/* ==========================================================================
   ICELANDIKA Heritage Vodka — Anno 1933
   Elevated editorial design system
   Root-relative assets → icelandika.com / icelandika.is
   ========================================================================== */

@font-face {
  font-family: "Installer";
  src: url("/x_fonts/installer.woff2") format("woff2"),
       url("/x_fonts/installer.woff") format("woff"),
       url("/x_fonts/installer.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --font-display: "Installer", system-ui, -apple-system, sans-serif;
  --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --fs-xs: clamp(0.6875rem, 0.65rem + 0.2vw, 0.75rem);
  --fs-sm: clamp(0.8125rem, 0.75rem + 0.25vw, 0.875rem);
  --fs-base: clamp(0.9375rem, 0.9rem + 0.2vw, 1rem);
  --fs-md: clamp(1.0625rem, 1rem + 0.3vw, 1.1875rem);
  --fs-lg: clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem);
  --fs-xl: clamp(1.75rem, 1.4rem + 1.4vw, 2.75rem);
  --fs-2xl: clamp(2.5rem, 1.9rem + 2.5vw, 4.25rem);
  --fs-3xl: clamp(3rem, 2.2rem + 3.5vw, 5.5rem);
  --fs-hero: clamp(3.5rem, 2.6rem + 4vw, 6.5rem);

  --lh-tight: 1.05;
  --lh-snug: 1.25;
  --lh-normal: 1.5;
  --lh-relaxed: 1.65;

  --ls-tight: -0.03em;
  --ls-normal: 0;
  --ls-wide: 0.08em;
  --ls-wider: 0.16em;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;
  --space-9: 6.5rem;
  --space-10: 9rem;
  --space-11: 12rem;

  --max-width: 78rem;
  --max-width-narrow: 38rem;
  --header-h: 5rem;
  --radius-sm: 2px;
  --radius: 4px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 160ms;
  --duration: 300ms;
  --duration-slow: 500ms;
}

[data-theme="dark"] {
  --bg: #0a0a0a;
  --bg-elevated: #111;
  --bg-overlay: rgba(10, 10, 10, 0.9);
  --bg-panel: #0f0f0f;
  --text: #f5f4f1;
  --text-muted: #8a8880;
  --text-faint: #5c5a55;
  --border: #1f1f1f;
  --border-strong: #2e2e2e;
  --accent: #c4a484;
  --accent-soft: rgba(196, 164, 132, 0.12);
  --focus: #c4a484;
  --shadow: 0 28px 70px rgba(0, 0, 0, 0.55);
  --bottle-shadow: 0 32px 80px rgba(0, 0, 0, 0.5);
  --logo-filter: none;
}

[data-theme="light"] {
  --bg: #f4f2ed;
  --bg-elevated: #faf9f6;
  --bg-overlay: rgba(244, 242, 237, 0.92);
  --bg-panel: #ffffff;
  --text: #141414;
  --text-muted: #6b6963;
  --text-faint: #9a9790;
  --border: #e4e1da;
  --border-strong: #d0cdc5;
  --accent: #9a7b5c;
  --accent-soft: rgba(154, 123, 92, 0.1);
  --focus: #9a7b5c;
  --shadow: 0 28px 70px rgba(0, 0, 0, 0.07);
  --bottle-shadow: 0 32px 80px rgba(0, 0, 0, 0.1);
  --logo-filter: none;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--duration) var(--ease-out), color var(--duration) var(--ease-out);
}

img { max-width: 100%; height: auto; display: block; }
button, input { font: inherit; color: inherit; border: none; background: none; cursor: pointer; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* Typography helpers */
.display { font-family: var(--font-display); }
.eyebrow {
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Two-tone headline system */
.headline {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  font-weight: 400;
}
.headline--hero { font-size: var(--fs-hero); }
.headline .faint { color: var(--text-faint); }

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

/* Age Gate */
.age-gate {
  position: fixed; inset: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg);
  transition: opacity var(--duration-slow) var(--ease-out), visibility var(--duration-slow) var(--ease-out);
}
.age-gate[hidden] { opacity: 0; visibility: hidden; pointer-events: none; }

.age-gate__inner {
  width: 100%; max-width: 22rem; padding: var(--space-6); text-align: center;
}
.age-gate__brand {
  margin: 0 auto var(--space-6);
}
.age-gate__name {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 1.5rem + 1vw, 2.25rem);
  font-weight: 400;
  letter-spacing: var(--ls-tight);
  line-height: 1.1;
  color: var(--text);
  margin: 0;
}
.age-gate__sub {
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: var(--space-2);
}
.age-gate__question {
  font-size: var(--fs-md); margin-bottom: var(--space-6); line-height: var(--lh-snug);
}
.age-gate__actions {
  display: flex; flex-direction: column; gap: var(--space-3); margin-bottom: var(--space-6);
}
.age-gate__btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 2.875rem; padding-inline: var(--space-5);
  font-size: var(--fs-xs); letter-spacing: var(--ls-wide); text-transform: uppercase;
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  transition: background-color var(--duration-fast), border-color var(--duration-fast), color var(--duration-fast);
}
.age-gate__btn--primary {
  background: var(--text); color: var(--bg); border-color: var(--text);
}
.age-gate__btn--primary:hover,
.age-gate__btn--primary:focus-visible {
  background: transparent; color: var(--text);
}
.age-gate__btn--secondary:hover,
.age-gate__btn--secondary:focus-visible {
  border-color: var(--text); color: var(--text);
}
.age-gate__legal {
  font-size: var(--fs-xs); color: var(--text-faint); line-height: var(--lh-relaxed);
}

/* Header */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--header-h);
  display: flex; align-items: center;
  background: var(--bg-overlay);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration), opacity var(--duration) var(--ease-out), transform var(--duration) var(--ease-out);
}
.site-header.is-scrolled { border-bottom-color: var(--border); }
.site-header.is-hidden {
  opacity: 0;
  transform: translateY(-100%);
  pointer-events: none;
}

.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; max-width: var(--max-width); margin-inline: auto; padding-inline: var(--space-5);
}

.site-logo img {
  height: 44px; width: auto;
  transition: opacity var(--duration-fast);
}
[data-theme="dark"] .site-logo .logo-black { display: none; }
[data-theme="light"] .site-logo .logo-white { display: none; }

.nav-controls { display: flex; align-items: center; gap: var(--space-3); }

.theme-toggle {
  width: 2.25rem; height: 2.25rem;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%; color: var(--text-muted);
  transition: color var(--duration-fast), background-color var(--duration-fast);
}
.theme-toggle:hover, .theme-toggle:focus-visible {
  color: var(--text); background: var(--accent-soft);
}
.theme-toggle svg { width: 1.05rem; height: 1.05rem; }
.theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: block; }

.nav-menu-btn {
  width: 2.25rem; height: 2.25rem;
  display: flex; align-items: center; justify-content: center; color: var(--text-muted);
}
.nav-menu-btn:hover, .nav-menu-btn:focus-visible { color: var(--text); }
.nav-menu-btn span {
  display: block; width: 1.05rem; height: 1px; background: currentColor; position: relative;
}
.nav-menu-btn span::before, .nav-menu-btn span::after {
  content: ""; position: absolute; left: 0; width: 100%; height: 1px; background: currentColor;
  transition: transform var(--duration) var(--ease-out);
}
.nav-menu-btn span::before { top: -4.5px; }
.nav-menu-btn span::after { top: 4.5px; }
.nav-menu-btn[aria-expanded="true"] span { background: transparent; }
.nav-menu-btn[aria-expanded="true"] span::before { transform: translateY(4.5px) rotate(45deg); }
.nav-menu-btn[aria-expanded="true"] span::after { transform: translateY(-4.5px) rotate(-45deg); }

.nav-panel {
  position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
  background: var(--bg); z-index: 90;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--space-6);
  opacity: 0; visibility: hidden;
  transition: opacity var(--duration), visibility var(--duration);
}
.nav-panel.is-open { opacity: 1; visibility: visible; }
.nav-panel a {
  font-size: var(--fs-lg); letter-spacing: var(--ls-tight); color: var(--text-muted);
  transition: color var(--duration-fast);
}
.nav-panel a:hover, .nav-panel a:focus-visible { color: var(--text); }

@media (min-width: 800px) {
  .nav-menu-btn { display: none; }
  .nav-desktop { display: flex; align-items: center; gap: var(--space-6); }
  .nav-desktop a {
    font-size: var(--fs-xs); letter-spacing: var(--ls-wider);
    text-transform: uppercase; color: var(--text-muted); transition: color var(--duration-fast);
  }
  .nav-desktop a:hover, .nav-desktop a:focus-visible { color: var(--text); }
  .nav-panel { display: none; }
}
@media (max-width: 799px) { .nav-desktop { display: none; } }

/* Hero */
.hero {
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding-top: calc(var(--header-h) + var(--space-7));
  padding-bottom: var(--space-9);
}

.hero__inner {
  display: grid; grid-template-columns: 1fr; gap: var(--space-8);
  align-items: center;
  max-width: var(--max-width); margin-inline: auto; padding-inline: var(--space-5);
}

.hero__content { text-align: center; order: 2; }
.hero__eyebrow { margin-bottom: var(--space-4); }
.hero__title { margin-bottom: var(--space-4); }
.hero__tag {
  font-size: var(--fs-sm); color: var(--text-muted); line-height: var(--lh-relaxed);
  max-width: 20rem; margin-inline: auto; margin-bottom: var(--space-7);
}
.hero__cta {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--fs-xs); letter-spacing: var(--ls-wider); text-transform: uppercase;
  color: var(--text-muted); border-bottom: 1px solid transparent; padding-bottom: 2px;
  transition: color var(--duration-fast), border-color var(--duration-fast);
}
.hero__cta:hover, .hero__cta:focus-visible {
  color: var(--text); border-bottom-color: var(--text);
}

.hero__visual {
  order: 1; display: flex; justify-content: center; align-items: center;
  position: relative;
}
.hero__bottle {
  width: min(280px, 68vw);
  height: auto;
  filter: drop-shadow(var(--bottle-shadow));
  position: relative; z-index: 2;
}

/* Subtle circular geometry behind bottle */
.hero__ring {
  position: absolute;
  border: 1px solid var(--border);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
}
.hero__ring--1 {
  width: min(340px, 82vw); aspect-ratio: 1;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
}
.hero__ring--2 {
  width: min(420px, 98vw); aspect-ratio: 1;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  opacity: 0.5;
}

@media (min-width: 920px) {
  .hero__inner { grid-template-columns: 1fr 1.1fr; gap: var(--space-10); }
  .hero__content { text-align: left; order: 1; }
  .hero__visual { order: 2; }
  .hero__tag { margin-inline: 0; }
  .hero__bottle { width: min(340px, 36vw); }
  .hero__ring--1 { width: min(400px, 42vw); }
  .hero__ring--2 { width: min(500px, 52vw); }
}

/* Sections */
.section {
  padding-block: var(--space-10);
}
.section--tight { padding-block: var(--space-8); }
.section--dark {
  background: #0a0a0a;
  color: #f5f4f1;
}
[data-theme="light"] .section--dark {
  background: #141414;
  color: #f5f4f1;
}
.section--dark .eyebrow { color: #8a8880; }
.section--dark .headline .faint { color: #5c5a55; }
.section--dark .text-muted { color: #8a8880; }

.section__header {
  max-width: var(--max-width-narrow);
  margin-inline: auto;
  text-align: center;
  margin-bottom: var(--space-8);
  padding-inline: var(--space-5);
}
.section__header--left {
  text-align: left;
  margin-inline: 0;
  max-width: none;
}

.section__eyebrow { margin-bottom: var(--space-3); }
.section__title { margin-bottom: var(--space-4); }
.section__lead {
  font-size: var(--fs-md);
  color: var(--text-muted);
  line-height: var(--lh-relaxed);
  max-width: 32rem;
  margin-inline: auto;
}
.section__header--left .section__lead { margin-inline: 0; }

/* Feature grid */
.feature-grid {
  display: grid; grid-template-columns: 1fr; gap: var(--space-7);
  max-width: var(--max-width); margin-inline: auto; padding-inline: var(--space-5);
}
.feature {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.feature h3 {
  font-family: var(--font-display);
  font-size: var(--fs-lg); margin-bottom: var(--space-3); letter-spacing: var(--ls-tight);
  min-height: 1.4em;
}
.feature p {
  font-size: var(--fs-sm); color: var(--text-muted); line-height: var(--lh-relaxed);
  max-width: 18rem; margin-inline: auto;
}
@media (min-width: 768px) {
  .feature-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
  .feature {
    text-align: left;
    align-items: flex-start;
  }
  .feature p { margin-inline: 0; max-width: none; }
}

/* Product showcase */
.showcase {
  position: relative;
  max-width: var(--max-width);
  margin-inline: auto;
  padding: var(--space-8) var(--space-5);
  display: flex; justify-content: center; align-items: center;
}
.showcase__bottles {
  display: flex; justify-content: center; align-items: center;
  position: relative; z-index: 2;
}
.showcase__bottle {
  width: min(220px, 42vw);
  height: auto;
  filter: drop-shadow(var(--bottle-shadow));
  transition: transform var(--duration) var(--ease-out);
}
.showcase__bottle--single {
  width: min(280px, 48vw);
}
.showcase__ring {
  position: absolute;
  border: 1px solid var(--border);
  border-radius: 50%;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  pointer-events: none; z-index: 1;
}
.showcase__ring--1 { width: min(380px, 78vw); aspect-ratio: 1; }
.showcase__ring--2 { width: min(480px, 94vw); aspect-ratio: 1; opacity: 0.55; }

@media (min-width: 700px) {
  .showcase__bottle { width: min(260px, 28vw); }
  .showcase__bottle--single { width: min(320px, 32vw); }
  .showcase__ring--1 { width: min(520px, 58vw); }
  .showcase__ring--2 { width: min(640px, 70vw); }
}

/* Specs */
.specs {
  max-width: 26rem; margin-inline: auto; padding-inline: var(--space-5);
}
.specs__row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding-block: var(--space-3); border-bottom: 1px solid var(--border);
  font-size: var(--fs-sm);
}
.specs__row:last-child { border-bottom: none; }
.specs__label {
  color: var(--text-muted); letter-spacing: var(--ls-wide);
  text-transform: uppercase; font-size: var(--fs-xs);
}
.specs__value { font-weight: 500; text-align: right; }
.specs__disclaimer {
  max-width: 26rem;
  margin: var(--space-4) auto 0;
  padding-inline: var(--space-5);
  font-size: var(--fs-xs);
  color: var(--text-faint);
  text-align: center;
  line-height: var(--lh-relaxed);
}

/* Contact */
.contact { text-align: center; }
.contact a {
  color: var(--text); border-bottom: 1px solid var(--border-strong);
  transition: border-color var(--duration-fast);
}
.contact a:hover, .contact a:focus-visible { border-bottom-color: var(--text); }

/* Socials */
.socials {
  display: flex; justify-content: center; align-items: center;
  gap: 2.25rem; margin-bottom: var(--space-6);
}
.socials a { line-height: 0; border: none !important; outline: none; }
.social-icon {
  width: 20px; height: 20px;
  fill: var(--text);
  opacity: 0.4;
  transition: opacity 0.28s var(--ease-out), transform 0.28s var(--ease-out), fill 0.28s var(--ease-out);
}
.socials a:hover .social-icon,
.socials a:focus-visible .social-icon {
  opacity: 1;
  fill: var(--accent);
  transform: scale(1.1);
}

/* Footer */
.site-footer {
  padding-block: var(--space-8);
  border-top: 1px solid var(--border);
}
.site-footer__inner {
  max-width: var(--max-width); margin-inline: auto; padding-inline: var(--space-5);
  display: flex; flex-direction: column; align-items: center; gap: var(--space-5); text-align: center;
}
.site-footer__logo img { height: 40px; width: auto; }
[data-theme="dark"] .site-footer__logo .logo-black { display: none; }
[data-theme="light"] .site-footer__logo .logo-white { display: none; }

.site-footer__meta {
  font-size: var(--fs-xs); color: var(--text-faint); line-height: var(--lh-relaxed);
}
.site-footer__links {
  display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-4);
  font-size: var(--fs-xs); letter-spacing: var(--ls-wide); text-transform: uppercase;
}
.site-footer__links a,
.site-footer__links button {
  color: var(--text-muted); transition: color var(--duration-fast);
}
.site-footer__links a:hover,
.site-footer__links a:focus-visible,
.site-footer__links button:hover,
.site-footer__links button:focus-visible { color: var(--text); }

/* Popup */
.popup-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.55);
  opacity: 0; visibility: hidden;
  transition: opacity var(--duration), visibility var(--duration);
}
.popup-overlay.is-open { opacity: 1; visibility: visible; }

.popup {
  position: fixed; z-index: 210;
  top: 50%; left: 50%;
  transform: translate(-50%, -48%) scale(0.98);
  width: min(92vw, 30rem); max-height: min(84vh, 38rem);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  opacity: 0; visibility: hidden;
  transition: opacity var(--duration), visibility var(--duration), transform var(--duration);
  display: flex; flex-direction: column; overflow: hidden;
}
.popup.is-open {
  opacity: 1; visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.popup__header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-5) var(--space-5) var(--space-4);
  border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.popup__title {
  font-family: var(--font-display); font-size: var(--fs-lg); letter-spacing: var(--ls-tight);
}
.popup__close {
  width: 2.125rem; height: 2.125rem;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); border-radius: 50%;
  transition: color var(--duration-fast), background var(--duration-fast);
}
.popup__close:hover, .popup__close:focus-visible {
  color: var(--text); background: var(--accent-soft);
}
.popup__close svg { width: 1.05rem; height: 1.05rem; }

.popup__body {
  padding: var(--space-5); overflow-y: auto; overscroll-behavior: contain;
  font-size: var(--fs-sm); line-height: var(--lh-relaxed); color: var(--text-muted);
}
.popup__body p + p { margin-top: var(--space-4); }
.popup__body h3 {
  font-family: var(--font-display); font-size: var(--fs-md);
  color: var(--text); margin-bottom: var(--space-2); margin-top: var(--space-5);
  letter-spacing: var(--ls-tight);
}
.popup__body h3:first-child { margin-top: 0; }

@media (max-width: 480px) {
  .popup {
    width: 100%; max-height: 100%; top: 0; left: 0; right: 0; bottom: 0;
    transform: translateY(100%); border-radius: 0; border: none;
  }
  .popup.is-open { transform: translateY(0); }
}

body.is-locked { overflow: hidden; }

.btn-text {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--fs-xs); letter-spacing: var(--ls-wider); text-transform: uppercase;
  color: var(--text-muted); border-bottom: 1px solid transparent; padding-bottom: 2px;
  transition: color var(--duration-fast), border-color var(--duration-fast);
}
.btn-text:hover, .btn-text:focus-visible {
  color: var(--text); border-bottom-color: var(--text);
}

:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
button:focus:not(:focus-visible) { outline: none; }