    32px 0 96px -16px rgba(0, 0, 0, .14);
  --da-shadow-toggle:
    0 0 0 1px rgba(0, 0, 0, .06),
    0 1px 2px rgba(0, 0, 0, .04),
    0 4px 16px -2px rgba(0, 0, 0, .08);
  --da-shadow-toggle-active:
    0 0 0 1px rgba(0, 0, 0, .12),
    0 2px 4px rgba(0, 0, 0, .08),
    0 8px 24px -4px rgba(0, 0, 0, .16);
  --da-shadow-card:
    0 1px 2px rgba(0, 0, 0, .06),
    0 8px 24px -4px rgba(0, 0, 0, .10);

  /* ── Typography */
  --da-font-sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI",
    Roboto, "Helvetica Neue", Arial, sans-serif;
  --da-font-serif: "Tiempos Headline", "GT Sectra", "Playfair Display",
    "Source Serif Pro", Georgia, "Times New Roman", serif;

  font-family: var(--da-font-sans);
  color: var(--da-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

.da-shell *,
.da-shell *::before,
.da-shell *::after {
  box-sizing: border-box;
}

/* ══════════════════════════════════════════════════════════════════════════
 * TOGGLE BUTTON — refined hamburger with ring shadow
 * ══════════════════════════════════════════════════════════════════════════ */
.da-toggle {
  position: fixed;
  top: var(--da-trigger-top);
  left: var(--da-trigger-edge);
  width: var(--da-toggle-size);
  height: var(--da-toggle-size);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--da-surface);
  color: var(--da-text);
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  z-index: 9998;
  box-shadow: var(--da-shadow-toggle);
  transition:
    box-shadow var(--da-speed-fast) var(--da-easing),
    background-color var(--da-speed-fast) var(--da-easing),
    color var(--da-speed-fast) var(--da-easing),
    transform var(--da-speed-fast) var(--da-easing);
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

.da-toggle:hover {
  box-shadow: var(--da-shadow-toggle-active);
  transform: translateY(-1px);
}

.da-toggle:active {
  transform: translateY(0);
}

.da-toggle:focus-visible {
  outline: 2px solid var(--da-accent);
  outline-offset: 4px;
}

.da-toggle-icon {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  transition:
    opacity 200ms var(--da-easing),
    transform 320ms var(--da-easing-back);
}

.da-toggle-icon svg {
  width: 100%;
  height: 100%;
  stroke-width: 1.6;  /* finer monoline icons */
}

.da-toggle-icon-close {
  opacity: 0;
  transform: rotate(-180deg) scale(.6);
  pointer-events: none;
}

.da-shell[data-da-open="1"] .da-toggle-icon[data-da-icon="menu"] {
  opacity: 0;
  transform: rotate(180deg) scale(.6);
}

.da-shell[data-da-open="1"] .da-toggle-icon-close {
  opacity: 1;
  transform: rotate(0) scale(1);
}

.da-shell[data-da-open="1"] .da-toggle {
  background: var(--da-text);
  color: var(--da-surface);
}

/* ══════════════════════════════════════════════════════════════════════════
 * BACKDROP — soft tinted, not pure black
 * ══════════════════════════════════════════════════════════════════════════ */
.da-overlay {
  position: fixed;
  inset: 0;
  background: var(--da-overlay);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  z-index: 9996;
  transition:
    opacity var(--da-speed) var(--da-easing),
    visibility 0s var(--da-speed) linear,
    backdrop-filter var(--da-speed) var(--da-easing);
  cursor: pointer;
}

.da-shell[data-da-open="1"] .da-overlay {
  opacity: 1;
  visibility: visible;
  transition:
    opacity var(--da-speed) var(--da-easing),
    visibility 0s linear,
    backdrop-filter var(--da-speed) var(--da-easing);
}

/* ══════════════════════════════════════════════════════════════════════════
 * DRAWER — warm ivory with rounded right edge + multi-layer shadow
 * ══════════════════════════════════════════════════════════════════════════ */
.da-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--da-drawer-width);
  max-width: calc(100vw - 56px);
  background: var(--da-bg);
  border-top-right-radius: var(--da-radius);
  border-bottom-right-radius: var(--da-radius);
  box-shadow: var(--da-shadow-drawer);
  transform: translateX(-100%);
  transition: transform var(--da-speed) var(--da-easing);
  z-index: 9997;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.da-shell[data-da-open="1"] .da-drawer {
  transform: translateX(0);
}

/* Subtle noise texture overlay — adds tactile premium feel.
   Uses tiny SVG noise pattern at 1.5% opacity. */
.da-drawer::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 .35 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/></svg>");
  opacity: .015;
  pointer-events: none;
  mix-blend-mode: multiply;
}

/* ══════════════════════════════════════════════════════════════════════════
 * PANES — multi-level slide
 * ══════════════════════════════════════════════════════════════════════════ */
.da-panes {
  position: relative;
  flex: 1 1 auto;
  overflow: hidden;
}

.da-pane {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  background: var(--da-bg);
  transform: translateX(100%);
  transition:
    transform var(--da-speed) var(--da-easing),
    visibility 0s var(--da-speed) linear;
  visibility: hidden;
  overflow: hidden;
}

.da-pane-root {
  transform: translateX(0);
  visibility: visible;
}

.da-shell[data-da-pane-active="root"] .da-pane-root,
.da-shell:not([data-da-pane-active]) .da-pane-root {
  transform: translateX(0);
  visibility: visible;
  transition:
    transform var(--da-speed) var(--da-easing),
    visibility 0s linear;
}

.da-shell[data-da-pane-active]:not([data-da-pane-active="root"]) .da-pane-root {
  transform: translateX(-24%);
  visibility: hidden;
}

.da-pane-sub[data-da-active="1"] {
  transform: translateX(0);
  visibility: visible;
  transition:
    transform var(--da-speed) var(--da-easing),
    visibility 0s linear;
}

/* ══════════════════════════════════════════════════════════════════════════
 * PANE HEADER — generous, refined
 * ══════════════════════════════════════════════════════════════════════════ */
.da-pane-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 24px 24px 18px;
  background: var(--da-bg);
  flex-shrink: 0;
  position: relative;
}

/* Hairline gradient divider under header — softer than solid border */
.da-pane-header::after {
  content: '';
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 0;
  height: 1px;
  background: linear-gradient(to right,
    transparent 0%,
    var(--da-border-strong) 12%,
    var(--da-border-strong) 88%,
    transparent 100%);
}

.da-pane-title {
  flex: 1 1 auto;
  font-family: var(--da-font-serif);
  font-size: 22px;
  font-weight: 500;          /* serif fonts read heavier; 500 is plenty */
  color: var(--da-text);
  text-align: left;
  letter-spacing: -.02em;
  line-height: 1.2;
}

.da-pane-sub .da-pane-title {
  font-size: 22px;
}

.da-back,
.da-close {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--da-text-soft);
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  transition:
    background-color 200ms var(--da-easing),
    color 200ms var(--da-easing),
    transform 200ms var(--da-easing);
  -webkit-tap-highlight-color: transparent;
}

.da-back:hover,
.da-close:hover {
  background: var(--da-surface-hover);
  color: var(--da-text);
}

.da-back:active,
.da-close:active {
  transform: scale(.92);
}

.da-back:focus-visible,
.da-close:focus-visible {
  outline: 2px solid var(--da-accent);
  outline-offset: 2px;
}

.da-back svg,
.da-close svg {
  width: 18px;
  height: 18px;
  stroke-width: 1.6;
}

/* ══════════════════════════════════════════════════════════════════════════
 * PANE BODY — scrollable
 * ══════════════════════════════════════════════════════════════════════════ */
.da-pane-body {
  flex: 1 1 auto;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 8px 0 32px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--da-text-faint) transparent;
}

.da-pane-body::-webkit-scrollbar {
  width: 4px;
}

.da-pane-body::-webkit-scrollbar-thumb {
  background: var(--da-border-strong);
  border-radius: 2px;
}

.da-pane-body::-webkit-scrollbar-thumb:hover {
  background: var(--da-text-faint);
}

/* ══════════════════════════════════════════════════════════════════════════
 * FEATURED IMAGE CARD — editorial, taller, pill CTA
 * ══════════════════════════════════════════════════════════════════════════ */
.da-feature-card {
  display: block;
  margin: 16px 20px 24px;
  height: 220px;
  border-radius: var(--da-radius-card);
  overflow: hidden;
  position: relative;
  background-size: cover;
  background-position: center;
  background-color: var(--da-surface-soft);
  text-decoration: none;
  color: #fff;
  box-shadow: var(--da-shadow-card);
  transition:
    transform 400ms var(--da-easing),
    box-shadow 400ms var(--da-easing);
}

.da-feature-card:hover {
  transform: translateY(-3px);
  box-shadow:
    0 4px 8px rgba(0, 0, 0, .08),
    0 16px 40px -8px rgba(0, 0, 0, .18);
}

/* Image scale on hover — needs an inner wrapper for clean overflow.
   Use the ::before for the image so the overlay sits flat on top. */
.da-feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: inherit;
  background-size: cover;
  background-position: center;
  transition: transform 600ms var(--da-easing);
}

.da-feature-card:hover::before {
  transform: scale(1.05);
}

.da-feature-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(0, 0, 0, 0) 0%,
    rgba(0, 0, 0, .25) 55%,
    rgba(0, 0, 0, .75) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 22px;
  z-index: 1;
}

.da-feature-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 16px;
}

.da-feature-title {
  font-family: var(--da-font-serif);
  font-size: 22px;
  font-weight: 500;
  line-height: 1.15;
  color: #fff;
  letter-spacing: -.02em;
  text-shadow: 0 1px 8px rgba(0, 0, 0, .25);
}

.da-feature-caption {
  font-size: 12px;
  font-weight: 500;
  color: rgba(255, 255, 255, .85);
  letter-spacing: .02em;
}

/* Pill CTA — replaces the orange circle. Editorial and timeless. */
.da-feature-cta {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px 9px 20px;
  background: rgba(255, 255, 255, .96);
  color: var(--da-text);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .12em;
  transition:
    background-color 240ms var(--da-easing),
    transform 240ms var(--da-easing),
    padding-right 240ms var(--da-easing);
}

.da-feature-card:hover .da-feature-cta {
  background: #fff;
  padding-right: 22px;
}

.da-feature-cta svg {
  width: 14px;
  height: 14px;
  stroke-width: 2;
  transition: transform 240ms var(--da-easing);
}

.da-feature-card:hover .da-feature-cta svg {
  transform: translateX(3px);
}

/* ══════════════════════════════════════════════════════════════════════════
 * SECTIONS + LABELS — hairline gradient dividers
 * ══════════════════════════════════════════════════════════════════════════ */
.da-section {
  padding: 8px 0;
  position: relative;
}

.da-section + .da-section {
  margin-top: 8px;
  padding-top: 16px;
}

/* Hairline gradient divider between sections */
.da-section + .da-section::before {
  content: '';
  position: absolute;
  left: 28px;
  right: 28px;
  top: 0;
  height: 1px;
  background: linear-gradient(to right,
    transparent 0%,
    var(--da-border-strong) 18%,
    var(--da-border-strong) 82%,
    transparent 100%);
}

.da-label {
  font-family: var(--da-font-sans);
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .22em;
  color: var(--da-text-faint);
  padding: 12px 28px 10px;
}

.da-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.da-item {
  margin: 0;
  position: relative;
}

/* ══════════════════════════════════════════════════════════════════════════
 * STAGGER ENTRANCE — items fade up when pane becomes active
 * ══════════════════════════════════════════════════════════════════════════ */
.da-pane[data-da-active="1"] .da-section,
.da-pane-root .da-section {
  animation: da-fade-up 480ms var(--da-easing) both;
}

.da-pane[data-da-active="1"] .da-feature-card {
  animation: da-fade-up 520ms var(--da-easing) both;
}

.da-pane[data-da-active="1"] .da-section:nth-child(1) { animation-delay: 60ms; }
.da-pane[data-da-active="1"] .da-section:nth-child(2) { animation-delay: 120ms; }
.da-pane[data-da-active="1"] .da-section:nth-child(3) { animation-delay: 180ms; }

@keyframes da-fade-up {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════════════════════════════════════════════════
 * LINKS — refined, with left-edge accent bar on hover
 * ══════════════════════════════════════════════════════════════════════════ */
.da-link {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 16px 28px 16px 32px;
  background: transparent;
  border: 0;
  text-align: left;
  text-decoration: none;
  color: var(--da-text);
  font-family: inherit;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -.005em;
  cursor: pointer;
  position: relative;
  transition:
    background-color 240ms var(--da-easing),
    padding-left 240ms var(--da-easing);
  -webkit-tap-highlight-color: transparent;
}

/* Left-edge accent bar — slides in from 0 to 3px on hover */
.da-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 3px;
  height: 0;
  background: var(--da-accent);
  border-radius: 0 2px 2px 0;
  transform: translateY(-50%);
  transition:
    height 280ms var(--da-easing),
    background-color 240ms var(--da-easing);
}

.da-link:hover,
.da-link:focus-visible {
  background: var(--da-accent-soft);
  padding-left: 36px;
  outline: none;
}

.da-link:hover::before,
.da-link:focus-visible::before {
  height: 24px;
}

.da-link-text {
  flex: 1 1 auto;
  min-width: 0;
}

.da-link-chevron,
.da-link-arrow {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--da-text-faint);
  transition: transform 280ms var(--da-easing), color 240ms var(--da-easing);
}

.da-link:hover .da-link-chevron,
.da-link:hover .da-link-arrow,
.da-link:focus-visible .da-link-chevron,
.da-link:focus-visible .da-link-arrow {
  color: var(--da-text);
  transform: translateX(4px);
}

.da-link-chevron svg,
.da-link-arrow svg {
  width: 16px;
  height: 16px;
  stroke-width: 1.6;
}

/* ══════════════════════════════════════════════════════════════════════════
 * REDUCED MOTION
 * ══════════════════════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  .da-drawer,
  .da-overlay,
  .da-pane,
  .da-toggle,
  .da-toggle-icon,
  .da-link,
  .da-link::before,
  .da-link-chevron,
  .da-link-arrow,
  .da-feature-card,
  .da-feature-card::before {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* ══════════════════════════════════════════════════════════════════════════
 * RESPONSIVE
 * ══════════════════════════════════════════════════════════════════════════ */
@media (max-width: 480px) {
  .da-shell { --da-drawer-width: 340px; }
  .da-feature-card { height: 180px; margin: 12px 16px 20px; }
  .da-pane-header { padding: 20px 20px 16px; }
  .da-link { padding: 14px 24px 14px 28px; font-size: 15px; }
  .da-pane-title { font-size: 20px; }
}

@media (min-width: 768px) {
  .da-shell { --da-drawer-width: 440px; }
  .da-feature-card { height: 240px; }
}