/* =============================================================
   LARKSPRING — MAIN STYLESHEET
   Table of contents:
   1. Variables
   2. Reset
   3. Typography
   4. Utilities
   5. Layout / Buttons
   6. Navigation
   7. Hero
   8. Heritage
   9. Design (Extraordinary by Design)
   10. Social carousel
   11. Newsletter
   12. Footer
   13. Animations
   14. Media Queries
   ============================================================= */

/* ---------------------------------------------------------------
   1. VARIABLES
   --------------------------------------------------------------- */
:root {
  /* Color palette — sampled from the reference brand's signature blue bottle */
  --color-blue: #00339b;          /* primary brand blue: hero/footer/active states */
  --color-blue-deep: #00205c;     /* darker navy band: newsletter */
  --color-blue-soft: #1f4fb0;     /* hover / lighter accent */
  --color-ink: #1b2340;           /* headings on white */
  --color-text: #33394f;          /* body copy on white */
  --color-brass: #c2792c;         /* gold accent, "since" eyebrow */
  --color-white: #ffffff;
  --color-paper: #ffffff;
  --color-mist: #d8deea;
  --color-overlay: rgba(0, 17, 51, 0.42);
  --color-overlay-strong: rgba(0, 12, 36, 0.62);

  /* Typography */
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --fs-h1: clamp(2.4rem, 5.6vw, 4.6rem);
  --fs-h2: clamp(1.9rem, 3.6vw, 3rem);
  --fs-h3: clamp(1.3rem, 2vw, 1.7rem);
  --fs-body-lg: clamp(1rem, 1.3vw, 1.15rem);
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-caption: 0.78rem;
  --fs-eyebrow: 0.78rem;

  /* Spacing scale */
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-sm: 1.25rem;
  --space-md: 2rem;
  --space-lg: 3.5rem;
  --space-xl: 6rem;
  --space-2xl: 9rem;

  /* Layout */
  --container-max: 1320px;
  --container-pad: clamp(1.25rem, 5vw, 4rem);
  --header-h: 88px;
  --header-h-scrolled: 64px;
  --radius-pill: 100px;
  --radius-md: 4px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 200ms;
  --dur-base: 420ms;
  --dur-slow: 800ms;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body, h1, h2, h3, h4, p, figure, ul, ol {
  margin: 0;
}

ul { padding: 0; list-style: none; }

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

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

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

input { font: inherit; }

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible {
  outline: 2px solid var(--color-brass);
  outline-offset: 3px;
}

/* ---------------------------------------------------------------
   3. TYPOGRAPHY
   --------------------------------------------------------------- */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}

h1 { font-size: var(--fs-h1); line-height: 1.05; }
h2 { font-size: var(--fs-h2); line-height: 1.1; }
h3 { font-size: var(--fs-h3); line-height: 1.2; }

em {
  font-style: italic;
  font-weight: 400;
}

p { font-size: var(--fs-body); }

.body-lg {
  font-size: var(--fs-body-lg);
  line-height: 1.65;
  max-width: 40ch;
}

.body-lg--center { margin: 0 auto; text-align: center; }

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-eyebrow);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 600;
  color: var(--color-brass);
  margin-bottom: var(--space-2xs);
}

.eyebrow--center { text-align: center; }

/* ---------------------------------------------------------------
   4. UTILITIES
   --------------------------------------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-ink);
  color: var(--color-white);
  padding: 0.75rem 1.25rem;
  z-index: 999;
  border-radius: 0 0 var(--radius-md) 0;
}
.skip-link:focus { left: 0; }

.link-underline {
  display: inline-block;
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-bottom: 1px solid currentColor;
  padding-bottom: 0.3em;
  transition: opacity var(--dur-fast) var(--ease-out);
}
.link-underline:hover { opacity: 0.6; }
.link-underline--on-dark { color: var(--color-white); }

/* Scroll-reveal base state */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal[data-reveal-delay="1"] { transition-delay: 0.1s; }
.reveal[data-reveal-delay="2"] { transition-delay: 0.2s; }
.reveal[data-reveal-delay="3"] { transition-delay: 0.3s; }

/* ---------------------------------------------------------------
   5. LAYOUT / BUTTONS
   --------------------------------------------------------------- */
section { position: relative; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.95rem 1.9rem;
  transition: background-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--pill { border-radius: var(--radius-pill); }

.btn--solid {
  background-color: var(--color-blue);
  color: var(--color-white);
  border: 1px solid var(--color-blue);
}
.btn--solid:hover {
  background-color: var(--color-blue-soft);
  border-color: var(--color-blue-soft);
}

/* ---------------------------------------------------------------
   6. NAVIGATION
   --------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  color: var(--color-white);
  transition: background-color var(--dur-base) var(--ease-out),
              height var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out);
}

.site-header.is-scrolled {
  height: var(--header-h-scrolled);
  background-color: var(--color-blue);
  box-shadow: 0 6px 24px rgba(0,0,0,0.18);
}

.site-header.is-hidden { transform: translateY(-100%); }

.site-header__inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-md);
}

.menu-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  justify-self: start;
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.menu-trigger__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 20px;
}
.menu-trigger__bars span {
  display: block;
  height: 1.5px;
  background-color: currentColor;
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast) var(--ease-out);
}
.menu-trigger[aria-expanded="true"] .menu-trigger__bars span:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}
.menu-trigger[aria-expanded="true"] .menu-trigger__bars span:nth-child(2) { opacity: 0; }
.menu-trigger[aria-expanded="true"] .menu-trigger__bars span:nth-child(3) {
  transform: translateY(-5.5px) rotate(-45deg);
}

.brand {
  grid-column: 2;
  justify-self: center;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.buy-now {
  justify-self: end;
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-fast) var(--ease-out);
}
.buy-now:hover { border-color: currentColor; }

.mobile-nav {
  position: fixed;
  inset: 0;
  background-color: var(--color-blue-deep);
  color: var(--color-white);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg) var(--container-pad);
  transform: translateY(-100%);
  opacity: 0;
  transition: transform var(--dur-base) var(--ease-in-out), opacity var(--dur-base) var(--ease-in-out);
  z-index: 99;
}

.mobile-nav[data-state="open"] {
  transform: translateY(0);
  opacity: 1;
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.mobile-nav__link {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-style: italic;
}

.mobile-nav__cta { width: auto; }

/* ---------------------------------------------------------------
   7. HERO
   --------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: var(--color-white);
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 17, 51, 0.85) 0%,
    rgba(0, 17, 51, 0.3) 38%,
    rgba(0, 17, 51, 0.05) 65%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--container-pad) var(--space-2xl);
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  align-items: end;
  gap: var(--space-md);
}

.hero__caption {
  max-width: 38ch;
}

.hero__caption .link-underline {
  margin-bottom: var(--space-sm);
}

.hero__subhead {
  font-size: var(--fs-body);
  color: rgba(255,255,255,0.9);
  max-width: 38ch;
}

.hero__headline {
  text-align: right;
  font-style: italic;
  letter-spacing: 0.01em;
}

.hero__headline em {
  font-style: normal;
  font-weight: 600;
}

.hero__scroll-cue {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 1.5px solid rgba(255,255,255,0.6);
  border-radius: var(--radius-pill);
  z-index: 1;
}

.hero__scroll-cue span {
  position: absolute;
  top: 6px;
  left: 50%;
  width: 4px;
  height: 8px;
  margin-left: -2px;
  border-radius: 2px;
  background-color: var(--color-white);
  animation: scrollCueBounce 2.2s var(--ease-in-out) infinite;
}

@keyframes scrollCueBounce {
  0%   { transform: translateY(0); opacity: 1; }
  60%  { transform: translateY(14px); opacity: 0; }
  61%  { transform: translateY(0); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

/* ---------------------------------------------------------------
   8. HERITAGE
   --------------------------------------------------------------- */
.heritage {
  background-color: var(--color-white);
  padding: var(--space-2xl) var(--container-pad) var(--space-xl);
  max-width: var(--container-max);
  margin: 0 auto;
}

.heritage__intro {
  max-width: 640px;
  margin: 0 auto var(--space-xl);
  text-align: center;
}

.heritage__intro h2 { margin-bottom: var(--space-sm); }

.heritage__tagline {
  margin-top: var(--space-md);
  font-size: var(--fs-body);
  color: var(--color-ink);
}

.heritage__row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  align-items: start;
}

.heritage__item--2 { margin-top: var(--space-lg); }
.heritage__item--3 { margin-top: var(--space-2xs); }

.heritage__item img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  margin-bottom: var(--space-sm);
  transition: transform 1s var(--ease-out);
}

.heritage__item:hover img { transform: scale(1.03); }

.heritage__item--2 img { aspect-ratio: 5 / 7; }
.heritage__item--3 img { aspect-ratio: 4 / 4.4; }

.heritage__item figcaption { text-align: center; }

/* ---------------------------------------------------------------
   9. DESIGN SECTION
   --------------------------------------------------------------- */
.design { min-height: 92vh; }

.design__media {
  position: relative;
  width: 100%;
  height: 92vh;
  min-height: 560px;
  overflow: hidden;
}

.design__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.design__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 17, 51, 0.78) 0%,
    rgba(0, 17, 51, 0.15) 40%,
    rgba(0, 17, 51, 0.05) 70%
  );
}

.design__content {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad) var(--space-2xl);
  color: var(--color-white);
}

.design__content {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  align-items: end;
  gap: var(--space-md);
}

.design__caption { max-width: 38ch; }

.design__caption .body-lg {
  color: rgba(255,255,255,0.92);
  margin-bottom: var(--space-sm);
}

.design__headline {
  color: var(--color-white);
  text-align: right;
  font-style: italic;
}

.design__headline em {
  font-style: normal;
  font-weight: 600;
}

/* ---------------------------------------------------------------
   10. SOCIAL CAROUSEL
   --------------------------------------------------------------- */
.social {
  background-color: var(--color-white);
  padding: var(--space-2xl) 0 var(--space-xl);
}

.social__intro {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  margin-bottom: var(--space-lg);
  text-align: center;
}

.social__carousel {
  overflow-x: auto;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.social__carousel::-webkit-scrollbar { display: none; }

.social__track {
  display: flex;
  gap: 6px;
  padding: 0 var(--container-pad);
  width: max-content;
}

.social__tile {
  scroll-snap-align: start;
  width: min(320px, 78vw);
  flex-shrink: 0;
}

.social__carousel { scroll-snap-type: x proximity; }

.social__tile a {
  display: block;
  aspect-ratio: 4 / 5;
  overflow: hidden;
}

.social__tile:nth-child(2) { width: min(360px, 84vw); }

.social__tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-base) var(--ease-out);
}
.social__tile a:hover img { transform: scale(1.05); }

.social__outro {
  max-width: var(--container-max);
  margin: var(--space-lg) auto 0;
  padding: 0 var(--container-pad);
}

.social__outro p {
  max-width: 52ch;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.social__outro-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.social__nav { display: flex; gap: var(--space-md); }

.social__nav-btn {
  font-size: 1.1rem;
  color: var(--color-ink);
  transition: opacity var(--dur-fast) var(--ease-out);
}
.social__nav-btn:hover { opacity: 0.55; }

/* ---------------------------------------------------------------
   11. NEWSLETTER
   --------------------------------------------------------------- */
.newsletter {
  background-color: var(--color-blue-deep);
  color: var(--color-white);
  padding: var(--space-2xl) var(--container-pad);
  text-align: center;
}

.newsletter__inner { max-width: 540px; margin: 0 auto; }

.newsletter__mark {
  width: 38px;
  height: 44px;
  color: rgba(255,255,255,0.6);
  margin: 0 auto var(--space-sm);
}

.newsletter__inner h2 {
  color: var(--color-white);
  font-size: var(--fs-h3);
  margin-bottom: var(--space-2xs);
}

.newsletter__inner > p:first-of-type {
  margin-bottom: var(--space-md);
  color: rgba(255,255,255,0.78);
  font-size: var(--fs-small);
}

.newsletter__form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.newsletter__form input {
  width: 100%;
  max-width: 320px;
  padding: 0.85rem 1.2rem;
  border: 1px solid rgba(255,255,255,0.3);
  background-color: transparent;
  color: var(--color-white);
  border-radius: var(--radius-md);
  text-align: center;
  transition: border-color var(--dur-fast) var(--ease-out);
}
.newsletter__form input::placeholder { color: rgba(255,255,255,0.55); }
.newsletter__form input:focus { border-color: var(--color-white); }

.newsletter__submit { background: none; }

.newsletter__status {
  margin-top: var(--space-sm);
  font-size: var(--fs-small);
  font-weight: 600;
  min-height: 1.2em;
  color: var(--color-white);
}

/* ---------------------------------------------------------------
   12. FOOTER
   --------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-blue);
  color: rgba(255,255,255,0.82);
  padding: var(--space-2xl) var(--container-pad) var(--space-md);
}

.site-footer__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-white);
}

.footer-brand__mark { width: 56px; height: 68px; }

.footer-brand__since {
  font-family: var(--font-display);
  font-size: var(--fs-caption);
  text-align: center;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.4;
}

.site-footer__columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-col a {
  font-size: var(--fs-small);
  letter-spacing: 0.02em;
  transition: color var(--dur-fast) var(--ease-out);
}
.footer-col a:hover { color: var(--color-white); }

.footer-social-list {
  flex-direction: row !important;
  gap: var(--space-sm) !important;
  margin-top: var(--space-md);
}

.site-footer__bottom {
  max-width: var(--container-max);
  margin: var(--space-lg) auto 0;
  padding-top: var(--space-md);
  text-align: center;
  font-size: var(--fs-caption);
  border-top: 1px solid rgba(255,255,255,0.18);
}

/* ---------------------------------------------------------------
   13. ANIMATIONS
   --------------------------------------------------------------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ---------------------------------------------------------------
   14. MEDIA QUERIES
   --------------------------------------------------------------- */

/* Laptop */
@media (max-width: 1080px) {
  .heritage__row { gap: var(--space-md); }
}

/* Tablet */
@media (max-width: 900px) {
  .hero__content { grid-template-columns: 1fr; gap: var(--space-lg); text-align: left; }
  .hero__headline { text-align: left; }

  .design__content { grid-template-columns: 1fr; gap: var(--space-md); }
  .design__headline { text-align: left; }

  .heritage__row { grid-template-columns: 1fr; gap: var(--space-lg); }
  .heritage__item--2, .heritage__item--3 { margin-top: 0; }

  .site-footer__inner { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .site-footer__columns { grid-template-columns: 1fr 1fr; width: 100%; text-align: left; }
}

/* Mobile landscape */
@media (max-width: 720px) {
  :root {
    --header-h: 72px;
    --header-h-scrolled: 60px;
  }

  .hero { min-height: 88vh; }
  .hero__content { padding-bottom: var(--space-xl); }

  .design__media { height: 78vh; }
}

/* Mobile portrait */
@media (max-width: 480px) {
  .site-footer__columns { grid-template-columns: 1fr; gap: var(--space-md); }
  .heritage { padding-top: var(--space-xl); }
  .social__outro-row { flex-direction: column; align-items: flex-start; gap: var(--space-md); }
}