/* ============================================================
   Self-hosted webfonts. Source Sans 3 and Source Serif 4,
   SIL Open Font License 1.1. Served from this repository so that
   no visitor's IP address is sent to a third party before they
   have consented to anything.
   ============================================================ */
@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/source-sans-3-latin-400-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../assets/fonts/source-sans-3-latin-600-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../assets/fonts/source-sans-3-latin-700-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 900;
  font-display: swap;
  src: url("../assets/fonts/source-sans-3-latin-900-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: "Source Sans 3";
  font-style: italic;
  font-weight: 700;
  font-display: swap;
  src: url("../assets/fonts/source-sans-3-latin-700-italic.woff2") format("woff2");
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/source-serif-4-latin-400-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../assets/fonts/source-serif-4-latin-600-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: "Source Serif 4";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/source-serif-4-latin-400-italic.woff2") format("woff2");
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/source-sans-3-latin-ext-400-normal.woff2") format("woff2");
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../assets/fonts/source-sans-3-latin-ext-600-normal.woff2") format("woff2");
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../assets/fonts/source-sans-3-latin-ext-700-normal.woff2") format("woff2");
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 900;
  font-display: swap;
  src: url("../assets/fonts/source-sans-3-latin-ext-900-normal.woff2") format("woff2");
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: "Source Sans 3";
  font-style: italic;
  font-weight: 700;
  font-display: swap;
  src: url("../assets/fonts/source-sans-3-latin-ext-700-italic.woff2") format("woff2");
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/source-serif-4-latin-ext-400-normal.woff2") format("woff2");
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../assets/fonts/source-serif-4-latin-ext-600-normal.woff2") format("woff2");
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: "Source Serif 4";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/source-serif-4-latin-ext-400-italic.woff2") format("woff2");
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}

/* ============================================================
   vISIon — The Magazine of the International Statistical Institute
   Stylesheet. Brand palette and type mirror the print edition:
   Source Sans (display) + a Libertine-style serif (body).
   ============================================================ */

:root {
  --isi-blue:   #0000AF;   /* primary brand blue (print: isiDarkBlue) */
  --isi-navy:   #05055E;   /* deep navy for footer / dark sections    */
  --isi-azure:  #28CBFF;   /* accents, tagline (print: isiAzure)      */
  --isi-orange: #E65738;   /* editorial accent (print: isiOrange)     */
  --isi-flame:  #FF6E1E;   /* cover badge orange                      */
  --isi-turq:   #7FEBD7;   /* cover band turquoise                    */
  --ink:        #17171f;
  --ink-soft:   #4a4f63;
  --paper:      #ffffff;
  --tint:       #F2F6FE;
  --line:       #dfe5f2;

  --sans:  "Source Sans 3", "Source Sans Pro", system-ui, sans-serif;
  --serif: "Source Serif 4", "Libertinus Serif", Georgia, serif;

  --maxw: 1120px;
  --radius: 8px;
  --shadow: 0 14px 40px rgba(5, 5, 94, 0.14);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  font-family: var(--sans);
  color: var(--isi-blue);
  line-height: 1.15;
  margin: 0 0 0.6em;
}

p { margin: 0 0 1em; }

a { color: var(--isi-blue); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--isi-orange); }

:focus-visible {
  outline: 3px solid var(--isi-azure);
  outline-offset: 2px;
  border-radius: 2px;
}

::selection { background: var(--isi-azure); color: var(--isi-navy); }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 1.4rem; }
.container.narrow { max-width: 780px; }

/* Kicker: small orange caps label, as in the print kickers */
.kicker {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--isi-orange);
  margin-bottom: 0.5rem;
}

/* Section heading: blue sans title with the print's short orange rule */
.section-title {
  font-size: clamp(1.7rem, 3.2vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.01em;
}
.section-title::after {
  content: "";
  display: block;
  width: 64px;
  height: 4px;
  margin-top: 12px;
  background: var(--isi-orange);
}
.section-title.center { text-align: center; }
.section-title.center::after { margin-left: auto; margin-right: auto; }
.section-title.light { color: #fff; }

.section { padding: 4.5rem 0; }
.section-tint { background: var(--tint); }

.lead-serif {
  font-size: 1.2rem;
  line-height: 1.75;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.02em;
  padding: 0.72rem 1.5rem;
  border-radius: 4px;
  border: 2px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}
.btn:active { transform: translateY(1px); }

.btn-orange { background: var(--isi-orange); color: #fff; }
.btn-orange:hover { background: #c8432a; color: #fff; }

.btn-blue { background: var(--isi-blue); color: #fff; }
.btn-blue:hover { background: var(--isi-navy); color: #fff; }

.btn-ghost { border-color: #fff; color: #fff; background: transparent; }
.btn-ghost:hover { background: #fff; color: var(--isi-blue); }

.btn-outline-blue { border-color: var(--isi-blue); color: var(--isi-blue); background: transparent; }
.btn-outline-blue:hover { background: var(--isi-blue); color: #fff; }

.btn-lg { padding: 0.9rem 1.9rem; font-size: 1.08rem; }
.btn-sm { padding: 0.5rem 1.05rem; font-size: 0.92rem; }

.btn-row { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.4rem; }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 66px;
}
/* Brand lockup: ISI mark, vertical rule, vISIon wordmark.
   Proportions taken from the ISI mockup, expressed against --brand-h:
   rule 3.8% of mark height, gaps 29% and 23.6%, wordmark cap-height 68.9%. */
.brand {
  --brand-h: 36px;
  display: flex;
  align-items: center;
  gap: 0;
  text-decoration: none;
}
.brand-logo {
  height: var(--brand-h);
  width: auto;
  padding-right: calc(var(--brand-h) * 0.29);
  border-right: max(2px, calc(var(--brand-h) * 0.038)) solid var(--isi-blue);
  margin-right: calc(var(--brand-h) * 0.236);
}
.brand-name {
  font-family: var(--sans);
  font-weight: 900;
  /* cap-height 0.689 x mark; Source Sans caps are 0.66 em */
  font-size: calc(var(--brand-h) * 0.689 / 0.66);
  line-height: 1;
  color: var(--isi-blue);
  letter-spacing: -0.01em;
  /* optical: seat the cap band on the mark's centre line */
  transform: translateY(calc(var(--brand-h) * 0.028));
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-family: var(--sans);
  font-weight: 600;
}
.site-nav a { text-decoration: none; color: var(--ink); font-size: 1rem; }
.site-nav a:hover { color: var(--isi-orange); }
.site-nav a[aria-current="page"] { color: var(--isi-blue); box-shadow: inset 0 -3px 0 var(--isi-orange); }
.site-nav .nav-cta { color: #fff; box-shadow: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 8px;
  background: none;
  border: 0;
  cursor: pointer;
}
.nav-toggle span { display: block; height: 3px; width: 100%; background: var(--isi-blue); border-radius: 2px; }

/* ---------- Hero (cover-faithful) ---------- */
.hero {
  position: relative;
  color: #fff;
  background:
    linear-gradient(180deg, rgba(4, 4, 74, 0.52) 0%, rgba(4, 4, 74, 0.68) 78%, rgba(4, 4, 74, 0.82) 100%),
    url("../assets/bg.jpg") center / cover no-repeat;
  overflow: hidden;
}
.hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 5.5rem 1.4rem 5rem;
}
/* Scrim: sits above the decorative dots and wave, below the hero text.
   Keeps every string legible without touching the background photograph. */
.hero-inner::before {
  content: "";
  position: absolute;
  inset: -1.5rem -1rem;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(ellipse 70% 60% at 50% 48%,
              rgba(3, 3, 58, 0.80) 0%,
              rgba(3, 3, 58, 0.62) 55%,
              rgba(3, 3, 58, 0) 85%);
}
.hero-dots {
  position: absolute;
  top: 0;
  right: 0;
  width: min(38%, 440px);
  opacity: 0.55;
  z-index: 1;
  pointer-events: none;
}
.hero-wave {
  position: absolute;
  top: 56px;
  left: 50%;
  transform: translateX(-50%);
  width: min(660px, 88%);
  opacity: 0.45;
  z-index: 1;
  pointer-events: none;
}
.hero-badge {
  position: absolute;
  top: 26px;
  right: 30px;
  z-index: 3;
  width: 108px;
  height: 108px;
  border-radius: 50%;
  background: var(--isi-flame);
  color: #fff;
  font-family: var(--sans);
  font-weight: 900;
  font-size: 1.15rem;
  line-height: 1.15;
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}
.hero-tagline {
  font-family: var(--sans);
  font-style: italic;
  font-weight: 700;
  font-size: clamp(1rem, 2vw, 1.25rem);
  letter-spacing: 0.04em;
  color: var(--isi-azure);
  margin-bottom: 0.6rem;
}
.hero-wordmark {
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(4.6rem, 14vw, 10rem);
  letter-spacing: -0.02em;
  line-height: 0.95;
  color: #fff;
  margin: 0 0 1.1rem;
  text-shadow: 0 6px 40px rgba(0, 0, 40, 0.5);
}
.hero-sub {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(1.05rem, 2.4vw, 1.45rem);
  color: var(--isi-flame);
  line-height: 1.3;
  margin-bottom: 1.4rem;
}
.hero-lede {
  font-family: var(--serif);
  font-size: clamp(1.02rem, 1.8vw, 1.18rem);
  max-width: 620px;
  margin: 0 auto 1.6rem;
  color: rgba(255, 255, 255, 0.92);
}
.hero-btns { justify-content: center; margin-top: 0; }

/* Turquoise "in this issue" band, as on the cover */
.hero-strip {
  position: relative;
  z-index: 2;
  background: var(--isi-turq);
  color: var(--isi-blue);
  font-family: var(--sans);
  font-weight: 700;
  font-size: 1.02rem;
  padding: 0.85rem 0;
}
.hero-strip .container {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: center;
  gap: 0.4rem 1rem;
  text-align: center;
}
.hero-strip-label {
  font-style: italic;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ---------- Latest issue ---------- */
.latest-grid {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 3.2rem;
  align-items: start;
  margin-top: 2.4rem;
}
.latest-cover img,
.issue-card-cover img {
  width: 100%;
  height: auto;
  aspect-ratio: 993 / 1404;   /* A4. Pinned here so the cover cannot stretch */
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: var(--shadow);
}
.latest-cover a { display: block; transition: transform 0.2s ease; }
.latest-cover a:hover { transform: translateY(-4px); }
.latest-theme { font-size: 1.7rem; font-weight: 800; margin-bottom: 0.4rem; }
.latest-tagline {
  font-style: italic;
  font-size: 1.15rem;
  color: var(--ink-soft);
  margin-bottom: 1.1rem;
}

/* Highlights list: orange square markers, serif body */
.highlights { list-style: none; padding: 0; margin: 0 0 0.5rem; }
.highlights li {
  position: relative;
  padding-left: 1.3rem;
  margin-bottom: 0.55rem;
}
.highlights li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 9px;
  height: 9px;
  background: var(--isi-orange);
}

/* ---------- Issue archive: horizontal rows ---------- */
.issue-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2.4rem;
  max-width: 900px;
}
.issue-card {
  display: flex;
  gap: 1.8rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.issue-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.issue-card-cover { flex: 0 0 150px; align-self: flex-start; }
.issue-card-cover img { width: 100%; }
.issue-card-body { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.issue-card-body h3 { font-size: 1.35rem; font-weight: 800; margin-bottom: 0.3rem; }
.issue-card-theme { font-style: italic; color: var(--ink-soft); margin-bottom: 0.9rem; }
.issue-card-body .highlights { font-size: 0.98rem; flex: 1; }
.issue-card-body .btn-row { margin-top: 1.1rem; }
.issue-more {
  font-family: var(--sans);
  font-size: 0.95rem;
  color: var(--ink-soft);
  margin: 0.4rem 0 0;
}

/* ---------- "Inside every issue" mini cards ---------- */
.mini-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.4rem;
  margin-top: 2.2rem;
}
.mini-card {
  background: #fff;
  border: 1px solid var(--line);
  border-top: 4px solid var(--isi-azure);
  border-radius: 6px;
  padding: 1.2rem 1.3rem 1rem;
}
.mini-card h3 { font-size: 1.05rem; font-weight: 800; margin-bottom: 0.35rem; }
.mini-card p { font-size: 0.96rem; color: var(--ink-soft); margin: 0; }

/* ---------- Dark band ---------- */
.section-dark {
  position: relative;
  background: linear-gradient(135deg, var(--isi-blue) 0%, var(--isi-navy) 100%);
  color: rgba(255, 255, 255, 0.94);
  overflow: hidden;
}
.section-dark::after {
  content: "";
  position: absolute;
  right: -140px;
  top: -60px;
  width: 560px;
  height: 460px;
  background: url("../assets/wave.png") right top / contain no-repeat;
  opacity: 0.22;
  pointer-events: none;
}
.section-dark .container { position: relative; z-index: 1; }
.section-dark a:not(.btn) { color: var(--isi-azure); }

/* Pull-quote style, echoing the print azure quotes */
.pull {
  border-left: 4px solid var(--isi-orange);
  padding-left: 1.1rem;
  font-style: italic;
  color: var(--isi-azure);
  font-size: 1.25rem;
  margin: 1.6rem 0;
}

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--isi-orange), var(--isi-flame));
  color: #fff;
  padding: 3.2rem 0;
}
.cta-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.6rem;
}
.cta-inner h2 { color: #fff; font-size: 1.9rem; margin-bottom: 0.35rem; }
.cta-inner p { margin: 0; max-width: 560px; font-size: 1.08rem; }

/* ---------- Sub-page hero ---------- */
.page-hero {
  position: relative;
  background:
    linear-gradient(180deg, rgba(4, 4, 74, 0.45), rgba(4, 4, 74, 0.7)),
    url("../assets/bg.jpg") center / cover no-repeat;
  color: #fff;
  padding: 3.6rem 0 3.2rem;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 320px;
  height: 320px;
  background: url("../assets/dots.png") right top / contain no-repeat;
  opacity: 0.85;
  pointer-events: none;
}
.page-hero h1 {
  color: #fff;
  font-size: clamp(2rem, 4.5vw, 2.9rem);
  font-weight: 900;
  margin-bottom: 0.4rem;
}
.page-hero h1::after {
  content: "";
  display: block;
  width: 64px;
  height: 4px;
  margin-top: 14px;
  background: var(--isi-orange);
}
.page-hero p {
  font-size: 1.12rem;
  max-width: 640px;
  color: rgba(255, 255, 255, 0.92);
  margin: 0;
}

/* ---------- Editorial board ---------- */
.leader-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.6rem;
  margin-top: 2.2rem;
}
.leader-card {
  background: #fff;
  border: 1px solid var(--line);
  border-left: 5px solid var(--isi-orange);
  border-radius: 6px;
  padding: 1.4rem 1.5rem;
}
.leader-card h3 { font-size: 1.35rem; margin-bottom: 0.15rem; }
.leader-card .affil { color: var(--ink-soft); margin: 0; }

.editor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1rem 2rem;
  margin-top: 2rem;
}
.editor {
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
}
.editor .name {
  font-family: var(--sans);
  font-weight: 700;
  color: var(--ink);
  margin: 0;
}
.editor .affil { font-size: 0.94rem; color: var(--ink-soft); margin: 0; }

/* ---------- Content pages ---------- */
.prose { max-width: 780px; }
.prose h2 { margin-top: 2.6rem; }
.prose h2:first-child { margin-top: 0; }
.note {
  background: var(--tint);
  border-left: 4px solid var(--isi-azure);
  border-radius: 4px;
  padding: 1rem 1.2rem;
  font-size: 0.98rem;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--isi-navy);
  color: rgba(255, 255, 255, 0.88);
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
  padding: 3.4rem 1.4rem 2.6rem;
}
.footer-wordmark {
  font-family: var(--sans);
  font-weight: 900;
  font-size: 1.9rem;
  color: #fff;
  margin: 0 0 0.2rem;
}
.footer-tag {
  font-family: var(--sans);
  font-style: italic;
  font-weight: 600;
  color: var(--isi-azure);
  margin-bottom: 0.8rem;
}
.footer-text { font-size: 0.98rem; }
.site-footer h4 {
  color: var(--isi-azure);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.9rem;
}
.site-footer a {
  display: block;
  color: rgba(255, 255, 255, 0.88);
  text-decoration: none;
  margin-bottom: 0.55rem;
  font-family: var(--sans);
  font-size: 0.98rem;
}
.site-footer a:hover { color: var(--isi-azure); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: 1.1rem 0;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.65);
  font-family: var(--sans);
}
.footer-bottom p { margin: 0; }

/* ---------- 404 ---------- */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  text-align: center;
}
.error-page h1 { color: #fff; font-size: clamp(3rem, 8vw, 5rem); }

/* ---------- Article index: search and filters ---------- */
.filters {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1.4rem 2rem;
  padding-bottom: 1.6rem;
  border-bottom: 2px solid var(--isi-blue);
}
.search-field { flex: 1 1 320px; }
.search-field label,
.chip-group-label {
  display: block;
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--isi-orange);
  margin-bottom: 0.45rem;
}
.search-field input {
  width: 100%;
  font-family: var(--serif);
  font-size: 1.05rem;
  padding: 0.7rem 0.9rem;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
}
.search-field input:focus { border-color: var(--isi-azure); }
.chip-group { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip {
  font-family: var(--sans);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: #fff;
  color: var(--ink-soft);
  cursor: pointer;
  transition: background 0.14s ease, color 0.14s ease, border-color 0.14s ease;
}
.chip:hover { border-color: var(--isi-azure); color: var(--ink); }
.chip[aria-pressed="true"] {
  background: var(--isi-blue);
  border-color: var(--isi-blue);
  color: #fff;
}
.result-count {
  font-family: var(--sans);
  font-size: 0.95rem;
  color: var(--ink-soft);
  margin: 1.4rem 0 0;
}
.no-results {
  padding: 2.4rem 0;
  font-size: 1.1rem;
  color: var(--ink-soft);
}
.index-issue {
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-soft);
  margin: 0.4rem 0 0;
}
.index-row.is-hidden { display: none; }
.index-row .draft-note {
  font-family: var(--sans);
  font-size: 0.88rem;
  color: var(--isi-orange);
  margin: 0.35rem 0 0;
}
.show-all { margin-top: 1.8rem; }

/* ---------- Article landing pages ---------- */
.authors {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.4rem 1.8rem;
  margin: 0 0 2.4rem;
}
.author { padding: 0.5rem 0; border-bottom: 1px solid var(--line); }
.author .name { font-family: var(--sans); font-weight: 700; color: var(--ink); margin: 0; }
.author .affil { font-size: 0.94rem; color: var(--ink-soft); margin: 0; }

.read-box {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  background: var(--tint);
  border-left: 5px solid var(--isi-orange);
  border-radius: 6px;
  padding: 1.3rem 1.5rem;
  margin: 2.4rem 0;
}
.read-box p { font-size: 0.98rem; }

.pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin-bottom: 1.6rem;
}
.pager-link {
  display: block;
  padding: 1rem 1.2rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.pager-link:hover { border-color: var(--isi-azure); transform: translateY(-2px); }
.pager-link span {
  display: block;
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--isi-orange);
  margin-bottom: 0.25rem;
}
.pager-link strong { font-family: var(--sans); color: var(--isi-blue); font-size: 1.02rem; line-height: 1.3; }
.pager-link.next { text-align: right; }

/* ---------- Article index ---------- */
.index-list { list-style: none; padding: 0; margin: 2rem 0 0; }
.index-row { border-top: 1px solid var(--line); }
.index-row:last-child { border-bottom: 1px solid var(--line); }
.index-row a {
  display: block;
  padding: 1.4rem 1rem 1.4rem 0;
  text-decoration: none;
  transition: padding-left 0.15s ease, background 0.15s ease;
}
.index-row a:hover { padding-left: 1rem; background: rgba(40, 203, 255, 0.07); }
.index-section {
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--isi-orange);
  margin: 0 0 0.3rem;
}
.index-row h3 { font-size: 1.32rem; font-weight: 800; margin: 0 0 0.2rem; }
.index-sub { color: var(--ink-soft); margin: 0 0 0.35rem; }
.index-authors { font-family: var(--sans); font-size: 0.94rem; color: var(--ink); margin: 0; }

@media (max-width: 620px) {
  .pager { grid-template-columns: 1fr; }
  .pager-link.next { text-align: left; }
  .read-box { flex-direction: column; align-items: flex-start; }
}

/* ---------- Motion ---------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero-inner > * { animation: fadeUp 0.7s ease both; }
.hero-inner > *:nth-child(2) { animation-delay: 0.08s; }
.hero-inner > *:nth-child(3) { animation-delay: 0.16s; }
.hero-inner > *:nth-child(4) { animation-delay: 0.24s; }
.hero-inner > *:nth-child(5) { animation-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .latest-grid { grid-template-columns: 1fr; gap: 2rem; }
  .latest-cover { max-width: 240px; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.8rem; }
  .hero-badge { width: 88px; height: 88px; font-size: 0.95rem; top: 18px; right: 18px; }
}

@media (max-width: 620px) {
  .issue-card { flex-direction: column; gap: 1.2rem; }
  .issue-card-cover { flex: 0 0 auto; max-width: 160px; }
  .filters { flex-direction: column; align-items: stretch; }
}

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 16px 30px rgba(5, 5, 94, 0.12);
    padding: 0.6rem 1.4rem 1.1rem;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 0.7rem 0; width: 100%; }
  .site-nav a[aria-current="page"] { box-shadow: none; }
  .site-nav .nav-cta { margin-top: 0.6rem; text-align: center; }
}

@media (max-width: 560px) {
  .section { padding: 3.2rem 0; }
  .hero-inner { padding: 4.2rem 1.2rem 3.6rem; }
  .hero-badge { display: none; }
}

/* ---------- Contact form ---------- */
.contact-form { max-width: 640px; }
.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.field { margin-bottom: 1.5rem; }
.field > label {
  display: block;
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--isi-orange);
  margin-bottom: 0.45rem;
}
.field .req { color: var(--isi-orange); }
.field .opt {
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--ink-soft);
}
.field input[type="text"],
.field input[type="email"],
.field select,
.field textarea {
  width: 100%;
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.7rem 0.9rem;
}
.field select { font-family: var(--sans); font-size: 1rem; }
.field textarea { resize: vertical; min-height: 9rem; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--isi-azure); }
.field input:invalid:not(:placeholder-shown),
.field textarea:invalid:not(:placeholder-shown) { border-color: var(--isi-orange); }
.field-hint { font-size: 0.94rem; color: var(--ink-soft); margin: 0.4rem 0 0; }

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
}
.checkbox-row input { margin-top: 0.42rem; flex: 0 0 auto; width: 18px; height: 18px; }
.checkbox-row > label {
  font-family: var(--serif);
  font-size: 0.98rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink);
  margin: 0;
}

.form-status {
  font-family: var(--sans);
  font-size: 1rem;
  margin: 1.2rem 0 0;
  padding: 0;
}
.form-status:empty { display: none; }
.form-status.is-ok {
  padding: 0.9rem 1.1rem;
  border-left: 4px solid var(--isi-azure);
  background: var(--tint);
  color: var(--ink);
}
.form-status.is-error {
  padding: 0.9rem 1.1rem;
  border-left: 4px solid var(--isi-orange);
  background: #fdf1ee;
  color: var(--ink);
}
button[disabled] { opacity: 0.6; cursor: progress; }