/* =========================================================================
   TaBa — Global Stylesheet (modular CSS, dark/corporate, gray + orange)
   ========================================================================= */

:root {
  --bg: #0a0b0d;
  --bg-alt: #101216;
  --surface: #15171c;
  --surface-2: #1b1e24;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);

  --text: #eef0f2;
  --text-muted: #a4a9b1;
  --text-faint: #6c7178;

  --accent: #ff8a3d;
  --accent-2: #ff6a1a;
  --accent-soft: rgba(255, 138, 61, 0.14);
  --accent-border: rgba(255, 138, 61, 0.35);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.45);

  --header-h: 76px;
  --container-w: 1180px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul { list-style: none; margin: 0; padding: 0; }

.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

section.section {
  position: relative;
  padding: 120px 0 100px;
  scroll-margin-top: var(--header-h);
  overflow: hidden;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 14px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--accent);
  display: inline-block;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.9rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 28px;
  color: var(--text);
}

.section-lede {
  max-width: 780px;
  color: var(--text-muted);
  font-size: 1.08rem;
  margin: 0 auto 56px;
  text-align: center;
}

/* Ambient glow accents behind sections */
.bg-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.bg-glow::before {
  content: "";
  position: absolute;
  width: 640px;
  height: 640px;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.16;
}
.bg-glow--about::before { background: var(--accent); top: -220px; right: -160px; }
.bg-glow--contact::before { background: var(--accent); bottom: -260px; left: -160px; }

/* =========================================================================
   HEADER / NAVBAR
   ========================================================================= */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 100;
  display: flex;
  align-items: center;
  background: rgba(10, 11, 13, 0.55);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(10, 11, 13, 0.85);
  border-bottom-color: var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand { display: flex; align-items: center; height: 100%; }
.brand-logo {
  height: 44px;
  width: auto;
  border-radius: 6px;
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 40px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-link {
  position: relative;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 8px 0;
  transition: color .2s;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width .25s var(--ease);
}
.nav-link:hover { color: var(--text); }
.nav-link:hover::after,
.nav-link.is-active::after { width: 100%; }
.nav-link.is-active { color: var(--text); }

.lang-switch {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
}
.lang-btn {
  border: none;
  background: transparent;
  color: var(--text-faint);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 4px 8px;
  border-radius: 999px;
  cursor: pointer;
  transition: color .2s, background .2s;
}
.lang-btn.is-active {
  color: var(--bg);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.lang-sep { color: var(--border-strong); font-size: 0.75rem; }

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  padding: 0;
}
.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 0 auto;
  background: var(--text);
  border-radius: 2px;
  transition: transform .25s var(--ease), opacity .2s;
}
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================================
   MOBILE MENU (slide-in from right)
   ========================================================================= */

.mobile-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 150;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s var(--ease);
}
.mobile-backdrop.is-open { opacity: 1; pointer-events: auto; }

.mobile-menu {
  position: fixed;
  top: 0; right: 0;
  height: 100%;
  width: min(320px, 82vw);
  background: var(--bg-alt);
  border-left: 1px solid var(--border);
  z-index: 160;
  transform: translateX(100%);
  transition: transform .35s var(--ease);
  display: flex;
  flex-direction: column;
  padding: 22px 26px 32px;
}
.mobile-menu.is-open { transform: translateX(0); }

.mobile-menu-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}
.mobile-menu-logo { height: 36px; border-radius: 6px; }
.mobile-close {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 1.4rem;
  line-height: 1;
  width: 36px; height: 36px;
  border-radius: 10px;
  cursor: pointer;
}

.mobile-nav-list { display: flex; flex-direction: column; gap: 4px; margin-bottom: 28px; }
.mobile-nav-link {
  display: block;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  padding: 14px 4px;
  border-bottom: 1px solid var(--border);
  transition: color .2s, padding-left .2s;
}
.mobile-nav-link.is-active {
  color: var(--accent);
  padding-left: 12px;
  border-left: 3px solid var(--accent);
}
.mobile-lang-switch { align-self: flex-start; }

/* =========================================================================
   ABOUT SECTION
   ========================================================================= */

.about-text {
  position: relative;
  z-index: 1;
  max-width: 820px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 56px;
}
.about-text p {
  margin: 0;
  color: var(--text-muted);
  font-size: 1.06rem;
}
.about-text p:first-child {
  color: var(--text);
  font-size: 1.2rem;
  font-weight: 500;
}

.about-banner {
  position: relative;
  z-index: 1;
  margin: 0 0 64px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
}
.about-banner img { width: 100%; height: auto; }

.gallery-title {
  position: relative;
  z-index: 1;
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 28px;
  color: var(--text);
}

.about-gallery {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.gallery-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 4 / 3;
  background: var(--surface);
}
.gallery-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease);
}
.gallery-card:hover img { transform: scale(1.07); }
.gallery-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,11,13,0) 40%, rgba(10,11,13,0.85) 100%);
}
.gallery-caption {
  position: absolute;
  left: 16px; bottom: 14px;
  z-index: 1;
  font-size: 0.92rem;
  font-weight: 600;
  color: #fff;
}

/* =========================================================================
   PARTNERS SECTION
   ========================================================================= */

.partners-section {
  background: var(--bg-alt);
}
.partners-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.partners-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.14;
  filter: grayscale(30%);
}
.partners-bg-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(760px 420px at 15% 10%, rgba(255,138,61,0.10), transparent 60%),
    linear-gradient(180deg, var(--bg-alt) 0%, rgba(16,18,22,0.92) 40%, var(--bg-alt) 100%);
}

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

.partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  max-width: 980px;
  margin: 0 auto;
}

.partner-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 18px;
  transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
}
.partner-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-border);
  box-shadow: var(--shadow-md);
}

.partner-logo-box {
  width: 100%;
  height: 110px;
  border-radius: var(--radius-sm);
  background: #f4f5f7;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px 20px;
}
.partner-logo-box img { max-height: 100%; width: auto; object-fit: contain; }

.partner-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin: 0;
  min-height: 48px;
  display: flex;
  align-items: center;
}

.partner-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--accent);
  border: 1px solid var(--accent-border);
  background: var(--accent-soft);
  padding: 12px 20px;
  border-radius: 999px;
  transition: background .2s, color .2s, transform .2s;
  margin-top: auto;
}
.partner-cta:hover {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #10110f;
  transform: translateY(-2px);
}
.partner-cta--disabled {
  color: var(--text-faint);
  border-color: var(--border);
  background: transparent;
  cursor: not-allowed;
  pointer-events: none;
}

/* =========================================================================
   CONTACT SECTION
   ========================================================================= */

.contact-section { text-align: center; }
.contact-section .section-title { text-align: center; }

.contact-card {
  position: relative;
  z-index: 1;
  max-width: 560px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 44px 36px;
  box-shadow: var(--shadow-md);
}

.contact-subtitle {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0 0 28px;
  color: var(--accent);
}

.contact-row {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  text-align: left;
  padding: 18px 0;
  border-top: 1px solid var(--border);
}
.contact-row:first-of-type { border-top: none; }

.contact-icon {
  flex: 0 0 auto;
  width: 42px; height: 42px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-row-text { display: flex; flex-direction: column; gap: 4px; }
.contact-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.contact-row-text a {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  transition: color .2s;
}
.contact-row-text a:hover { color: var(--accent); }

/* =========================================================================
   FOOTER
   ========================================================================= */

.site-footer {
  background: #08090b;
  border-top: 1px solid var(--border);
  padding-top: 56px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 36px;
  padding-bottom: 40px;
}

.footer-brand { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; }
.footer-logo { height: 38px; width: auto; border-radius: 6px; }
.footer-tagline {
  margin: 0;
  color: var(--text-faint);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
}

.footer-links, .footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links-title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 4px;
}
.footer-links a, .footer-contact a {
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: color .2s;
}
.footer-links a:hover, .footer-contact a:hover { color: var(--accent); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 24px;
  text-align: center;
}
.footer-bottom p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-faint);
}

/* =========================================================================
   RESPONSIVE
   ========================================================================= */

@media (min-width: 768px) {
  .nav-desktop { display: flex; }
  .hamburger { display: none; }

  .about-gallery { grid-template-columns: repeat(4, 1fr); }

  .partner-grid { grid-template-columns: repeat(3, 1fr); }

  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
}

@media (max-width: 767px) {
  section.section { padding: 96px 0 72px; }
  .partner-grid { gap: 20px; }
}

@media (min-width: 1024px) {
  .footer-inner { padding-bottom: 48px; }
}