/* ═══════════════════════════════════════════════════════════════
   VOLTLINE — Editorial Design System
   Structure: Tokens → Reset → Typography → Layout → Components
   ═══════════════════════════════════════════════════════════════ */

/* ── DESIGN TOKENS ─────────────────────────────────────────── */
:root {
  /* Color */
  --ink:         #0A0A0A;
  --parchment:   #F2EDE4;
  --white:       #FFFFFF;
  --surface:     #1A1A1A;
  --gold:        #C8A96E;
  --warm-grey:   #6B6B6B;
  --light-rule:  #E4DDD3;
  --dark-rule:   #2A2A2A;

  /* Type families */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;
  --font-mono:    'DM Mono', 'Courier New', monospace;

  /* Type scale */
  --text-xs:   0.6875rem;   /* 11px */
  --text-sm:   0.8125rem;   /* 13px */
  --text-base: 1rem;        /* 16px */
  --text-lg:   1.125rem;    /* 18px */
  --text-xl:   1.375rem;    /* 22px */
  --text-2xl:  1.75rem;     /* 28px */
  --text-3xl:  2.25rem;     /* 36px */
  --text-4xl:  3rem;        /* 48px */
  --text-5xl:  4rem;        /* 64px */
  --text-6xl:  5.5rem;      /* 88px */
  --text-hero: clamp(3.5rem, 8vw, 7rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --max-content: 1280px;
  --max-prose:   740px;
  --header-h:    64px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration: 300ms;
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul, ol {
  list-style: none;
}

/* ── SITE HEADER ────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--dark-rule);
}

.header-inner {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 var(--space-8);
  height: 100%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-8);
}

/* Nav links shared */
.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-right {
  justify-content: flex-end;
}

.nav-left a,
.nav-right a {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(242, 237, 228, 0.65);
  transition: color var(--duration) var(--ease-out);
  white-space: nowrap;
}

.nav-left a:hover,
.nav-right a:hover {
  color: var(--parchment);
}

/* Wordmark */
.site-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-decoration: none;
}

.logo-mark {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--parchment);
  line-height: 1;
}

.logo-sub {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  line-height: 1;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  color: var(--parchment);
}

.mobile-menu-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--duration) var(--ease-out), opacity var(--duration);
}

/* Mobile nav overlay */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--ink);
  flex-direction: column;
  padding: var(--space-12) var(--space-8);
  gap: var(--space-6);
  z-index: 99;
  overflow-y: auto;
}

.mobile-nav.is-open {
  display: flex;
}

.mobile-nav a {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  color: var(--parchment);
  border-bottom: 1px solid var(--dark-rule);
  padding-bottom: var(--space-6);
}

/* ── HERO SECTION ───────────────────────────────────────────── */
.hero {
  position: relative;
  height: 100svh;
  min-height: 600px;
  display: flex;
  align-items: flex-end;
  background: var(--ink);
  overflow: hidden;
}

/* Signature element: the vertical spine / issue ticker */
.issue-spine {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--dark-rule);
  z-index: 3;
  background: rgba(10,10,10,0.5);
}

.spine-text {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  white-space: nowrap;
  opacity: 0.8;
}

/* Hero image */
.hero-image-wrap {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  transition: transform 8s ease-out;
}

.hero:hover .hero-image {
  transform: scale(1.02);
}

.hero-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10, 10, 10, 0.96) 0%,
    rgba(10, 10, 10, 0.55) 45%,
    rgba(10, 10, 10, 0.2) 70%,
    rgba(10, 10, 10, 0.3) 100%
  );
}

/* Hero content */
.hero-content {
  position: relative;
  z-index: 4;
  padding: 0 var(--space-16) var(--space-16) calc(32px + var(--space-16));
  max-width: 900px;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.eyebrow-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
}

.eyebrow-label--dark {
  color: var(--warm-grey);
}

.hero-divider {
  color: var(--warm-grey);
  font-family: var(--font-mono);
}

.hero-headline {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 700;
  line-height: 0.95;
  color: var(--parchment);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
}

.hero-headline em {
  font-style: italic;
  color: var(--parchment);
  opacity: 0.82;
}

.hero-dek {
  font-family: var(--font-body);
  font-size: var(--text-xl);
  font-weight: 300;
  line-height: 1.5;
  color: rgba(242, 237, 228, 0.75);
  max-width: 560px;
  margin-bottom: var(--space-8);
}

.hero-byline {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.byline-name {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--parchment);
}

.byline-sep {
  color: var(--warm-grey);
}

.byline-date,
.byline-read {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--warm-grey);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--parchment);
  border: 1px solid rgba(242, 237, 228, 0.4);
  padding: var(--space-3) var(--space-6);
  transition: border-color var(--duration) var(--ease-out),
              background var(--duration) var(--ease-out),
              color var(--duration) var(--ease-out);
}

.hero-cta:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* ── SECTION RULE (TRANSITION DEVICE) ───────────────────────── */
.section-rule {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-8) var(--space-16);
  background: var(--white);
  border-top: 3px solid var(--ink);
}

.section-rule::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--light-rule);
}

.section-rule-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--warm-grey);
  white-space: nowrap;
}

/* ── ARTICLE GRID ────────────────────────────────────────────── */
.main-grid-section {
  background: var(--white);
  padding: 0 var(--space-16) var(--space-20);
}

.article-grid {
  max-width: var(--max-content);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-template-rows: auto;
  gap: var(--space-8);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--light-rule);
}

/* Cards: large spans 7 cols */
.card--large {
  grid-column: span 7;
}

/* Standard cards span 5 for row 1, or 5 in row 2 */
.card--standard:nth-child(2) { grid-column: span 5; }
.card--standard:nth-child(3) { grid-column: span 4; }
.card--standard:nth-child(4) { grid-column: span 4; }

/* Text-only opinion/news */
.card--text-only:nth-child(5) { grid-column: span 4; }
.card--text-only:nth-child(6) { grid-column: span 4; }

/* ── CARD COMPONENT ─────────────────────────────────────────── */
.card {
  display: flex;
  flex-direction: column;
}

.card-image-link {
  display: block;
  margin-bottom: var(--space-4);
}

.card-image-wrap {
  position: relative;
  overflow: hidden;
  background: var(--ink);
}

.card--large .card-image-wrap {
  aspect-ratio: 16 / 10;
}

.card--standard .card-image-wrap {
  aspect-ratio: 3 / 2;
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms var(--ease-out),
              filter 600ms var(--ease-out);
  filter: brightness(0.92);
}

.card-image-wrap:hover .card-image {
  transform: scale(1.04);
  filter: brightness(1);
}

/* Tag badge on image */
.card-tag {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--parchment);
  background: rgba(10, 10, 10, 0.75);
  padding: 2px var(--space-2);
  backdrop-filter: blur(4px);
}

.card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.card-section {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

.card-date {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--warm-grey);
}

.card-headline {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-3);
}

.card--large .card-headline {
  font-size: var(--text-3xl);
}

.card--standard .card-headline {
  font-size: var(--text-xl);
}

.card--text-only .card-headline {
  font-size: var(--text-xl);
}

.card-headline a {
  transition: color var(--duration);
}

.card-headline a:hover {
  color: var(--warm-grey);
}

.card-excerpt {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--warm-grey);
  margin-bottom: var(--space-4);
}

.card--text-only .card-excerpt {
  border-top: 1px solid var(--light-rule);
  padding-top: var(--space-4);
}

.card--text-only {
  border-top: 3px solid var(--ink);
  padding-top: var(--space-4);
}

.card-byline {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--warm-grey);
}

/* ── PHOTOGRAPHY PROMO STRIP ─────────────────────────────────── */
.photo-promo {
  max-width: var(--max-content);
  margin: var(--space-16) auto 0;
  background: var(--ink);
  overflow: hidden;
}

.photo-promo-inner {
  display: grid;
  grid-template-columns: 1fr 360px;
}

.photo-promo-strip {
  display: flex;
  overflow: hidden;
}

.photo-promo-strip img {
  flex: 1;
  min-width: 0;
  height: 320px;
  object-fit: cover;
  filter: brightness(0.7) grayscale(0.3);
  transition: filter 600ms var(--ease-out);
}

.photo-promo-strip img:hover {
  filter: brightness(1) grayscale(0);
}

.photo-promo-text {
  padding: var(--space-10) var(--space-8);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-4);
  background: var(--surface);
}

.photo-promo-headline {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--parchment);
  line-height: 1;
}

.photo-promo-body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 300;
  color: rgba(242, 237, 228, 0.6);
  line-height: 1.6;
}

.btn--outline {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--parchment);
  border: 1px solid rgba(242, 237, 228, 0.35);
  padding: var(--space-3) var(--space-6);
  align-self: flex-start;
  transition: border-color var(--duration) var(--ease-out),
              color var(--duration) var(--ease-out);
}

.btn--outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* ── SITE FOOTER ─────────────────────────────────────────────── */
.site-footer {
  background: var(--ink);
  border-top: 1px solid var(--dark-rule);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: var(--space-20);
}

.footer-inner {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 var(--space-16);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-20);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--dark-rule);
  margin-bottom: var(--space-8);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--parchment);
  margin-bottom: var(--space-4);
}

.footer-tagline {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 300;
  color: var(--warm-grey);
  line-height: 1.7;
}

.footer-nav {
  display: flex;
  gap: var(--space-12);
}

.footer-nav-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-nav-heading {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--warm-grey);
  margin-bottom: var(--space-2);
}

.footer-nav-col a {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: rgba(242, 237, 228, 0.5);
  transition: color var(--duration);
}

.footer-nav-col a:hover {
  color: var(--parchment);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-copy {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: rgba(242, 237, 228, 0.3);
}

.footer-mono {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.15em;
  color: var(--gold);
  opacity: 0.6;
}

/* ── RESPONSIVE ──────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .header-inner {
    padding: 0 var(--space-6);
  }

  .hero-content {
    padding: 0 var(--space-8) var(--space-12) calc(32px + var(--space-8));
  }

  .main-grid-section {
    padding: 0 var(--space-8) var(--space-16);
  }

  .section-rule {
    padding: var(--space-6) var(--space-8);
  }

  .card--large { grid-column: span 12; }
  .card--standard:nth-child(2) { grid-column: span 6; }
  .card--standard:nth-child(3) { grid-column: span 6; }
  .card--standard:nth-child(4) { grid-column: span 6; }
  .card--text-only:nth-child(5) { grid-column: span 6; }
  .card--text-only:nth-child(6) { grid-column: span 6; }

  .photo-promo-inner {
    grid-template-columns: 1fr;
  }

  .photo-promo-strip {
    height: 220px;
  }

  .photo-promo-strip img {
    height: 220px;
  }

  .footer-inner {
    padding: 0 var(--space-8);
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
}

@media (max-width: 768px) {
  :root {
    --header-h: 56px;
  }

  .nav-left,
  .nav-right {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .header-inner {
    grid-template-columns: auto 1fr;
  }

  .site-logo {
    grid-column: 1;
  }

  .mobile-menu-toggle {
    grid-column: 2;
    justify-self: end;
  }

  .issue-spine {
    display: none;
  }

  .hero-content {
    padding: 0 var(--space-6) var(--space-10) var(--space-6);
  }

  .hero-headline {
    font-size: clamp(2.5rem, 10vw, 4rem);
  }

  .hero-dek {
    font-size: var(--text-lg);
  }

  .article-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .card--large,
  .card--standard:nth-child(2),
  .card--standard:nth-child(3),
  .card--standard:nth-child(4),
  .card--text-only:nth-child(5),
  .card--text-only:nth-child(6) {
    grid-column: span 1;
  }

  .main-grid-section {
    padding: 0 var(--space-6) var(--space-12);
  }

  .section-rule {
    padding: var(--space-5) var(--space-6);
  }

  .photo-promo-strip img {
    height: 180px;
  }

  .footer-nav {
    flex-wrap: wrap;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
}

/* ── ACCESSIBILITY ───────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

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