/* IBER OIL TRADE ARBITRAGE S.L. — public website
   Bilingual (EN/ES), static, self-contained. One stylesheet for both pages.
   Editorial system: warm paper ground, serif display, uppercase section labels,
   numbered cards and dark contrast bands.
   Palette taken from the company mark: amber flame, crimson wordmark, charcoal. */

:root {
  --ink-950: #14100f;
  --ink-900: #221b19;
  --ink-800: #332a26;
  --amber-500: #d99a25;
  --amber-300: #f0cd83;
  --ember-500: #b6212b;
  --ember-600: #8f1a22;
  --paper: #f7f3ee;
  --paper-2: #fffdfa;
  --ink: #1d1a18;
  --muted: #6f6862;
  --line: rgba(29, 26, 24, 0.14);
  --line-dark: rgba(255, 255, 255, 0.16);
  --white: #ffffff;
  --shadow: 0 28px 80px rgba(20, 16, 15, 0.18);
  --rail: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

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

.rail {
  margin: 0 auto;
  max-width: var(--rail);
  padding: 0 clamp(20px, 5vw, 48px);
}

.section {
  padding: clamp(66px, 8vw, 118px) 0;
}

.section-label {
  color: var(--ember-500);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  margin: 0 0 16px;
  text-transform: uppercase;
}

.section-label.on-dark {
  color: var(--amber-300);
}

h1,
h2,
h3 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 600;
  letter-spacing: -0.005em;
  margin: 0;
}

h2 {
  color: var(--ink-950);
  font-size: clamp(30px, 3.6vw, 50px);
  line-height: 1.06;
}

h3 {
  color: var(--ink-950);
  font-size: 21px;
  line-height: 1.2;
}

.section-heading {
  align-items: end;
  display: grid;
  gap: 26px;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.72fr);
  margin-bottom: 46px;
}

.section-heading p:not(.section-label) {
  color: var(--muted);
  font-size: 16px;
  margin: 0;
}

/* ---------- header ---------- */

.site-header {
  align-items: center;
  background: rgba(247, 243, 238, 0.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 26px;
  justify-content: space-between;
  padding: 11px clamp(20px, 5vw, 48px);
  position: sticky;
  top: 0;
  z-index: 30;
}

.brand {
  align-items: center;
  display: inline-flex;
  gap: 12px;
  text-decoration: none;
}

.brand img {
  height: 46px;
  object-fit: contain;
  width: auto;
}

.brand span {
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  padding-left: 12px;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  gap: clamp(12px, 1.6vw, 26px);
}

.main-nav a {
  font-size: 13.5px;
  font-weight: 650;
  text-decoration: none;
}

.main-nav a:hover {
  color: var(--ember-500);
}

.header-aside {
  align-items: center;
  display: flex;
  gap: 14px;
}

.lang {
  display: inline-flex;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.lang a {
  border: 1px solid var(--line);
  color: var(--muted);
  padding: 7px 11px;
  text-decoration: none;
}

.lang a.is-active {
  background: var(--ink-950);
  border-color: var(--ink-950);
  color: var(--paper-2);
}

.header-cta {
  border: 1px solid var(--ink-950);
  font-size: 12.5px;
  font-weight: 800;
  padding: 10px 18px;
  text-decoration: none;
}

.header-cta:hover {
  background: var(--ink-950);
  color: var(--paper-2);
}

/* ---------- hero ---------- */

.hero {
  align-items: end;
  background: var(--ink-950);
  display: grid;
  min-height: min(84vh, 780px);
  overflow: hidden;
  position: relative;
}

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

.hero::after {
  background: linear-gradient(180deg, rgba(20, 16, 15, 0.5) 0%, rgba(20, 16, 15, 0.22) 34%, rgba(20, 16, 15, 0.94) 100%);
  content: "";
  inset: 0;
  position: absolute;
}

.hero-content {
  padding-bottom: clamp(96px, 11vw, 148px);
  position: relative;
  z-index: 2;
}

.hero-rule {
  background: var(--amber-500);
  height: 3px;
  margin-bottom: 24px;
  width: 66px;
}

.hero h1 {
  color: var(--white);
  font-size: clamp(36px, 4.6vw, 66px);
  line-height: 1.04;
  max-width: 17ch;
}

.hero p {
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(16px, 1.3vw, 19px);
  margin: 22px 0 0;
  max-width: 60ch;
}

.lines-strip {
  background: rgba(20, 16, 15, 0.82);
  border-top: 1px solid rgba(240, 205, 131, 0.24);
  bottom: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  left: 0;
  position: absolute;
  right: 0;
  z-index: 3;
}

.lines-strip a {
  border-right: 1px solid rgba(240, 205, 131, 0.2);
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(11px, 1.1vw, 13px);
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 20px clamp(14px, 3vw, 40px);
  text-decoration: none;
  text-transform: uppercase;
}

.lines-strip a:last-child {
  border-right: 0;
}

.lines-strip a:hover {
  background: rgba(217, 154, 37, 0.16);
}

.lines-strip b {
  color: var(--amber-300);
  display: block;
  font-family: Georgia, serif;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0;
  margin-bottom: 4px;
}

/* ---------- business lines ---------- */

.lines-grid {
  display: grid;
  gap: 26px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.line-card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
}

.line-card > img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  width: 100%;
}

.line-card-body {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  padding: 26px 26px 30px;
}

.line-number {
  color: var(--amber-500);
  font-family: Georgia, serif;
  font-size: 28px;
  line-height: 1;
  margin-bottom: 16px;
}

.line-card p {
  color: var(--muted);
  font-size: 15px;
  margin: 14px 0 0;
}

.line-card ul {
  border-top: 1px solid var(--line);
  list-style: none;
  margin: 22px 0 0;
  padding: 18px 0 0;
}

.line-card li {
  color: var(--ink);
  font-size: 14px;
  padding: 6px 0 6px 18px;
  position: relative;
}

.line-card li::before {
  background: var(--ember-500);
  content: "";
  height: 5px;
  left: 0;
  position: absolute;
  top: 14px;
  width: 5px;
}

/* ---------- scope ---------- */

.scope {
  background: var(--paper-2);
  border: 1px solid var(--line);
  display: grid;
  grid-template-columns: minmax(190px, 0.62fr) repeat(3, minmax(0, 1fr));
  margin-top: 34px;
}

.scope strong {
  align-content: center;
  background: var(--ink-950);
  color: var(--amber-300);
  display: grid;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.12em;
  padding: 22px 24px;
  text-transform: uppercase;
}

.scope span {
  align-content: center;
  border-left: 1px solid var(--line);
  color: var(--ink);
  display: grid;
  font-size: 14.5px;
  font-weight: 650;
  padding: 22px 24px;
}

.scope span em {
  color: var(--muted);
  display: block;
  font-size: 13px;
  font-style: normal;
  font-weight: 400;
  margin-top: 3px;
}

/* ---------- products ---------- */

.products {
  background: var(--ink-900);
  color: var(--white);
}

.products h2 {
  color: var(--white);
}

.products .section-heading p:not(.section-label) {
  color: rgba(255, 255, 255, 0.72);
}

.product-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.product-card {
  border: 1px solid var(--line-dark);
  overflow: hidden;
}

.product-card img {
  aspect-ratio: 3 / 2;
  object-fit: cover;
  width: 100%;
}

.product-card div {
  padding: 20px 20px 24px;
}

.product-card span {
  color: var(--amber-300);
  display: block;
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.14em;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.product-card h3 {
  color: var(--white);
  font-size: 19px;
}

.product-card p {
  color: rgba(255, 255, 255, 0.62);
  font-size: 13.5px;
  margin: 9px 0 0;
}

.products-note {
  border-left: 3px solid var(--amber-500);
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
  margin: 34px 0 0;
  max-width: 76ch;
  padding-left: 16px;
}

/* ---------- process ---------- */

.process {
  background: var(--paper-2);
}

.process-rail {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 46px;
  position: relative;
}

.process-rail::before {
  background: linear-gradient(90deg, var(--amber-500), var(--ember-500));
  content: "";
  height: 2px;
  left: 0;
  position: absolute;
  right: 0;
  top: 27px;
}

.process-rail article {
  padding: 66px 24px 0 0;
  position: relative;
}

.process-rail span {
  align-items: center;
  background: var(--ink-900);
  border: 4px solid var(--paper-2);
  border-radius: 50%;
  color: var(--amber-300);
  display: flex;
  font-size: 12px;
  font-weight: 900;
  height: 56px;
  justify-content: center;
  left: 0;
  position: absolute;
  top: 0;
  width: 56px;
  z-index: 1;
}

.process-rail p {
  color: var(--muted);
  font-size: 14.5px;
  margin: 12px 0 0;
}

/* ---------- philosophy ---------- */

.philosophy {
  background: var(--paper);
}

.philosophy-grid {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.philosophy-grid article {
  background: var(--paper-2);
  border: 1px solid var(--line);
  min-height: 250px;
  padding: 30px;
}

.philosophy-grid h3 {
  font-size: 24px;
  margin-bottom: 14px;
}

.philosophy-grid p {
  color: var(--muted);
  font-size: 15px;
  margin: 0;
}

.values {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 26px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 44px;
  padding-top: 34px;
}

.values div strong {
  color: var(--ember-500);
  display: block;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.12em;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.values div p {
  color: var(--muted);
  font-size: 14.5px;
  margin: 0;
}

/* ---------- people ---------- */

.people {
  background: var(--paper-2);
}

.people .split {
  align-items: center;
  display: grid;
  gap: clamp(32px, 5vw, 72px);
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1fr);
}

.people figure {
  margin: 0;
}

.people figure img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  width: 100%;
}

.people-copy p {
  color: var(--muted);
  font-size: 16.5px;
  margin: 20px 0 0;
}

.people-facts {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 30px;
  padding-top: 24px;
}

.people-facts strong {
  color: var(--ink-950);
  display: block;
  font-family: Georgia, serif;
  font-size: 17px;
}

.people-facts span {
  color: var(--muted);
  font-size: 13.5px;
}

/* ---------- presence in the market ---------- */

.presence {
  background: var(--paper);
}

.event-card {
  align-items: center;
  background: var(--ink-950);
  color: var(--white);
  display: grid;
  gap: clamp(24px, 4vw, 56px);
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  margin-top: 8px;
  padding: clamp(26px, 3.4vw, 40px);
}

.event-id span {
  color: var(--amber-300);
  display: block;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.16em;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.event-id h3 {
  color: var(--white);
  font-size: clamp(21px, 2.2vw, 30px);
  line-height: 1.18;
}

.event-card dl {
  border-top: 1px solid var(--line-dark);
  display: grid;
  gap: 0;
  margin: 0;
}

.event-card dl > div {
  border-bottom: 1px solid var(--line-dark);
  display: grid;
  gap: 8px 20px;
  grid-template-columns: minmax(110px, 0.5fr) minmax(0, 1fr);
  padding: 13px 0;
}

.event-card dt {
  color: rgba(255, 255, 255, 0.56);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.event-card dd {
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
  margin: 0;
}

.presence-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 26px;
}

.presence-grid figure {
  margin: 0;
}

.presence-grid figure.wide {
  grid-column: span 2;
}

.presence-grid img {
  aspect-ratio: 3 / 2;
  border: 1px solid var(--line);
  object-fit: cover;
  width: 100%;
}

.presence-grid img.focus-upper {
  object-position: center 32%;
}

.presence-grid figcaption {
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.45;
  margin-top: 9px;
}

.presence-note {
  border-left: 3px solid var(--amber-500);
  color: var(--muted);
  font-size: 14.5px;
  margin-top: 34px;
  max-width: 82ch;
  padding-left: 16px;
}

/* ---------- governance (restrained) ---------- */

.governance {
  background: var(--ink-950);
  color: var(--white);
  padding: clamp(48px, 6vw, 74px) 0;
}

.governance .rail {
  align-items: start;
  display: grid;
  gap: clamp(28px, 5vw, 64px);
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
}

.governance h2 {
  color: var(--white);
  font-size: clamp(26px, 2.6vw, 34px);
}

.governance p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 15.5px;
  margin: 16px 0 0;
}

.governance .custody {
  border-left: 3px solid var(--amber-500);
  color: var(--white);
  font-weight: 600;
  padding-left: 16px;
}

.governance-items {
  display: grid;
  gap: 18px 30px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding-top: 8px;
}

.governance-items div strong {
  color: var(--amber-300);
  display: block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.governance-items div span {
  color: rgba(255, 255, 255, 0.66);
  font-size: 14px;
}

/* ---------- contact ---------- */

.contact {
  background: var(--paper);
}

.contact .split {
  align-items: start;
  display: grid;
  gap: clamp(32px, 5vw, 72px);
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
}

.contact-copy p {
  color: var(--muted);
  font-size: 17px;
  margin: 20px 0 0;
}

.contact-mail {
  color: var(--ember-500);
  display: inline-block;
  font-size: 19px;
  font-weight: 800;
  margin-top: 22px;
  text-decoration: none;
}

.office {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  margin-top: 28px;
  padding-top: 22px;
}

.form {
  background: var(--paper-2);
  border: 1px solid var(--line);
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: clamp(22px, 3vw, 34px);
}

label {
  color: var(--ink-900);
  display: grid;
  font-size: 10.5px;
  font-weight: 900;
  gap: 7px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

label.full {
  grid-column: 1 / -1;
}

/* Bot trap — off-screen, never shown to a visitor, never focusable. */
.hp {
  height: 0;
  left: -9999px;
  overflow: hidden;
  position: absolute;
  width: 0;
}

input,
textarea {
  background: var(--white);
  border: 1px solid rgba(29, 26, 24, 0.18);
  color: var(--ink);
  font: inherit;
  font-size: 15px;
  min-height: 46px;
  padding: 11px 12px;
  width: 100%;
}

textarea {
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: var(--ember-500);
  outline: 3px solid rgba(182, 33, 43, 0.14);
}

.form button {
  background: var(--ember-500);
  border: 0;
  color: var(--white);
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 900;
  justify-self: start;
  letter-spacing: 0.09em;
  min-height: 48px;
  padding: 0 28px;
  text-transform: uppercase;
}

.form button:hover {
  background: var(--ember-600);
}

.form-note {
  align-self: center;
  color: var(--ember-600);
  font-size: 13px;
  margin: 0;
}

/* ---------- footer ---------- */

.site-footer {
  background: var(--ink-950);
  color: rgba(255, 255, 255, 0.72);
  padding: 44px 0 0;
}

.footer-top {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
  padding-bottom: 28px;
}

.footer-top img {
  background: var(--white);
  height: 62px;
  object-fit: contain;
  padding: 8px 12px;
  width: auto;
}

.footer-top nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-top nav a {
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  font-weight: 650;
  text-decoration: none;
}

.legal {
  border-top: 1px solid var(--line-dark);
  font-size: 12px;
  line-height: 1.62;
  padding: 22px 0 44px;
}

.legal p {
  margin: 0 0 10px;
}

.legal strong {
  color: var(--white);
}

/* ---------- responsive ---------- */

@media (max-width: 1060px) {
  .lines-grid,
  .product-grid,
  .process-rail,
  .philosophy-grid,
  .values,
  .presence-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .presence-grid figure.wide {
    grid-column: span 2;
  }

  .event-card {
    grid-template-columns: 1fr;
  }

  .scope {
    grid-template-columns: 1fr;
  }

  .scope span {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .process-rail::before {
    display: none;
  }
}

@media (max-width: 900px) {
  .main-nav {
    display: none;
  }

  .section-heading,
  .people .split,
  .contact .split,
  .governance .rail {
    grid-template-columns: 1fr;
  }

  .lines-strip {
    grid-template-columns: 1fr;
  }

  .lines-strip a {
    border-bottom: 1px solid rgba(240, 205, 131, 0.18);
    border-right: 0;
    padding: 12px 20px;
  }

  .lines-strip b {
    display: inline;
    margin-right: 8px;
  }

  .hero-content {
    padding-bottom: 190px;
  }
}

@media (max-width: 620px) {
  .lines-grid,
  .product-grid,
  .process-rail,
  .philosophy-grid,
  .values,
  .people-facts,
  .governance-items,
  .presence-grid,
  .form {
    grid-template-columns: 1fr;
  }

  .presence-grid figure.wide {
    grid-column: auto;
  }

  .header-cta {
    display: none;
  }

  .hero {
    min-height: 640px;
  }

  .philosophy-grid article {
    min-height: auto;
  }
}