/* css/base.css — CSS Reset, Typography, Grid, Utilities
   Aaina Makeup Studio (Odisha)
   Follows DESIGN.md and RULES.md
*/

/* --------------------------------------------------------------------------
   1. Modern Reset
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  min-height: 100svh;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  overflow-x: hidden;
  border-radius: var(--radius);
}

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

input, button, textarea, select {
  font: inherit;
  color: inherit;
  border-radius: var(--radius);
  touch-action: manipulation;
}

button, a {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

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

ul, ol {
  list-style: none;
}

table {
  border-collapse: collapse;
  width: 100%;
}

/* --------------------------------------------------------------------------
   2. Skip Link (Accessibility - PRD §8, RULES §B)
   -------------------------------------------------------------------------- */
.skip {
  position: absolute;
  top: -9999px;
  left: var(--page-pad);
  z-index: 10000;
  padding: 0.6rem 1.25rem;
  background-color: var(--ink);
  color: var(--paper);
  border: 1px solid var(--sindoor);
  font-size: var(--fs-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.skip:focus,
.skip:focus-visible {
  top: 10px;
  outline: 2px solid var(--sindoor);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   3. Accessible Focus States (DESIGN §8)
   -------------------------------------------------------------------------- */
:focus-visible {
  outline: var(--focus-outline);
  outline-offset: var(--focus-offset);
}

/* --------------------------------------------------------------------------
   4. Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4,
.masthead,
.numeral,
blockquote,
.review-quote,
.site-header__wordmark,
.site-footer__masthead,
.site-footer__col-title,
.booking-sheet__title,
.lightbox__caption-title,
.carousel__caption-title,
.studio-card__num,
.studio-card__name,
.studio-tab__num,
.studio-tab__name,
.service-row__num,
.service-row__title,
.page-404__numeral {
  font-family: var(--font-display);
  font-optical-sizing: none;
  font-variation-settings: "opsz" var(--display-opsz);
  color: inherit;
  text-wrap: balance;
}

.masthead,
.hero-cover__masthead,
.site-footer__masthead,
.site-header__wordmark {
  -webkit-text-stroke: 0.012em currentColor;
}

.masthead {
  font-size: var(--fs-masthead);
  font-weight: 800;
  line-height: var(--lh-masthead);
  letter-spacing: var(--ls-masthead);
  text-transform: uppercase;
}

h1, .h1 {
  font-size: var(--fs-h1);
  font-weight: 750;
  line-height: var(--lh-h1);
  letter-spacing: var(--ls-h1);
}

h2, .h2 {
  font-size: var(--fs-h2);
  font-weight: 750;
  line-height: var(--lh-h2);
  letter-spacing: var(--ls-h2);
}

h3, .h3 {
  font-size: var(--fs-h3);
  font-weight: 700;
  line-height: var(--lh-h3);
}

h4, .h4 {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.25;
}

/* Italic accent (DESIGN §3: max ONE word per heading) */
.italic-accent, h1 em, h2 em, h3 em {
  font-style: italic;
  font-weight: 400;
}

/* Editorial Eyebrow / Label (DESIGN §3) */
.eyebrow, .label {
  display: block;
  font-family: var(--font-text);
  font-size: var(--fs-label);
  line-height: var(--lh-label);
  font-weight: 600;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--muted);
}

/* Editorial Numeral (01-06) */
.numeral {
  font-family: var(--font-display);
  font-size: var(--fs-num);
  line-height: 1;
  font-weight: 700;
  color: var(--sindoor);
  font-optical-sizing: none;
  font-variation-settings: "opsz" var(--display-opsz);
}

p {
  max-width: 62ch;
  color: var(--ink);
  overflow-wrap: anywhere;
}

p.lead {
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  line-height: 1.5;
  color: var(--muted);
}

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

.text-sindoor {
  color: var(--sindoor);
}

/* Text Wrapping & Safety (RULES §C9) */
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4,
p, address, blockquote, figcaption {
  overflow-wrap: anywhere;
  hyphens: manual;
}

/* --------------------------------------------------------------------------
   5. Layout Primitives (RULES §C7)
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-left: max(var(--page-pad), env(safe-area-inset-left, 0px));
  padding-right: max(var(--page-pad), env(safe-area-inset-right, 0px));
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-4);
}

/* Vertical flow primitive */
.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.stack--sm {
  gap: var(--space-2);
}

.stack--lg {
  gap: var(--space-6);
}

/* Horizontal wrapping cluster primitive */
.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

/* Responsive 1 -> 2 column split primitive */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .split {
    grid-template-columns: 1fr 1fr;
  }
}

/* Intrinsic fluid grid primitive */
.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  gap: var(--space-4);
}

/* Flex & text child overflow safety */
.cluster > *,
.stack > *,
.split > *,
.grid > *,
.grid-auto > * {
  min-width: 0;
}

/* Sections */
.section {
  position: relative;
  padding-block: var(--section-pad);
}

.section--sm {
  padding-block: clamp(2.5rem, 5vw, 4.5rem);
}

.section--paper {
  background-color: var(--paper);
  color: var(--ink);
}

.section--bone {
  background-color: var(--bone);
  color: var(--ink);
}

.section--ink {
  background-color: var(--ink);
  color: var(--paper);
}

.section--ink .eyebrow,
.section--ink .text-muted {
  color: rgba(243, 238, 230, 0.65);
}

.section--ink .numeral {
  color: var(--sindoor);
}

/* Hairlines (DESIGN §4) */
.hairline {
  border-bottom: var(--border-hairline);
}

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

.section--ink .hairline,
.section--ink .hairline-top {
  border-color: var(--line-inv);
}

/* Asymmetric editorial margins */
.offset-col-1 { grid-column-start: 2; }
.offset-col-2 { grid-column-start: 3; }
.offset-col-3 { grid-column-start: 4; }

/* --------------------------------------------------------------------------
   6. Image Placeholder Block (DESIGN §7 & Image Brief Section B)
   -------------------------------------------------------------------------- */
.img-placeholder,
.aaina-placeholder {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background-color: var(--bone);
  color: var(--ink);
  border: var(--border-hairline);
  padding: clamp(1rem, 2.5vw, 1.75rem);
  position: relative;
  overflow: hidden;
  user-select: none;
  width: 100%;
}

.aaina-placeholder__label {
  align-self: flex-start;
  font-family: var(--font-text);
  font-size: var(--fs-label);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  font-weight: 600;
  color: var(--sindoor); /* Small sindoor uppercase label top-left */
}

.aaina-placeholder__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.aaina-placeholder__title {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2vw, 1.6rem);
  font-weight: 600;
  line-height: 1.1;
  color: var(--ink); /* "Photo coming soon" in Bodoni bottom-left */
}

.aaina-placeholder__desc {
  font-family: var(--font-text);
  font-size: var(--fs-label);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted); /* Short description in muted label text */
  max-width: 45ch;
}

.img-placeholder {
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  text-align: center;
}

.section--bone .img-placeholder,
.section--bone .aaina-placeholder {
  background-color: var(--paper);
}

.img-placeholder__category {
  font-size: var(--fs-label);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  font-weight: 600;
  color: var(--ink);
}

.img-placeholder__text {
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}

/* Oval mirror mask (DESIGN §1 — used in ONE or TWO places only) */
.mirror-mask {
  border-radius: 50% / 35%;
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   7. Placeholders marker for unverified owner data (CONTENT §1)
   -------------------------------------------------------------------------- */
.placeholder-mark {
  display: inline-block;
  background-color: rgba(193, 18, 31, 0.08);
  color: var(--sindoor);
  padding-inline: 0.25em;
  border-bottom: 1px dashed var(--sindoor);
  font-size: 0.9em;
}

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

/* --------------------------------------------------------------------------
   9. Scroll Reveal Animations (DESIGN §6)
   -------------------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms var(--ease-editorial), transform 600ms var(--ease-editorial);
  will-change: opacity, transform;
}

/* Above-the-fold hero cover elements are always immediately visible */
.hero-cover [data-reveal],
[data-reveal].is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delay helpers */
[data-delay="1"] { transition-delay: 100ms; }
[data-delay="2"] { transition-delay: 200ms; }
[data-delay="3"] { transition-delay: 300ms; }
[data-delay="4"] { transition-delay: 400ms; }

/* --------------------------------------------------------------------------
   10. Reduced Motion (DESIGN §6)
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}