/* ============================================================
   CHLOE & THOMAS — Wedding Website
   Plain HTML + CSS. Fluid, responsive, 2-panel layout.
   ============================================================ */

/* ------------------------------------------------------------
   TYPOGRAPHY — font imports
   ------------------------------------------------------------ */
@import url("https://fonts.googleapis.com/css2?family=Source+Sans+3:wght@300;400;500;600;700&display=swap");

@font-face {
  font-family: "ED Venta Neue";
  /* Primary file (drop real font here); fallback to existing repo file. */
  src:
    url("../fonts/ed-venta-neue.otf") format("opentype"),
    url("../fonts/ED-Venta-Nueva-Sans.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* ------------------------------------------------------------
   DESIGN TOKENS
   ------------------------------------------------------------ */
:root {
  /* left panel */
  --color-left-bg: #f6542e;
  --color-left-text: #fffbc7;

  /* right panel */
  --color-right-text: #003b5b;
  --color-accent: #f6542e;

  /* per-page right panel backgrounds */
  --color-home-bg: #acdef9;
  --color-schedule-bg: #feedff;
  --color-dress-bg: #e5f6ff;
  --color-travel-bg: #f1ffd6;
  --color-sftips-bg: #ffdbc5;
  --color-story-bg: #fee1ff;
  --color-registry-bg: #acdef9;
  --color-faq-bg: #fffbd8;

  /* fonts */
  --font-script: "altesse-std-64pt", cursive;
  --font-sans: "ED Venta Neue", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Source Sans 3", "Source Sans Pro", system-ui, sans-serif;

  /* fluid spacing */
  --pad-panel: clamp(1.75rem, 4vw, 4.5rem);

  /* mobile header bar */
  --mobile-header-height: 3.5rem;
}

/* ------------------------------------------------------------
   RESET
   ------------------------------------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  color: var(--color-right-text);
  background: var(--color-left-bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

p {
  margin: 0;
}

/* ------------------------------------------------------------
   LAYOUT — two-panel split
   ------------------------------------------------------------ */
.site {
  display: flex;
  min-height: 100vh;
  align-items: stretch;
}

/* Right panel creates an isolated stacking context so dragged
   photos can never visually overlap the left panel. */
.panel--right {
  isolation: isolate;
}

.panel {
  position: relative;
}

/* Left panel: fixed height = 100vh, scrolls if content ever
   overflows (only at very short viewports). Centering is
   handled by .left-inner { margin: auto 0 } below. */
.panel--left {
  flex: 0 0 42%;
  height: 100vh;
  overflow-y: auto;
  background: var(--color-left-bg);
  color: var(--color-left-text);
  padding: 0 var(--pad-panel);
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Inner wrapper: margin: auto centers it when viewport is taller
   than content; collapses to 0 when content is taller, so the
   panel simply scrolls from the top. */
.left-inner {
  margin: auto 0;
  padding: var(--pad-panel) 0;
  width: 100%;
  max-width: 40rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  /* Use min(vw, vh) so the gap shrinks on short viewports too. */
  gap: clamp(1rem, min(3.5vw, 3vh), 3.5rem);
}

.panel--right {
  flex: 1 1 58%;
  height: 100vh;
  overflow-y: auto;
  color: var(--color-right-text);
  padding: var(--pad-panel);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* per-page right panel background */
.page-home .panel--right {
  background: var(--color-home-bg);
}
.page-schedule .panel--right {
  background: var(--color-schedule-bg);
}
.page-dress .panel--right {
  background: var(--color-dress-bg);
}
.page-travel .panel--right {
  background: var(--color-travel-bg);
}
.page-sftips .panel--right {
  background: var(--color-sftips-bg);
}
.page-story .panel--right {
  background: var(--color-story-bg);
  overflow: hidden;
}
.page-registry .panel--right {
  background: var(--color-registry-bg);
}
.page-faq .panel--right {
  background: var(--color-faq-bg);
}

/* ------------------------------------------------------------
   LEFT PANEL — names hero
   Use min(vw, vh) so names shrink on short viewports and the
   whole left panel stays within 100vh without scrolling.
   ------------------------------------------------------------ */
.names {
  text-align: center;
  font-family: var(--font-script);
  line-height: 0.95;
  letter-spacing: 0.01em;
}

.names__name {
  display: block;
  font-size: clamp(3.5rem, min(14vw, 13vh), 13rem);
  margin: 0;
}

.names__amp {
  display: block;
  font-size: clamp(2.25rem, min(9vw, 9vh), 9rem);
  line-height: 1;
  margin: 0.02em 0;
}

/* ------------------------------------------------------------
   LEFT PANEL — WHERE / WHEN
   ------------------------------------------------------------ */
.where-when {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(0.75rem, 2.5vw, 2.5rem);
  width: 100%;
  text-align: center;
}

.ww-label {
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: clamp(1rem, min(1.35vw, 1.65vh), 1.4rem);
  margin-bottom: 0.35em;
}

.ww-headline {
  font-family: var(--font-sans);
  font-size: clamp(1.8rem, min(3.3vw, 3.75vh), 3.4rem);
  line-height: 1.05;
  margin: 0.15em 0 0.55em;
}

.ww-detail {
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: clamp(0.875rem, min(1.2vw, 1.45vh), 1.3rem);
  line-height: 1.45;
}

/* ------------------------------------------------------------
   LEFT PANEL — nav grid (4 × 2 on desktop)
   ------------------------------------------------------------ */
.nav-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(0.35rem, 0.6vw, 0.8rem);
  width: 100%;
}

/* Button text is 15% larger than original spec. */
.nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-left-text);
  padding: clamp(0.65rem, min(1.1vw, 1.2vh), 1.15rem)
    clamp(0.25rem, 0.5vw, 0.65rem);
  font-family: var(--font-sans);
  font-size: clamp(0.85rem, min(1.2vw, 1.55vh), 1.3rem);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--color-left-text);
  text-align: center;
  line-height: 1;
  transition:
    background-color 0.15s ease,
    color 0.15s ease;
  cursor: pointer;
  white-space: nowrap;
}

.nav-btn:hover,
.nav-btn:focus-visible,
.nav-btn--active {
  background-color: var(--color-left-text);
  color: var(--color-left-bg);
  outline: none;
}

/* ------------------------------------------------------------
   RIGHT PANEL — page title (ED Venta, one per page)
   ------------------------------------------------------------ */
.page-title {
  font-family: var(--font-sans);
  font-size: clamp(1.5rem, 3vw, 3rem);
  line-height: 1;
  color: var(--color-accent);
  margin: 0 0 clamp(1rem, 2vw, 2rem);
}

/* ------------------------------------------------------------
   RIGHT PANEL — typography primitives
   ------------------------------------------------------------ */
.heading {
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: clamp(0.95rem, 1.15vw, 1.2rem);
  font-weight: 500;
  margin: 0 0 clamp(0.8rem, 1.3vw, 1.3rem);
  line-height: 1.2;
}

.body-text {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 1.1vw, 1.15rem);
  line-height: 1.55;
  max-width: 30rem;
}

/* inline <em> within body copy — uppercase sans "emphasis swap" */
.body-text em,
.emph {
  font-family: var(--font-sans);
  font-style: normal;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.body-link {
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 1px solid currentColor;
}

/* ------------------------------------------------------------
   RIGHT PANEL — homepage RSVP card (floats over photos)
   z-index: 9999 so dragged photos (z-index starts at ~10, grows
   with each drag) can never cover it within the stacking context.
   ------------------------------------------------------------ */
.page-home .panel--right {
  overflow: hidden;
}

.rsvp-card {
  /* Absolutely centred within the right panel so it's always
     dead-centre regardless of the script font's bounding box. */
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 9999;
  text-align: center;
  color: var(--color-accent);
  /* Generous horizontal padding so border clears the script swashes */
  padding: clamp(1rem, 2vw, 2rem) clamp(3rem, 7vw, 8rem);
  background: var(--color-home-bg);
  border: 2px solid var(--color-accent);
  white-space: nowrap;
}

.rsvp-card__kicker {
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: clamp(1rem, 1.8vw, 1.75rem);
  margin-bottom: 0.05em;
}

.rsvp-card__word {
  font-family: var(--font-script);
  font-size: clamp(3.5rem, 8vw, 8rem);
  line-height: 0.9;
  letter-spacing: 0.02em;
  /* Script R's left-side swash inflates advance width — nudge left
     so the visual glyph mass appears centred in the card. */
  transform: translateX(-6%);
  display: block;
}

/* ------------------------------------------------------------
   RIGHT PANEL — dress colour palette
   3 × 3 grid of circles; centre cell (row 2, col 2) left empty
   to match the Figma layout. Hex codes come from the design file.
   ------------------------------------------------------------ */
.palette {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(0.75rem, 2vw, 1.5rem);
  margin-top: clamp(2rem, 4vw, 3.5rem);
  max-width: 30rem;
}

.palette__swatch {
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  border-width: 3px;
  border-style: solid;
}

.palette__swatch--empty {
  visibility: hidden;
}

/* ------------------------------------------------------------
   RIGHT PANEL — schedule
   ------------------------------------------------------------ */
.schedule-list {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: clamp(1.5rem, 3vw, 3rem);
  row-gap: clamp(0.75rem, 1.5vw, 1.5rem);
  align-items: baseline;
  max-width: 44rem;
}

.schedule-time {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(1.75rem, 3.25vw, 3.25rem);
  letter-spacing: 0.02em;
  white-space: nowrap;
  line-height: 1;
}

.schedule-desc {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 1.15vw, 1.2rem);
  line-height: 1.4;
}

/* ------------------------------------------------------------
   RIGHT PANEL — travel
   ------------------------------------------------------------ */
.travel-section + .travel-section {
  margin-top: clamp(1.5rem, 2.75vw, 2.75rem);
}

.travel-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 1.1vw, 1.15rem);
  line-height: 1.7;
}

/* ------------------------------------------------------------
   RIGHT PANEL — paragraph spacing (adjacent body-text blocks)
   ------------------------------------------------------------ */
.body-text + .body-text {
  margin-top: clamp(0.75rem, 1.5vw, 1.25rem);
}

/* ------------------------------------------------------------
   RIGHT PANEL — pages with long content start at top, not centre
   ------------------------------------------------------------ */
.page-dress .panel--right,
.page-travel .panel--right,
.page-sftips .panel--right,
.page-schedule .panel--right,
.page-story .panel--right,
.page-faq .panel--right {
  justify-content: flex-start;
}

/* ------------------------------------------------------------
   RIGHT PANEL — FAQ
   ------------------------------------------------------------ */

.faq-item + .faq-item {
  margin-top: clamp(1.25rem, 2vw, 2rem);
}

.faq-item .heading {
  margin-bottom: 0.35em;
}

/* ------------------------------------------------------------
   DRAGGABLE PHOTOS
   Absolutely positioned within right panel.
   .panel--right has isolation: isolate, so z-indexes here are
   scoped — photos can't overlap the left panel.
   ------------------------------------------------------------ */
.photos {
  position: absolute;
  inset: 0;
  overflow: visible;
  pointer-events: none;
}

.photo {
  position: absolute;
  pointer-events: auto;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  background: #fff;
  padding: 0.5rem;
  will-change: transform;
  line-height: 0;
}

.photo.is-dragging {
  cursor: grabbing;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.22);
}

.photo img {
  display: block;
  width: 100%;
  height: auto;
  pointer-events: none;
  -webkit-user-drag: none;
  user-select: none;
}

/* ------------------------------------------------------------
   MOBILE HEADER (injected by JS, hidden on desktop)
   ------------------------------------------------------------ */
.mobile-header {
  display: none;
}

/* ------------------------------------------------------------
   BACK-TO-TOP BUTTON (mobile only, shown/hidden by JS)
   Floats at the bottom of the screen when scrolled past the
   left-panel cover screen.
   ------------------------------------------------------------ */
.back-to-top {
  display: none; /* revealed only inside the mobile media query */
  position: fixed;
  bottom: clamp(1.25rem, 5vw, 2rem);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-left-bg);
  color: var(--color-left-text);
  border: 1px solid var(--color-left-text);
  font-family: var(--font-sans);
  font-size: clamp(0.7rem, 2.8vw, 0.9rem);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 0.65rem 1.5rem;
  cursor: pointer;
  z-index: 50;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* Thin fixed orange strip at the very top — always visible when
   scrolled into content, reminds users the menu is above. */
.mobile-top-strip {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: var(--color-left-bg);
  z-index: 40;
  pointer-events: none;
}

/* Scroll-down hint button (mobile only, shown/hidden by JS).
   Floats just above the 50px right-panel colour peek so users
   know there's content below. Fades out once they scroll down. */
.scroll-down {
  display: none; /* revealed only inside the mobile media query */
  position: fixed;
  bottom: 60px; /* sits in the orange zone, above the 50px peek */
  left: 50%;
  transform: translateX(-50%);
  background: transparent;
  color: var(--color-left-text);
  border: 1px solid var(--color-left-text);
  font-family: var(--font-sans);
  font-size: clamp(0.7rem, 2.8vw, 0.9rem);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 0.65rem 1.5rem;
  cursor: pointer;
  z-index: 50;
  white-space: nowrap;
  opacity: 1;
  pointer-events: auto;
  transition: opacity 0.25s ease;
}

.scroll-down.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.drawer-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 98;
  cursor: pointer;
}

.drawer-backdrop.is-visible {
  display: block;
}

.hamburger-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  flex-shrink: 0;
}

.hamburger-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-left-text);
  border-radius: 1px;
  transition: opacity 0.2s ease;
}

/* ------------------------------------------------------------
   MOBILE — cover-screen layout (≤ 900px)
   Left panel IS the home screen: full-width, 100dvh, shown first.
   Right panel content scrolls in below it.
   Hamburger/drawer elements (injected by JS) stay hidden.
   ------------------------------------------------------------ */
@media (max-width: 900px) {
  /* Stack panels vertically */
  .site {
    display: block;
  }

  /* Left panel: full-width cover screen, slightly less than one viewport
     tall so the right panel's colour peeks at the bottom. */
  .panel--left {
    position: relative;
    width: 100%;
    flex: none;
    height: calc(100vh - 50px);
    height: calc(100dvh - 50px);
    overflow-y: auto;
    /* Undo any drawer transforms */
    transform: none;
    transition: none;
    z-index: auto;
    box-shadow: none;
  }

  /* Scale names up for full-width screen */
  .panel--left .names__name {
    font-size: clamp(3rem, 15vw, 7rem);
  }
  .panel--left .names__amp {
    font-size: clamp(2rem, 10vw, 5rem);
  }
  /* Scale where/when for full width */
  .panel--left .ww-headline {
    font-size: clamp(1.3rem, 4.5vw, 2.5rem);
  }
  .panel--left .ww-detail {
    font-size: clamp(0.75rem, 2.5vw, 1.2rem);
  }
  .panel--left .ww-label {
    font-size: clamp(0.75rem, 2.2vw, 1rem);
  }

  /* Nav grid: 2 × 4 on mobile */
  .nav-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Right panel: full-width, sits below the left panel */
  .panel--right {
    flex: none;
    width: 100%;
    height: auto;
    min-height: 100vh;
    min-height: 100dvh;
    max-height: none;
    overflow-y: visible;
    padding-top: var(--pad-panel);
    justify-content: flex-start;
  }

  /* Home + story panels lost their overflow clip on mobile */
  .page-home .panel--right,
  .page-story .panel--right {
    overflow: visible;
  }

  /* Hide the JS-injected hamburger header — not needed here */
  .mobile-header {
    display: none;
  }

  /* Enable back-to-top button, scroll-down button, and orange top-strip on mobile */
  .back-to-top,
  .scroll-down,
  .mobile-top-strip {
    display: block;
  }

  /* RSVP card: restore to normal flow on mobile (right panel has
     height: auto, so position: absolute + top: 50% won't work). */
  .rsvp-card {
    position: relative;
    top: auto;
    left: auto;
    transform: none;
    align-self: center;
    margin: auto;
    white-space: normal;
  }

  /* Adjust homepage RSVP card size for mobile */
  .rsvp-card__word {
    font-size: clamp(3rem, 15vw, 6rem);
  }
  .rsvp-card__kicker {
    font-size: clamp(0.85rem, 3.5vw, 1.2rem);
  }

  /* Schedule times on mobile */
  .schedule-time {
    font-size: clamp(1.5rem, 6.5vw, 2.5rem);
  }
}