/* ============================================================
   BASUS International — v3.0
   Light / premium corporate · Gold accent · Restrained
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* ── Tokens ──────────────────────────────────────────────── */
:root {
  --bg:          #F8F6F2;
  --bg-alt:      #EFECE6;
  --bg-dark:     #101010;
  --bg-dark-2:   #181818;
  --bg-dark-3:   #202020;

  --gold:        #B07C24;
  --gold-2:      #C9963A;
  --gold-light:  #D9A84A;
  --gold-line:   rgba(176,124,36,0.22);
  --gold-fill:   rgba(176,124,36,0.07);

  --ink:         #0F0F0F;
  --ink-2:       #4A4540;
  --ink-3:       #8A8480;
  --ink-4:       #B8B4B0;

  --rule:        #DDD9D2;
  --rule-2:      #CAC5BC;

  --font-head:   'Rajdhani', sans-serif;
  --font-body:   'Inter', sans-serif;

  --nav-h:       72px;
  --px:          clamp(1.5rem, 6vw, 6rem);
  --py:          clamp(5rem, 9vw, 8rem);
  --max-w:       1140px;
  --r:           8px;
  --ease:        cubic-bezier(0.4, 0, 0.2, 1);
  --t:           0.24s var(--ease);
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-font-smoothing: antialiased; }
body { background: var(--bg); color: var(--ink); font-family: var(--font-body); line-height: 1.7; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ── Type ────────────────────────────────────────────────── */
h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.1; font-weight: 700; }
h1 { font-size: clamp(2.6rem, 5.5vw, 4.4rem); letter-spacing: -0.02em; color: var(--ink); }
h2 { font-size: clamp(1.9rem, 3.5vw, 3rem); letter-spacing: -0.015em; }
h3 { font-size: clamp(1rem, 1.6vw, 1.2rem); font-weight: 600; }
p  { font-size: clamp(0.88rem, 1.1vw, 0.97rem); color: var(--ink-2); line-height: 1.9; }

.kicker {
  font-family: var(--font-head);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-bottom: 1rem;
}

/* ── Layout ──────────────────────────────────────────────── */
.wrap { max-width: var(--max-w); margin: 0 auto; width: 100%; }
section { padding: var(--py) var(--px); }

/* ── Reveal ──────────────────────────────────────────────── */
.js-loaded .r { opacity: 0; transform: translateY(24px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
.r.in { opacity: 1; transform: none; }
.r.d1 { transition-delay: 0.07s; }
.r.d2 { transition-delay: 0.14s; }
.r.d3 { transition-delay: 0.21s; }
.r.d4 { transition-delay: 0.28s; }
.r.d5 { transition-delay: 0.35s; }
.r.d6 { transition-delay: 0.42s; }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.85rem 2rem;
  border-radius: var(--r);
  transition: all var(--t);
  white-space: nowrap;
  cursor: pointer;
}
.btn-primary {
  background: var(--ink);
  color: #fff;
  border: 2px solid var(--ink);
}
.btn-primary:hover {
  background: var(--bg-dark-2);
  border-color: var(--bg-dark-2);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.2);
}
.btn-secondary {
  background: transparent;
  color: var(--ink);
  border: 2px solid var(--rule-2);
}
.btn-secondary:hover {
  border-color: var(--ink);
}

/* inverse variants (on dark bg) */
.btn-inv-primary {
  background: var(--gold-2);
  color: var(--ink);
  border: 2px solid var(--gold-2);
}
.btn-inv-primary:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(201,150,58,0.3);
}
.btn-inv-secondary {
  background: transparent;
  color: rgba(255,255,255,0.8);
  border: 2px solid rgba(255,255,255,0.2);
}
.btn-inv-secondary:hover {
  border-color: rgba(255,255,255,0.6);
  color: #fff;
}

/* ============================================================
   NAV
   ============================================================ */
#nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 999;
  height: var(--nav-h);
  padding: 0 var(--px);
  display: flex;
  align-items: center;
  transition: background var(--t), border-color var(--t), box-shadow var(--t);
  border-bottom: 1px solid transparent;
  background: rgba(248,246,242,0);
}
#nav.scrolled {
  background: rgba(248,246,242,0.93);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--rule);
  box-shadow: 0 1px 24px rgba(0,0,0,0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
}

.nav-logo img {
  height: 36px;
  width: auto;
  object-fit: contain;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}
.nav-links a {
  font-family: var(--font-head);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  position: relative;
  transition: color var(--t);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  height: 1.5px; width: 0;
  background: var(--gold);
  transition: width var(--t);
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.nav-cta {
  font-family: var(--font-head);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.52rem 1.3rem;
  border: 1.5px solid var(--rule-2);
  border-radius: var(--r);
  color: var(--ink);
  transition: all var(--t);
}
.nav-cta:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

/* burger */
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 1001;
}
.nav-burger span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-burger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

#nav-mobile {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 998;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s var(--ease);
}
#nav-mobile.open { opacity: 1; pointer-events: all; }
#nav-mobile a {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  transition: color var(--t);
}
#nav-mobile a:hover { color: var(--ink); }

/* ============================================================
   HERO — split layout
   ============================================================ */
#home {
  min-height: 100svh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
  overflow: hidden;
  background: var(--bg);
}

.hero-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--nav-h) + 5rem) var(--px) 5rem;
  padding-right: 4rem;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-head);
  font-size: 0.67rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.6rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.2s var(--ease) forwards;
}
.hero-kicker-line {
  width: 24px; height: 1.5px;
  background: var(--gold);
}

.hero-h1 {
  max-width: 560px;
  margin-bottom: 1.6rem;
  opacity: 0;
  animation: fadeUp 0.7s 0.35s var(--ease) forwards;
}

.hero-sub {
  max-width: 480px;
  font-size: clamp(0.93rem, 1.2vw, 1rem);
  color: var(--ink-2);
  line-height: 1.9;
  margin-bottom: 2.6rem;
  opacity: 0;
  animation: fadeUp 0.7s 0.5s var(--ease) forwards;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  opacity: 0;
  animation: fadeUp 0.7s 0.65s var(--ease) forwards;
}

/* Image side */
.hero-image {
  position: relative;
  overflow: hidden;
  opacity: 0;
  animation: fadeIn 1.2s 0.4s var(--ease) forwards;
}
.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.88) contrast(1.05);
}
/* Gold overlay tint */
.hero-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(176,124,36,0.12) 0%, transparent 60%);
  pointer-events: none;
}

/* Trust line below hero actions */
.hero-trust {
  margin-top: 2.4rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--rule);
  display: flex;
  align-items: center;
  gap: 1.4rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.7s 0.8s var(--ease) forwards;
}
.hero-trust-item {
  font-size: 0.78rem;
  color: var(--ink-3);
  font-family: var(--font-head);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}
.hero-trust-item::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--gold);
}

/* ============================================================
   ABOUT — dark bg for contrast
   ============================================================ */
#about {
  background: var(--bg-dark);
  color: #fff;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 7vw, 6rem);
  align-items: start;
}

.about-grid h2 { color: #fff; }
.about-grid .kicker { color: var(--gold-2); }
.about-grid p { color: rgba(255,255,255,0.55); }
.about-copy p + p { margin-top: 1.1rem; }

.about-pillars {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.pillar {
  padding: 1.6rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 1.2rem;
  align-items: start;
  transition: background var(--t);
}
.pillar:hover { background: rgba(255,255,255,0.02); }
.pillar-num {
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--gold-2);
  letter-spacing: 0.06em;
  padding-top: 0.25rem;
}
.pillar h3 {
  font-size: 0.97rem;
  color: #fff;
  margin-bottom: 0.35rem;
  font-weight: 600;
}
.pillar p {
  font-size: 0.86rem;
  line-height: 1.75;
  color: rgba(255,255,255,0.45);
}

/* ============================================================
   FOCUS AREAS — light
   ============================================================ */
#focus { background: var(--bg); }

.focus-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: end;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid var(--rule);
}
.focus-header p { font-size: 0.95rem; line-height: 1.85; }

.focus-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--rule);
}

.focus-item {
  display: grid;
  grid-template-columns: 3.5rem 1fr auto;
  gap: 1.5rem;
  align-items: start;
  padding: 2rem 0;
  border-bottom: 1px solid var(--rule);
  transition: background var(--t);
  cursor: default;
}
.focus-item:hover { background: var(--gold-fill); }
.focus-item:hover .fi-num { color: var(--gold); }

.fi-num {
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--ink-4);
  letter-spacing: 0.1em;
  padding-top: 0.3rem;
  transition: color var(--t);
}
.fi-body h3 {
  font-size: 1.05rem;
  color: var(--ink);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}
.fi-body p { font-size: 0.875rem; line-height: 1.85; }
.fi-tag {
  font-family: var(--font-head);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--gold-line);
  border-radius: 4px;
  background: var(--gold-fill);
  white-space: nowrap;
  margin-top: 0.3rem;
  align-self: start;
}

/* ============================================================
   HOW WE WORK — warm alt bg
   ============================================================ */
#process { background: var(--bg-alt); }

.process-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: end;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid var(--rule-2);
}
.process-header p { font-size: 0.95rem; line-height: 1.85; }

.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem 2.5rem;
}

.ps {
  padding: 1.8rem;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: var(--r);
  transition: border-color var(--t), box-shadow var(--t);
}
.ps:hover {
  border-color: var(--gold-line);
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}

.ps-n {
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--rule-2);
  line-height: 1;
  margin-bottom: 1.2rem;
  letter-spacing: -0.02em;
  transition: color var(--t);
}
.ps:hover .ps-n { color: var(--gold-line); }

.ps h3 { font-size: 0.95rem; color: var(--ink); margin-bottom: 0.5rem; }
.ps p  { font-size: 0.855rem; line-height: 1.8; }

/* ============================================================
   WHY BASUS — dark
   ============================================================ */
#why { background: var(--bg-dark); color: #fff; }

.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--r);
  overflow: hidden;
}

.why-cell {
  padding: 2.4rem 2.4rem 2.2rem;
  background: var(--bg-dark-2);
  border-right: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background var(--t);
}
.why-cell:hover { background: var(--bg-dark-3); }
.why-cell:nth-child(even) { border-right: none; }
.why-cell:nth-child(3), .why-cell:nth-child(4) { border-bottom: none; }

.wc-kicker {
  font-family: var(--font-head);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-2);
  display: block;
  margin-bottom: 0.9rem;
}
.why-cell h3 { font-size: 1.05rem; color: #fff; margin-bottom: 0.65rem; font-weight: 600; }
.why-cell p  { font-size: 0.875rem; line-height: 1.85; color: rgba(255,255,255,0.45); }

/* ============================================================
   CONTACT — light
   ============================================================ */
#contact { background: var(--bg); }

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2.5rem, 7vw, 6rem);
  align-items: start;
}

.contact-intro h2 { margin-bottom: 1rem; }
.contact-intro > p { margin-bottom: 2.5rem; }

.contact-form { display: flex; flex-direction: column; gap: 1rem; }

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

.fg { display: flex; flex-direction: column; gap: 0.4rem; }
.fg label {
  font-family: var(--font-head);
  font-size: 0.67rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.fg input, .fg textarea {
  background: #fff;
  border: 1px solid var(--rule-2);
  border-radius: var(--r);
  padding: 0.8rem 1rem;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 0.92rem;
  outline: none;
  transition: border-color var(--t), box-shadow var(--t);
  width: 100%;
  resize: vertical;
}
.fg input::placeholder, .fg textarea::placeholder { color: var(--ink-4); }
.fg input:focus, .fg textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(176,124,36,0.1);
}
.fg textarea { min-height: 140px; }

.form-note {
  font-size: 0.74rem;
  color: var(--ink-4);
  margin-top: 0.3rem;
  line-height: 1.5;
}

/* Info side */
.contact-info { display: flex; flex-direction: column; gap: 1.5rem; padding-top: 0.5rem; }

.ci-label {
  font-family: var(--font-head);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-bottom: 0.7rem;
}

.ci-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.3rem;
  background: var(--bg-alt);
  border: 1px solid var(--rule);
  border-radius: var(--r);
  transition: border-color var(--t);
  text-decoration: none;
  color: inherit;
}
.ci-item:hover { border-color: var(--gold); }

.ci-icon {
  width: 36px; height: 36px;
  background: #fff;
  border: 1px solid var(--rule-2);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.ci-icon svg { width: 15px; height: 15px; color: var(--gold); }
.ci-text small {
  display: block;
  font-size: 0.67rem;
  color: var(--ink-3);
  font-family: var(--font-head);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.15rem;
}
.ci-text strong { font-size: 0.88rem; color: var(--ink); font-weight: 500; }

.ci-note {
  padding: 1.4rem;
  background: var(--bg-alt);
  border: 1px solid var(--rule);
  border-left: 2px solid var(--gold);
  border-radius: var(--r);
}
.ci-note-title {
  display: block;
  font-size: 0.95rem;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 0.65rem;
  line-height: 1.4;
}
.ci-note p { font-size: 0.86rem; line-height: 1.8; color: var(--ink-2); }
.ci-note p + p { margin-top: 0.75rem; }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: var(--bg-dark);
  padding: 2.2rem var(--px);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.footer-logo img {
  height: 30px;
  width: auto;
  object-fit: contain;
  display: block;
}
.footer-copy {
  font-size: 0.76rem;
  color: rgba(255,255,255,0.28);
  text-align: center;
  line-height: 1.8;
}
.footer-social { display: flex; gap: 0.6rem; }
.footer-social a {
  width: 32px; height: 32px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.35);
  transition: all var(--t);
}
.footer-social a:hover {
  border-color: var(--gold-2);
  color: var(--gold-2);
}
.footer-social svg { width: 14px; height: 14px; }

/* ============================================================
   KEYFRAMES
   ============================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: none; }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  #home { grid-template-columns: 1fr; }
  .hero-image { display: none; }
  .hero-text { padding-right: var(--px); min-height: 100svh; }

  .about-grid  { grid-template-columns: 1fr; }
  .focus-header { grid-template-columns: 1fr; gap: 1.5rem; }
  .process-header { grid-template-columns: 1fr; gap: 1.5rem; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; }
  .why-cell:nth-child(even) { border-right: none; }
  .why-cell:nth-child(3) { border-bottom: 1px solid rgba(255,255,255,0.06); }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --px: 1.25rem; --py: 3.5rem; }

  .nav-links, .nav-cta { display: none; }
  .nav-burger { display: flex; }
  #nav-mobile { display: flex; }

  .focus-item { grid-template-columns: 2.5rem 1fr; }
  .fi-tag { display: none; }

  .process-steps { grid-template-columns: 1fr; }

  .why-grid {
    border: none;
    gap: 1px;
  }
  .why-cell { border: 1px solid rgba(255,255,255,0.06) !important; border-radius: 6px; }

  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: center; text-align: center; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .btn { justify-content: center; }
}