/* ============================================================
   36TY CONSULTANCY — Design System v2
   Theme: Midnight Navy · Electric Blue · Teal Accent
   ============================================================ */

:root {
  --bg:           #080c18;
  --bg-alt:       #0d1221;
  --surface:      rgba(255, 255, 255, 0.04);
  --card:         rgba(11, 17, 35, 0.92);
  --border:       rgba(148, 163, 184, 0.12);
  --border-hi:    rgba(14, 165, 233, 0.38);
  --text:         #f0f9ff;
  --muted:        #94a3b8;
  --primary:      #0ea5e9;
  --primary-lt:   #38bdf8;
  --accent:       #06b6d4;
  --accent-lt:    #22d3ee;
  --green:        #10b981;
  --shadow:       0 20px 50px rgba(0, 0, 0, 0.55);
  --shadow-blue:  0 8px 28px rgba(14, 165, 233, 0.22);
  --glow:         0 0 40px rgba(14, 165, 233, 0.16);
  --r-xl:  30px;
  --r-lg:  22px;
  --r-md:  14px;
  --r-sm:  9px;
  --ease:  0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background:
    radial-gradient(ellipse 60% 50% at 15% 15%, rgba(14, 165, 233, 0.11), transparent),
    radial-gradient(ellipse 55% 45% at 85% 80%, rgba(6, 182, 212, 0.09), transparent),
    radial-gradient(ellipse 70% 60% at 50% 0%, rgba(99, 102, 241, 0.07), transparent),
    var(--bg);
  scroll-behavior: smooth;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--ease); }
p { margin: 0 0 1rem; line-height: 1.75; color: var(--muted); }
h1, h2 { font-family: 'Poppins', 'Inter', sans-serif; margin: 0 0 1rem; }

/* ── HEADER ─────────────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  padding: 1rem 0;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(8, 12, 24, 0.84);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.brand__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 13px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-alt);
  border: 1.5px solid var(--border-hi);
  box-shadow: var(--shadow-blue);
}

.brand__logo svg { width: 46px; height: 46px; }

.brand__text strong {
  display: block;
  font-size: 0.95rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--primary-lt), var(--accent-lt));
  -webkit-background-clip: text;
  color: transparent;
}

.brand__text small {
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav__links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

.nav__links a { font-size: 0.875rem; color: var(--muted); }
.nav__links a:hover { color: var(--primary-lt); }

.nav__cta {
  padding: 0.6rem 1.35rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff !important;
  font-weight: 600;
  font-size: 0.875rem;
  box-shadow: 0 8px 24px rgba(14, 165, 233, 0.38);
  transition: box-shadow var(--ease), transform var(--ease);
}

.nav__cta:hover {
  box-shadow: 0 12px 32px rgba(14, 165, 233, 0.55);
  transform: translateY(-1px);
}

.nav__lang {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.nav__lang-sep {
  color: var(--border-hi);
  font-size: 0.75rem;
  user-select: none;
}

.lang-btn {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
  padding: 0.25rem 0.45rem;
  border-radius: var(--r-sm);
  transition: color var(--ease), background var(--ease);
}

.lang-btn:hover { color: var(--primary-lt); }

.lang-btn--active {
  color: var(--primary-lt);
  font-weight: 600;
  background: rgba(14, 165, 233, 0.1);
}

.footer__lang {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 0.25rem;
}

.footer__lang .lang-btn {
  font-size: 0.9rem;
  padding: 0;
  color: var(--muted);
  background: none;
}

.footer__lang .lang-btn--active { color: var(--primary-lt); }
.footer__lang .lang-btn:hover { color: var(--primary-lt); }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 0.35rem;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--ease), opacity var(--ease);
}

.nav__toggle--open span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.nav__toggle--open span:nth-child(2) { opacity: 0; }
.nav__toggle--open span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* ── HERO ────────────────────────────────────────────────── */

.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 7rem 1.5rem 5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  background: rgba(14, 165, 233, 0.1);
  border: 1px solid rgba(14, 165, 233, 0.28);
  color: var(--primary-lt);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero__label::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse 2.2s ease infinite;
}

.hero__content h1 {
  font-size: clamp(2.2rem, 3vw + 1rem, 3.8rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  background: linear-gradient(155deg, #ffffff 30%, var(--primary-lt) 65%, var(--accent-lt) 100%);
  -webkit-background-clip: text;
  color: transparent;
}

.hero__content p { font-size: 1.05rem; max-width: 500px; }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2.2rem;
}

/* ── BUTTONS ─────────────────────────────────────────────── */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.9rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  border: 1.5px solid transparent;
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease), background var(--ease);
  cursor: pointer;
}

.button--primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  box-shadow: 0 12px 32px rgba(14, 165, 233, 0.4);
}

.button--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 42px rgba(14, 165, 233, 0.55);
}

.button--ghost {
  border-color: var(--border-hi);
  background: rgba(14, 165, 233, 0.07);
  color: var(--primary-lt);
}

.button--ghost:hover {
  border-color: var(--primary);
  background: rgba(14, 165, 233, 0.13);
  transform: translateY(-1px);
}

/* ── HERO VISUAL ─────────────────────────────────────────── */

.hero__visual {
  position: relative;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid;
  animation: ring-pulse 4s ease-in-out infinite;
}

.hero__ring:nth-child(1) {
  width: 360px; height: 360px;
  border-color: rgba(14, 165, 233, 0.18);
  animation-delay: 0s;
}

.hero__ring:nth-child(2) {
  width: 270px; height: 270px;
  border-color: rgba(6, 182, 212, 0.28);
  animation-delay: -1.5s;
}

.hero__ring:nth-child(3) {
  width: 180px; height: 180px;
  border-color: rgba(14, 165, 233, 0.38);
  animation-delay: -3s;
}

.hero__card {
  position: relative;
  z-index: 2;
  background: var(--card);
  border: 1px solid var(--border-hi);
  border-radius: var(--r-lg);
  padding: 1.75rem;
  width: 100%;
  max-width: 356px;
  box-shadow: var(--shadow), var(--glow);
  backdrop-filter: blur(12px);
}

.hero__card-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse 2.2s ease infinite;
}

.hero__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
  margin-bottom: 1.5rem;
}

.metric {
  text-align: center;
  padding: 0.85rem 0.4rem;
  border-radius: var(--r-sm);
  background: rgba(14, 165, 233, 0.07);
  border: 1px solid rgba(14, 165, 233, 0.15);
}

.metric__value {
  display: block;
  font-size: 1.4rem;
  font-weight: 700;
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(135deg, var(--primary-lt), var(--accent-lt));
  -webkit-background-clip: text;
  color: transparent;
}

.metric__label {
  display: block;
  font-size: 0.67rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 0.2rem;
}

.hero__bar { margin-bottom: 1.25rem; }

.hero__bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.76rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.hero__bar-track {
  height: 5px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.hero__bar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  width: 94%;
}

.hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.hero__tag {
  padding: 0.28rem 0.72rem;
  border-radius: 999px;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  color: var(--accent-lt);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

/* ── STATS STRIP ─────────────────────────────────────────── */

.stats {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}

.stats__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.stat { text-align: center; }

.stat__value {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(135deg, var(--primary-lt), var(--accent-lt));
  -webkit-background-clip: text;
  color: transparent;
}

.stat__label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.25rem;
}

/* ── FEATURES / SERVICES ─────────────────────────────────── */

.features {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-label {
  display: inline-block;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 0.65rem;
}

.section-header h2 {
  font-size: clamp(1.8rem, 2.5vw + 0.5rem, 2.5rem);
  background: linear-gradient(155deg, #fff 40%, var(--primary-lt));
  -webkit-background-clip: text;
  color: transparent;
}

.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  margin-bottom: 2.5rem;
}

.feature__text {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow);
  transition: border-color var(--ease), box-shadow var(--ease);
}

.feature__text:hover {
  border-color: var(--border-hi);
  box-shadow: var(--shadow), var(--glow);
}

.feature__text h2 {
  font-size: 1.7rem;
  line-height: 1.25;
  background: linear-gradient(135deg, #fff 40%, var(--primary-lt));
  -webkit-background-clip: text;
  color: transparent;
}

.feature__tags {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
}

.feature__visual {
  min-height: 340px;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.feature__visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(8, 12, 24, 0.62), rgba(14, 165, 233, 0.12) 100%);
}

.feature__visual--one {
  background: url('https://images.unsplash.com/photo-1555066931-4365d14bab8c?auto=format&fit=crop&w=1200&q=80') center/cover;
}

.feature__visual--two {
  background: url('https://images.unsplash.com/photo-1553877522-43269d4ea984?auto=format&fit=crop&w=1200&q=80') center/cover;
}

.feature__visual--three {
  background: url('https://images.unsplash.com/photo-1551288049-bebda4e38f71?auto=format&fit=crop&w=1200&q=80') center/cover;
}

.feature__visual--four {
  background: url('https://images.unsplash.com/photo-1544197150-b99a580bb7a8?auto=format&fit=crop&w=1200&q=80') center/cover;
}

/* ── CAREERS ─────────────────────────────────────────────── */

.careers {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.careers__inner {
  display: grid;
  grid-template-columns: 2fr 1fr;
  align-items: center;
  gap: 2.5rem;
  padding: 3.5rem;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.13), rgba(6, 182, 212, 0.09));
  border: 1px solid var(--border-hi);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow), var(--glow);
}

.careers__content h2 {
  font-size: 2.1rem;
  background: linear-gradient(135deg, #fff, var(--primary-lt));
  -webkit-background-clip: text;
  color: transparent;
}

.careers__badge {
  justify-self: end;
  padding: 1rem 1.6rem;
  border-radius: var(--r-md);
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.32);
  color: #34d399;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  font-weight: 600;
  text-align: center;
}

/* ── CONTACT ─────────────────────────────────────────────── */

.contact {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact__cta {
  background: var(--card);
  border-radius: var(--r-xl);
  padding: 3rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.contact__cta h2 {
  font-size: 1.9rem;
  background: linear-gradient(135deg, #fff 40%, var(--primary-lt));
  -webkit-background-clip: text;
  color: transparent;
}

.contact__info {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.contact__info-item {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.contact__info-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--r-sm);
  background: rgba(14, 165, 233, 0.1);
  border: 1px solid rgba(14, 165, 233, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.95rem;
}

.contact__info-item a { color: var(--muted); }
.contact__info-item a:hover { color: var(--primary-lt); }

.quote-form {
  background: var(--card);
  border-radius: var(--r-xl);
  padding: 2.5rem;
  border: 1px solid var(--border-hi);
  box-shadow: var(--shadow), var(--glow);
  display: grid;
  gap: 1.2rem;
}

.form__title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.15rem;
}

.form__row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form__row label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary-lt);
  font-weight: 500;
}

.form__row input,
.form__row textarea {
  padding: 0.85rem 1rem;
  border-radius: var(--r-sm);
  border: 1.5px solid var(--border);
  background: rgba(8, 12, 24, 0.9);
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--ease), box-shadow var(--ease);
}

.form__row input::placeholder,
.form__row textarea::placeholder {
  color: rgba(148, 163, 184, 0.45);
}

.form__row input:focus,
.form__row textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.16);
}

/* ── FOOTER ──────────────────────────────────────────────── */

.footer {
  background: rgba(8, 12, 24, 0.98);
  border-top: 1px solid var(--border);
  padding: 4rem 1.5rem;
  margin-top: 2rem;
}

.footer__brand {
  max-width: 1200px;
  margin: 0 auto 2.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.footer__brand p {
  color: var(--muted);
  margin: 0;
  font-size: 0.875rem;
}

.footer__links {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2rem;
}

.footer__links strong {
  display: block;
  color: var(--primary-lt);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 1rem;
  font-size: 0.75rem;
}

.footer__links a {
  display: block;
  margin-bottom: 0.6rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer__links a:hover { color: var(--primary-lt); }

.language-select select {
  width: 100%;
  padding: 0.6rem 0.85rem;
  border-radius: var(--r-sm);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}

.footer__legal {
  max-width: 1200px;
  margin: 2.5rem auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.8rem;
  color: rgba(148, 163, 184, 0.5);
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.footer__legal a { color: inherit; }
.footer__legal a:hover { color: var(--primary-lt); }

/* ── ANIMATIONS ──────────────────────────────────────────── */

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.55; transform: scale(1.5); }
}

@keyframes ring-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%       { transform: scale(1.05); opacity: 0.55; }
}

/* ── RESPONSIVE ──────────────────────────────────────────── */

@media (max-width: 1024px) {
  .hero, .contact { grid-template-columns: 1fr; }
  .hero__visual { min-height: 340px; }
  .feature { grid-template-columns: 1fr; }
  .feature--left-image .feature__visual { order: -1; }
  .careers__inner { grid-template-columns: 1fr; text-align: center; }
  .careers__badge { justify-self: center; }
  .stats__inner { grid-template-columns: repeat(2, 1fr); }
  .footer__links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  .site-header { padding: 0.875rem 0; }

  .nav__links {
    position: fixed;
    inset: 0;
    background: rgba(8, 12, 24, 0.97);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    transform: translateY(-100%);
    transition: transform var(--ease);
    z-index: 998;
  }

  .nav__links--open { transform: translateY(0); }
  .nav__toggle { display: flex; }
  .hero { padding-top: 5rem; padding-bottom: 3rem; }
  .hero__card { max-width: 100%; }
  .features { padding: 3rem 1.5rem; }
  .contact { padding-top: 3rem; }
  .footer__links { grid-template-columns: 1fr; text-align: center; }
  .footer__brand { justify-content: center; flex-direction: column; text-align: center; }
  .footer__legal { justify-content: center; }
}

@media (max-width: 540px) {
  .hero { padding-top: 4rem; }
  .hero__actions { flex-direction: column; }
  .hero__actions .button { width: 100%; }
  .stats__inner { grid-template-columns: repeat(2, 1fr); }
  .feature__text { padding: 1.75rem; }
  .careers__inner { padding: 2rem; }
  .quote-form { padding: 1.75rem; }
  .contact__cta { padding: 2rem; }
}