/* ==========================================================================
   Infynara — Global stylesheet
   ========================================================================== */

:root {
  --color-bg: #0a0d12;
  --color-bg-alt: #0e131b;
  --color-bg-elevated: #131a24;
  --color-line: rgba(245, 246, 243, 0.1);
  --color-line-strong: rgba(245, 246, 243, 0.18);
  --color-text: #f5f6f3;
  --color-text-muted: rgba(245, 246, 243, 0.68);
  --color-text-faint: rgba(245, 246, 243, 0.44);
  --color-gold: #c6a05f;
  --color-gold-bright: #e0bd80;
  --color-cyan: #5fd0e0;
  --shadow-lift: 0 20px 60px rgba(0, 0, 0, 0.45);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font-display: "Calibri", "Candara", "Segoe UI", "Optima", sans-serif;
  --font-body: "Calibri", "Candara", "Segoe UI", "Optima", sans-serif;
  --container: 1240px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

section {
  position: relative;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 20px;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--color-gold);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.6rem, 5vw, 4.6rem);
  font-weight: 480;
}

h2 {
  font-size: clamp(2rem, 3.4vw, 3.1rem);
}

h3 {
  font-size: clamp(1.3rem, 2vw, 1.7rem);
}

p {
  color: var(--color-text-muted);
}

.lede {
  font-size: clamp(1.05rem, 1.4vw, 1.3rem);
  color: var(--color-text-muted);
  max-width: 640px;
}

.section-head {
  max-width: 720px;
  margin-bottom: 64px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-head.center .eyebrow::before {
  display: none;
}

.rule {
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, var(--color-gold) 0%, rgba(198, 160, 95, 0) 60%);
  opacity: 0.6;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.35s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-gold);
  color: #12100a;
}

.btn-primary:hover {
  background: var(--color-gold-bright);
  transform: translateY(-1px);
}

.btn-ghost {
  border-color: var(--color-line-strong);
  color: var(--color-text);
}

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

.btn svg {
  width: 14px;
  height: 14px;
  transition: transform 0.3s var(--ease);
}

.btn:hover svg {
  transform: translateX(3px);
}

/* ---------- Header ---------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 26px 0;
  transition: all 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  padding: 16px 0;
  background: rgba(10, 13, 18, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-line);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand img {
  height: 24px;
  width: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.main-nav ul {
  display: flex;
  gap: 36px;
}

.main-nav a {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  transition: color 0.25s var(--ease);
  position: relative;
  padding: 4px 0;
}

.main-nav a:hover,
.main-nav a.is-active {
  color: var(--color-text);
}

.main-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--color-gold);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 24px;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.lang-switch a {
  color: var(--color-text-faint);
  transition: color 0.25s var(--ease);
  padding: 4px 2px;
}

.lang-switch a:hover,
.lang-switch a.is-active {
  color: var(--color-gold-bright);
}

.mobile-drawer .lang-switch {
  margin-top: 8px;
  gap: 18px;
  font-size: 1rem;
}

html.lang-loading body {
  opacity: 0;
}

body {
  transition: opacity 0.15s ease;
}

.header-cta .btn {
  padding: 11px 22px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 200;
}

.nav-toggle span {
  width: 24px;
  height: 1px;
  background: var(--color-text);
  transition: all 0.3s var(--ease);
}

.mobile-drawer {
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  z-index: 150;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s var(--ease);
}

.mobile-drawer.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer a {
  font-family: var(--font-display);
  font-size: 1.8rem;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: radial-gradient(ellipse at 30% 20%, #131c28 0%, #0a0d12 70%);
}

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

.hero-media video,
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (orientation: portrait) {
  .hero-media video {
    object-fit: contain;
  }
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 13, 18, 0.35) 0%, rgba(10, 13, 18, 0.55) 55%, rgba(10, 13, 18, 0.96) 100%),
    linear-gradient(90deg, rgba(10, 13, 18, 0.5) 0%, rgba(10, 13, 18, 0.05) 45%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 220px 0 120px;
  width: 100%;
}

.hero-content .eyebrow {
  color: var(--color-gold-bright);
}

.hero-content h1 {
  max-width: 880px;
  color: #fff;
}

.hero-content .lede {
  margin-top: 26px;
  max-width: 560px;
  color: rgba(245, 246, 243, 0.82);
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 44px;
  flex-wrap: wrap;
}

.hero-scroll-cue {
  position: absolute;
  bottom: 40px;
  right: 32px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.hero-scroll-cue .line {
  width: 1px;
  height: 40px;
  background: var(--color-line-strong);
  position: relative;
  overflow: hidden;
}

.hero-scroll-cue .line::after {
  content: "";
  position: absolute;
  top: -40px;
  left: 0;
  width: 100%;
  height: 40px;
  background: var(--color-gold);
  animation: scrollcue 2.2s var(--ease) infinite;
}

@keyframes scrollcue {
  0% { top: -40px; }
  60% { top: 40px; }
  100% { top: 40px; }
}

/* ---------- Page (interior) hero ---------- */

.page-hero {
  position: relative;
  padding: 200px 0 100px;
  overflow: hidden;
  background: var(--color-bg);
}

.page-hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-hero-media video,
.page-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (orientation: portrait) {
  .page-hero-media video {
    object-fit: contain;
  }
}

.page-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 13, 18, 0.35) 0%, rgba(10, 13, 18, 0.55) 55%, var(--color-bg) 92%);
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  max-width: 760px;
}

.page-hero .lede {
  margin-top: 24px;
}

/* ---------- Generic section spacing ---------- */

.section {
  padding: 130px 0;
}

.section-tight {
  padding: 90px 0;
}

.bg-alt {
  background: var(--color-bg-alt);
}

/* ---------- Value grid ---------- */

.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
}

.value-card {
  background: var(--color-bg);
  padding: 44px 34px;
  transition: background 0.35s var(--ease);
}

.value-card:hover {
  background: var(--color-bg-elevated);
}

.value-card .num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--color-gold);
  letter-spacing: 0.05em;
  margin-bottom: 26px;
  display: block;
}

.value-card h3 {
  margin-bottom: 14px;
  font-size: 1.2rem;
}

.value-card p {
  font-size: 0.92rem;
}

/* ---------- Split / teaser rows ---------- */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 90px;
  align-items: center;
}

.split-reverse .split-media {
  order: 2;
}

.split-media {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border: 1px solid var(--color-line-strong);
}

.split-media img,
.split-media video,
.split-media svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.split-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(198, 160, 95, 0.16), transparent 55%);
  pointer-events: none;
}

.split-body .eyebrow {
  margin-bottom: 22px;
}

.split-body h2 {
  margin-bottom: 24px;
}

.split-body p + p {
  margin-top: 16px;
}

.split-body .btn {
  margin-top: 36px;
}

/* ---------- Pillars (Platform page) ---------- */

.pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
}

.pillar {
  background: var(--color-bg);
  padding: 56px;
}

.pillar .icon {
  width: 46px;
  height: 46px;
  margin-bottom: 30px;
  color: var(--color-gold);
}

.pillar h3 {
  margin-bottom: 16px;
}

.pillar p {
  font-size: 0.95rem;
}

/* ---------- Process steps ---------- */

.process {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  counter-reset: step;
}

.process-step {
  position: relative;
  padding-top: 36px;
  border-top: 1px solid var(--color-line-strong);
}

.process-step .step-index {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--color-gold);
  display: block;
  margin-bottom: 20px;
}

.process-step h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.process-step p {
  font-size: 0.9rem;
}

/* ---------- Criteria list (Approach page) ---------- */

.criteria-list {
  display: grid;
  gap: 1px;
  background: var(--color-line);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.criteria-item {
  background: var(--color-bg);
  display: grid;
  grid-template-columns: 90px 1fr 2fr;
  gap: 40px;
  padding: 38px 0;
  align-items: baseline;
}

.criteria-item .tag {
  font-family: var(--font-display);
  color: var(--color-gold);
  font-size: 0.85rem;
}

.criteria-item h3 {
  font-size: 1.15rem;
}

.criteria-item p {
  font-size: 0.92rem;
  margin: 0;
}

/* ---------- Stat / ESG band ---------- */

.band {
  padding: 110px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
}

.band-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.band-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.band-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 13, 18, 0.32) 0%, rgba(10, 13, 18, 0.5) 55%, var(--color-bg-alt) 100%);
}

.band .container {
  position: relative;
  z-index: 1;
}

.band h2 {
  max-width: 780px;
  margin: 0 auto 26px;
  text-shadow: 0 2px 24px rgba(10, 13, 18, 0.85);
}

.band .lede {
  margin: 0 auto;
  max-width: 620px;
  text-align: center;
  text-shadow: 0 2px 16px rgba(10, 13, 18, 0.85);
}

.band-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 48px;
}

.band-tags span {
  border: 1px solid var(--color-line-strong);
  background: rgba(10, 13, 18, 0.55);
  padding: 10px 20px;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  border-radius: 2px;
}

/* ---------- Closing CTA ---------- */

.cta-band {
  padding: 150px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: var(--color-bg-alt);
}

.cta-band::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, rgba(198, 160, 95, 0.14) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.cta-band .container {
  position: relative;
}

.cta-band h2 {
  max-width: 760px;
  margin: 0 auto 30px;
}

.cta-band .lede {
  margin: 0 auto 44px;
  text-align: center;
}

.cta-band .btn {
  margin: 0 auto;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 90px;
}

.contact-info h3 {
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.contact-info .info-block {
  margin-bottom: 40px;
}

.contact-info .info-block a,
.contact-info .info-block p {
  font-size: 0.98rem;
}

.contact-info .info-block a {
  color: var(--color-gold-bright);
}

.form-field {
  margin-bottom: 26px;
}

.form-field label {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 10px;
}

.form-field input,
.form-field textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-line-strong);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 10px 2px;
  transition: border-color 0.3s var(--ease);
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-gold);
}

.form-field textarea {
  resize: vertical;
  min-height: 110px;
}

.form-note {
  margin-top: 22px;
  font-size: 0.82rem;
  color: var(--color-text-faint);
}

.form-success {
  border: 1px solid var(--color-line-strong);
  padding: 48px 40px;
}

.form-success h3 {
  color: var(--color-gold-bright);
  margin-bottom: 12px;
}

.form-success p {
  margin: 0;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--color-line);
  padding: 80px 0 40px;
  background: var(--color-bg);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 60px;
}

.footer-brand img {
  height: 22px;
  margin-bottom: 22px;
}

.footer-brand p {
  font-size: 0.9rem;
  max-width: 300px;
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 22px;
  font-weight: 600;
}

.footer-col ul li {
  margin-bottom: 14px;
}

.footer-col a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: color 0.25s var(--ease);
}

.footer-col a:hover {
  color: var(--color-gold-bright);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid var(--color-line);
  font-size: 0.78rem;
  color: var(--color-text-faint);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-legal {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.footer-legal a {
  color: var(--color-text-faint);
  transition: color 0.25s var(--ease);
}

.footer-legal a:hover {
  color: var(--color-gold-bright);
}

/* ---------- Legal page content ---------- */

.legal-content {
  max-width: 760px;
}

.legal-content .updated {
  font-size: 0.82rem;
  color: var(--color-text-faint);
  margin-bottom: 60px;
}

.legal-content section {
  margin-bottom: 48px;
}

.legal-content section:last-child {
  margin-bottom: 0;
}

.legal-content h2 {
  font-size: 1.3rem;
  margin-bottom: 16px;
}

.legal-content p {
  font-size: 0.96rem;
  margin-bottom: 14px;
}

.legal-content p:last-child {
  margin-bottom: 0;
}

.legal-content a {
  color: var(--color-gold-bright);
}

/* ---------- Scroll reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */

@media (max-width: 980px) {
  .main-nav .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .header-cta .btn-ghost { display: none; }
  .header-cta .lang-switch { display: none; }

  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .pillars { grid-template-columns: 1fr; }
  .process { grid-template-columns: repeat(2, 1fr); }
  .split, .contact-grid { grid-template-columns: 1fr; gap: 50px; }
  .split-reverse .split-media { order: 0; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
  .criteria-item { grid-template-columns: 60px 1fr; }
  .criteria-item p { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  .container { padding: 0 20px; }
  .value-grid { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 36px; }
  .hero-content { padding: 160px 0 90px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .cta-actions .btn { width: 100%; justify-content: center; }
  .hero-scroll-cue { display: none; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}