/* ============================================================
   IVANOV CIS BEVERAGE ADVISORY — style.css
   ============================================================ */

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

:root {
  --white:      #ffffff;
  --off-white:  #f8f7f5;
  --near-black: #111110;
  --dark:       #1c1c1a;
  --gray-700:   #3d3d3a;
  --gray-500:   #6b6b67;
  --gray-300:   #c4c3be;
  --gray-100:   #edecea;
  --gold:       #b59a6a;
  --gold-light: #d4bc8e;

  --font-sans:  'Inter', system-ui, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;

  --header-h:   72px;
  --radius:     3px;
  --transition: 0.25s ease;

  --section-py: clamp(72px, 10vw, 120px);
  --container:  1160px;
  --gutter:     clamp(20px, 5vw, 48px);
}

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--near-black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

/* ── Utility ──────────────────────────────────────────────── */
/* .hidden hides any element — !important overrides all display values.
   Language switching: HTML initialises non-EN elements with class="…-text hidden".
   script.js toggles .hidden on/off; elements then restore their natural display
   (block for <p>, inline for <span>) without any extra rules needed here. */
.hidden { display: none !important; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-py); }

.section-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 24px;
}

.section-heading {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 400;
  line-height: 1.2;
  color: var(--near-black);
  max-width: 560px;
  margin-bottom: 40px;
}
.section-heading.centered { margin-inline: auto; text-align: center; max-width: 640px; }

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.03em;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), transform var(--transition);
}

.btn-primary {
  background: var(--near-black);
  color: var(--white);
  border: 1.5px solid var(--near-black);
}
.btn-primary:hover {
  background: var(--dark);
  border-color: var(--dark);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--near-black);
  border: 1.5px solid var(--gray-300);
}
.btn-ghost:hover {
  border-color: var(--near-black);
  transform: translateY(-1px);
}

/* ── Header ───────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
  border-bottom-color: var(--gray-100);
  box-shadow: 0 1px 24px rgba(0,0,0,0.06);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 40px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  line-height: 1;
}
.logo-img {
  height: 42px;
  width: auto;
  display: block;
}

/* Nav */
.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-left: auto;
}
.main-nav a {
  font-size: 13.5px;
  font-weight: 400;
  color: var(--gray-700);
  letter-spacing: 0.01em;
  transition: color var(--transition);
  white-space: nowrap;
}
.main-nav a:hover { color: var(--near-black); }

.nav-cta {
  padding: 9px 20px;
  border: 1.5px solid var(--near-black);
  border-radius: var(--radius);
  font-size: 13px !important;
  font-weight: 500 !important;
  color: var(--near-black) !important;
  transition: background var(--transition), color var(--transition) !important;
}
.nav-cta:hover {
  background: var(--near-black);
  color: var(--white) !important;
}

/* Lang switcher */
.header-controls { display: flex; align-items: center; gap: 16px; }

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 6px;
}
.lang-btn {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--gray-500);
  transition: color var(--transition);
  padding: 2px 0;
}
.lang-btn.active { color: var(--near-black); }
.lang-btn:hover  { color: var(--near-black); }
.lang-divider    { color: var(--gray-300); font-size: 11px; }

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.burger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--near-black);
  transition: transform var(--transition), opacity var(--transition);
}
.burger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  padding-top: calc(var(--header-h) + clamp(60px, 10vw, 120px));
  padding-bottom: clamp(80px, 12vw, 140px);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; right: -20%;
  width: 55%;
  height: 100%;
  background: radial-gradient(ellipse at 70% 40%, rgba(181,154,106,0.07) 0%, transparent 65%);
  pointer-events: none;
}

.hero-inner { max-width: 800px; }

.hero-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 28px;
}

h1.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 400;
  line-height: 1.12;
  color: var(--near-black);
  margin-bottom: 28px;
  letter-spacing: -0.01em;
}

.hero-sub {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--gray-500);
  max-width: 580px;
  margin-bottom: 44px;
  line-height: 1.6;
  font-weight: 300;
}

.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; }

.hero-line {
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 2 * var(--gutter));
  max-width: var(--container);
  height: 1px;
  background: var(--gray-100);
}

.br-desk { display: block; }

/* ── About ────────────────────────────────────────────────── */
.about { background: var(--white); }

.about-inner {
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-text p {
  font-size: 15.5px;
  color: var(--gray-700);
  line-height: 1.75;
  margin-bottom: 20px;
}
.about-text p:last-child { margin-bottom: 0; }
.about-text strong { color: var(--near-black); font-weight: 500; }

/* Brand logos */
.brands-worked {
  border-top: 1px solid var(--gray-100);
  padding-top: 48px;
}

.brands-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-300);
  margin-bottom: 32px;
}

.brands-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px 56px;
}

.brand-logo-item {
  opacity: 0.45;
  filter: grayscale(1);
  transition: opacity var(--transition), filter var(--transition);
  max-height: 40px;
  display: flex;
  align-items: center;
}
.brand-logo-item:hover { opacity: 0.75; filter: grayscale(0.4); }
.brand-logo-item img {
  max-height: 36px;
  width: auto;
  object-fit: contain;
}

/* ── For Who ──────────────────────────────────────────────── */
.for-who { background: var(--off-white); }

.cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 8px;
}

.card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: 4px;
  padding: clamp(32px, 4vw, 48px);
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover {
  box-shadow: 0 8px 40px rgba(0,0,0,0.07);
  transform: translateY(-2px);
}

.card-icon {
  color: var(--gold);
  margin-bottom: 24px;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 400;
  color: var(--near-black);
  margin-bottom: 24px;
  line-height: 1.3;
}

.card-list li {
  font-size: 14.5px;
  color: var(--gray-700);
  padding: 11px 0;
  border-bottom: 1px solid var(--gray-100);
  padding-left: 16px;
  position: relative;
  line-height: 1.55;
}
.card-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--gold);
}
.card-list li:last-child { border-bottom: none; }

/* ── Services ─────────────────────────────────────────────── */
.services { background: var(--white); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 0;
  border-top: 1px solid var(--gray-100);
  border-left: 1px solid var(--gray-100);
}

.service-item {
  padding: clamp(28px, 4vw, 44px);
  border-right: 1px solid var(--gray-100);
  border-bottom: 1px solid var(--gray-100);
  transition: background var(--transition);
}
.service-item:hover { background: var(--off-white); }

.service-num {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--gold);
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
}

.service-title {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 400;
  color: var(--near-black);
  margin-bottom: 14px;
  line-height: 1.3;
}

.service-desc {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ── Focus ────────────────────────────────────────────────── */
.focus { background: var(--near-black); }

.focus .section-label { color: var(--gold-light); }

.focus-inner { display: flex; flex-direction: column; gap: 48px; }

.focus-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.focus .section-heading { color: var(--white); }

.focus-text p {
  font-size: 15.5px;
  color: rgba(255,255,255,0.6);
  line-height: 1.75;
  margin-bottom: 20px;
}
.focus-text p:last-child { margin-bottom: 0; }
.focus-text strong { color: rgba(255,255,255,0.85); font-weight: 500; }

.focus-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 40px;
}

.focus-tag {
  padding: 8px 18px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 2px;
  font-size: 13px;
  font-weight: 400;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.02em;
  transition: border-color var(--transition), color var(--transition);
}
.focus-tag:hover { border-color: var(--gold-light); color: var(--gold-light); }
.focus-tag--muted { color: rgba(255,255,255,0.3); border-color: rgba(255,255,255,0.08); font-style: italic; }
.focus-tag--muted:hover { border-color: rgba(255,255,255,0.2); color: rgba(255,255,255,0.45); }

/* ── How It Works ─────────────────────────────────────────── */
.how { background: var(--off-white); }

.steps {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: start;
  gap: 0 32px;
  margin-top: 16px;
}

.step { text-align: center; }

.step-num {
  width: 48px; height: 48px;
  border-radius: 50%;
  border: 1.5px solid var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--gold);
  margin: 0 auto 24px;
}

.step-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 400;
  color: var(--near-black);
  margin-bottom: 14px;
  line-height: 1.3;
}

.step-desc {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
  max-width: 280px;
  margin-inline: auto;
}

.step-connector {
  width: 60px;
  height: 1px;
  background: var(--gray-300);
  margin-top: 24px;
  position: relative;
}
.step-connector::after {
  content: '';
  position: absolute;
  right: -1px; top: -3.5px;
  width: 8px; height: 8px;
  border-top: 1px solid var(--gray-300);
  border-right: 1px solid var(--gray-300);
  transform: rotate(45deg);
}

/* ── Contact ──────────────────────────────────────────────── */
.contact { background: var(--white); }

.contact-inner { max-width: 680px; }

.contact-intro {
  font-size: 17px;
  color: var(--gray-500);
  line-height: 1.65;
  margin-bottom: 48px;
  font-weight: 300;
  max-width: 540px;
}

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 20px; }

.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
  tab-size: 0;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.form-group { display: flex; flex-direction: column; gap: 8px; }

.form-group label {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-500);
  display: flex;
  gap: 4px;
}

.required { color: var(--gold); }

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--near-black);
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--gray-300); }

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--near-black);
  box-shadow: 0 0 0 3px rgba(17,17,16,0.06);
}

.form-group input.error,
.form-group textarea.error { border-color: #c0392b; }

textarea { resize: vertical; min-height: 130px; }

.btn-submit {
  align-self: flex-start;
  min-width: 180px;
  justify-content: center;
  position: relative;
}

/* Spinner: hidden by default, shown only when JS adds .visible */
.btn-loading {
  display: none;
  align-items: center;
  gap: 8px;
}
.btn-loading.visible { display: flex; }

.spinner {
  display: inline-block;
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Form status — hidden by default via [hidden] attr;
   display:flex only applies when JS removes the hidden attribute */
.form-status[hidden] { display: none !important; }
.form-status {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 22px;
  border-radius: var(--radius);
  font-size: 14.5px;
  margin-bottom: 28px;
  line-height: 1.6;
}
.form-status--success { background: #f0f7f0; border: 1px solid #b8ddb8; color: #2d6a2d; }
.form-status--error   { background: #fdf2f2; border: 1px solid #e8b4b4; color: #8b2626; }
.form-status__icon    { flex-shrink: 0; margin-top: 1px; }
.form-status__body    { flex: 1; }
.form-status__body strong { display: block; margin-bottom: 4px; font-weight: 600; }

/* ── Footer ───────────────────────────────────────────────── */
.site-footer {
  background: var(--near-black);
  padding-block: clamp(40px, 6vw, 64px);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-brand { margin-bottom: 4px; }

/* Invert the SVG logo for dark background */
.footer-logo {
  height: 38px;
  width: auto;
  filter: invert(1) brightness(0.65);
}

.footer-tagline {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
}

.footer-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.4);
  max-width: 360px;
  line-height: 1.55;
}

.footer-copy {
  font-size: 12px;
  color: rgba(255,255,255,0.2);
  margin-top: 16px;
  letter-spacing: 0.02em;
}

/* ── Scroll animations ────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .main-nav { gap: 20px; }
  .about-content { gap: 40px; }
  .focus-content { gap: 40px; }
}

@media (max-width: 860px) {
  /* Header mobile */
  .burger { display: flex; }

  .main-nav {
    position: fixed;
    top: var(--header-h); left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    border-bottom: 1px solid transparent;
    transition: max-height 0.35s ease, border-color 0.35s ease, padding 0.35s ease;
  }
  .main-nav.open {
    max-height: 480px;
    border-bottom-color: var(--gray-100);
    padding: 12px 0 20px;
  }
  .main-nav a {
    width: 100%;
    padding: 12px var(--gutter);
    font-size: 15px;
  }
  .nav-cta {
    margin: 8px var(--gutter) 0;
    width: calc(100% - 2 * var(--gutter));
    text-align: center;
    padding: 12px !important;
  }

  /* Layout */
  .about-content        { grid-template-columns: 1fr; gap: 32px; }
  .focus-content        { grid-template-columns: 1fr; gap: 32px; }
  .cards-grid           { grid-template-columns: 1fr; }
  .steps {
    grid-template-columns: 1fr;
    gap: 40px 0;
  }
  .step-connector { display: none; }
  .br-desk { display: inline; }
}

@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
  .brands-logos { gap: 28px 36px; }
  .services-grid { grid-template-columns: 1fr; border-left: none; }
  .service-item { border-left: 1px solid var(--gray-100); }
}