/* ========== SILVERSTONES — DESIGN SYSTEM ========== */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=Inter:wght@300;400;500;600&display=swap');

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

/* Prevent ALL images from ever exceeding their container */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
  /* prevents horizontal scroll at root */
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--navy-deep);
  color: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
  width: 100%;
}

/* ─── DESIGN TOKENS ────────────────────────────── */
:root {
  --navy-deep: #080c18;
  --navy-dark: #0d1421;
  --navy-mid: #111927;
  --navy-light: #182236;
  --gold: #c9a84c;
  --gold-light: #e2c06e;
  --gold-dim: #8a6d2f;
  --silver: #a8b8cc;
  --silver-light: #d0dce8;
  --white: #f0f4f8;
  --text-muted: #7c8fa3;
  --border: rgba(201, 168, 76, 0.18);
  --glass-bg: rgba(13, 20, 33, 0.72);
  --glass-border: rgba(201, 168, 76, 0.22);
  --gradient-gold: linear-gradient(135deg, #c9a84c 0%, #e2c06e 60%, #9a7530 100%);
  --section-pad: 100px 0;
  --radius: 12px;
  --transition: 0.35s cubic-bezier(.4, 0, .2, 1);
}

/* ─── TYPOGRAPHY ───────────────────────────────── */
h1,
h2,
h3 {
  font-family: 'Playfair Display', serif;
}

h1 {
  font-size: clamp(1.8rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.15;
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.8rem);
  font-weight: 600;
  line-height: 1.2;
}

h3 {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 600;
}

p {
  color: var(--silver);
  font-size: .95rem;
  line-height: 1.8;
}

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

/* ─── LAYOUT CONTAINER ─────────────────────────── */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 40px);
  position: relative;
  z-index: 2;
}

/* ─── NAVBAR ───────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1200;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(8, 12, 24, 0.9);
  border-bottom: 1px solid rgba(201, 168, 76, 0.1);
  transition: background var(--transition);
}

.nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  padding: 0 clamp(14px, 3vw, 32px);
  gap: 12px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.nav-logo img {
  height: 38px;
  width: auto;
}

.nav-logo-text {
  font-family: 'Playfair Display', serif;
  font-size: 1.15rem;
  font-weight: 700;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: .04em;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  flex: 1;
  justify-content: center;
}

.nav-links a {
  font-size: .85rem;
  font-weight: 500;
  color: var(--silver-light);
  letter-spacing: .04em;
  transition: color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--gold-light);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 3px 5px;
}

.lang-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 4px 9px;
  border-radius: 16px;
  transition: all var(--transition);
}

.lang-btn.active {
  background: var(--gradient-gold);
  color: var(--navy-deep);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
  flex-shrink: 0;
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--silver-light);
  border-radius: 2px;
  transition: all var(--transition);
  display: block;
}

/* ─── MOBILE MENU OVERLAY ──────────────────────── */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(8, 12, 24, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  z-index: 1100;
  padding: 80px 24px 40px;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  font-size: 1.5rem;
  font-family: 'Playfair Display', serif;
  color: var(--white);
  text-align: center;
  padding: 8px 0;
  border-bottom: 1px solid rgba(201, 168, 76, 0.12);
  width: 100%;
  max-width: 280px;
}

.mobile-lang {
  margin-top: 24px;
  display: flex;
  gap: 12px;
}

/* ─── HERO SECTION ─────────────────────────────── */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding: 100px 16px 80px;
  background: url('images/hero_bg.png') center/cover no-repeat, var(--navy-deep);
}

#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
      rgba(8, 12, 24, 0.90) 0%,
      rgba(8, 12, 24, 0.70) 50%,
      rgba(8, 12, 24, 0.85) 100%);
}

.hero-bg,
.hero-overlay {
  display: none;
}

/* kept in HTML but hidden via CSS */

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 0 8px;
}

/* HERO LOGO (large diamond) — must be constrained */
.hero-logo {
  max-width: min(280px, 55vw);
  width: 100%;
  margin: 0 auto 28px;
}

.hero-tagline {
  display: block;
  font-size: clamp(.72rem, 2.2vw, .85rem);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}

.hero-title {
  margin-bottom: 20px;
  color: var(--white);
  word-break: break-word;
  overflow-wrap: break-word;
}

.hero-title span {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  color: var(--silver-light);
  font-size: clamp(.88rem, 2.5vw, 1rem);
  max-width: 540px;
  margin: 0 auto 36px;
  overflow-wrap: break-word;
}

.hero-scroll {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin-top: 32px;
  color: var(--text-muted);
  font-size: .78rem;
  letter-spacing: .1em;
}

.hero-scroll svg {
  width: 18px;
  height: 18px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: var(--gradient-gold);
  color: var(--navy-deep);
  font-weight: 600;
  font-size: .88rem;
  border-radius: 4px;
  text-transform: uppercase;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-ghost {
  padding: 14px 32px;
  background: transparent;
  color: var(--silver-light);
  font-weight: 500;
  font-size: .88rem;
  border-radius: 4px;
  text-transform: uppercase;
  border: 1px solid var(--border);
  transition: all var(--transition);
  cursor: pointer;
  white-space: nowrap;
}

/* ─── HERO STATS (desktop) ─────────────────────── */
.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 48px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-stat .number {
  font-family: 'Playfair Display', serif;
  font-size: 1.8rem;
  font-weight: 700;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat .label {
  font-size: .75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}

/* ─── SECTIONS COMMON ──────────────────────────── */
#mission,
#who-we-are,
#philosophy,
#team,
#investments,
#contacts,
#directions {
  padding: var(--section-pad);
}

.section-label {
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .78rem;
  margin-bottom: 10px;
  display: block;
}

.gold-line,
.gold-divider {
  width: 40px;
  height: 2px;
  background: var(--gold);
  margin: 20px 0;
}

.section-subtitle {
  color: var(--silver);
  max-width: 640px;
}

/* ─── MISSION ──────────────────────────────────── */
#mission {
  background: var(--navy-dark);
}

.mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.mission-image-side {
  position: relative;
}

.mission-image-side img {
  width: 100%;
  border-radius: var(--radius);
  height: 460px;
  object-fit: cover;
}

.mission-badge {
  position: absolute;
  bottom: 20px;
  left: -16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  padding: 18px;
  border-radius: var(--radius);
  max-width: 220px;
}

/* ─── WHO WE ARE ────────────────────────────────── */
#who-we-are {
  background: var(--navy-mid);
}

.who-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.who-card {
  background: var(--navy-light);
  border: 1px solid var(--border);
  padding: 28px;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.who-card:hover {
  transform: translateY(-4px);
  border-color: var(--gold);
}

/* ─── PHILOSOPHY ────────────────────────────────── */
#philosophy {
  background: var(--navy-deep);
}

.phil-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.phil-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 28px;
  border-radius: var(--radius);
  text-align: center;
}

/* ─── TEAM ──────────────────────────────────────── */
#team {
  background: var(--navy-dark);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.team-card {
  background: var(--navy-light);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

/* ALEXEY's actual photo */
.team-photo {
  width: 100%;
  height: 280px;
  object-fit: cover;
  object-position: center 45%;
  display: block;
}

.team-photo-placeholder {
  width: 100%;
  height: 240px;
  background: #1a2233;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 10px;
  color: var(--text-muted);
  font-size: .85rem;
}

.cs-icon {
  font-size: 2rem;
}

.team-info {
  padding: 22px;
}

.team-name {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 6px;
}

.team-role {
  font-size: .78rem;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 12px;
}

.team-bio {
  font-size: .84rem;
  line-height: 1.7;
}

/* ─── DIRECTIONS ────────────────────────────────── */
#directions {
  background: var(--navy-mid);
}

.directions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.direction-card {
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
}

.direction-card:hover {
  border-color: var(--gold-dim);
  transform: translateY(-3px);
}

.direction-num {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  color: var(--gold-dim);
  margin-bottom: 12px;
}

.direction-tag {
  display: inline-block;
  margin-top: 14px;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--gold);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 12px;
}

/* ─── CONTACTS ──────────────────────────────────── */
#contacts {
  background: var(--navy-dark);
}

.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 56px;
  align-items: start;
  margin-top: 40px;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-icon-box {
  width: 46px;
  height: 46px;
  background: rgba(201, 168, 76, .1);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-label {
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 3px;
}

.contact-value {
  font-size: .95rem;
  color: var(--white);
  font-weight: 500;
}

.contact-value a {
  color: var(--white);
  transition: color var(--transition);
}

.contact-value a:hover {
  color: var(--gold-light);
}

.contact-form {
  background: var(--navy-mid);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: .78rem;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--silver);
  margin-bottom: 7px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(8, 12, 24, .6);
  border: 1px solid rgba(168, 184, 204, .15);
  border-radius: 6px;
  padding: 12px 14px;
  color: var(--white);
  font-family: 'Inter', sans-serif;
  font-size: .88rem;
  outline: none;
  transition: border-color var(--transition);
  appearance: none;
  -webkit-appearance: none;
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--gold-dim);
}

.btn-submit {
  width: 100%;
  padding: 14px;
  background: var(--gradient-gold);
  border: none;
  color: var(--navy-deep);
  font-weight: 600;
  cursor: pointer;
  border-radius: 4px;
  font-family: 'Inter', sans-serif;
  font-size: .9rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-top: 6px;
}

/* ─── FOOTER ────────────────────────────────────── */
footer {
  padding: 56px 0 28px;
  background: var(--navy-deep);
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 36px;
  align-items: flex-start;
}

.footer-brand {
  max-width: 280px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-logo img {
  height: 34px;
}

.footer-logo-text {
  font-family: 'Playfair Display', serif;
  font-size: 1rem;
  font-weight: 700;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-desc {
  font-size: .84rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.footer-links-col h5 {
  font-size: .74rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--gold);
  margin-bottom: 14px;
  font-family: 'Inter', sans-serif;
}

.footer-links-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer-links-col ul li a {
  font-size: .84rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-links-col ul li a:hover {
  color: var(--silver-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .06);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: .8rem;
  color: var(--text-muted);
}

.footer-policy a {
  font-size: .8rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-policy a:hover {
  color: var(--gold-light);
}

/* ─── ANIMATIONS ────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

.reveal-delay-1 {
  transition-delay: .1s;
}

.reveal-delay-2 {
  transition-delay: .2s;
}

.reveal-delay-3 {
  transition-delay: .3s;
}

.reveal-delay-4 {
  transition-delay: .4s;
}

/* ═══════════════════════════════════════════════════
   RESPONSIVE — TABLET  (≤ 960px)
═══════════════════════════════════════════════════ */
@media (max-width: 960px) {
  :root {
    --section-pad: 80px 0;
  }

  /* Hide desktop nav links, show hamburger */
  .nav-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  /* Hamburger → X animation */
  .hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .hamburger.open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
  }

  .hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .mission-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .who-cards {
    grid-template-columns: 1fr 1fr;
  }

  .phil-pillars {
    grid-template-columns: 1fr 1fr;
  }

  .team-grid {
    grid-template-columns: 1fr 1fr;
  }

  .directions-grid {
    grid-template-columns: 1fr;
  }

  .contacts-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* ═══════════════════════════════════════════════════
   RESPONSIVE — MOBILE  (≤ 600px)
═══════════════════════════════════════════════════ */
@media (max-width: 600px) {
  :root {
    --section-pad: 60px 0;
  }

  /* ── Navbar ── */
  .nav-inner {
    height: 62px;
    padding: 0 14px;
  }

  .nav-logo-text {
    display: none;
  }

  /* hide text to save space */
  .nav-logo img {
    height: 34px;
  }

  /* ── Hero ── */
  #hero {
    padding: 88px 14px 60px;
  }

  .hero-logo {
    max-width: 52vw;
    margin-bottom: 20px;
  }

  .hero-tagline {
    font-size: .7rem;
    letter-spacing: .14em;
  }

  h1 {
    font-size: clamp(1.6rem, 7vw, 2.2rem);
  }

  .hero-title {
    padding: 0;
  }

  .hero-desc {
    font-size: .88rem;
    margin-bottom: 28px;
  }

  .btn-primary {
    width: 100%;
    justify-content: center;
    max-width: 320px;
  }

  .hero-scroll {
    margin-top: 20px;
  }

  .hero-stats {
    gap: 24px;
    margin-top: 36px;
  }

  .hero-stat .number {
    font-size: 1.5rem;
  }

  /* ── Mission ── */
  .mission-image-side img {
    height: 220px;
  }

  .mission-badge {
    position: relative;
    left: auto;
    bottom: auto;
    margin: 16px auto 0;
    max-width: 200px;
  }

  /* ── Grids — all single column ── */
  .who-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .phil-pillars {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .team-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 40px auto 0;
  }

  .directions-grid {
    grid-template-columns: 1fr;
  }

  /* ── Team photo ── */
  .team-photo {
    height: 240px;
    object-position: center 45%;
  }

  /* ── Contacts form ── */
  .contact-form {
    padding: 24px 16px;
  }

  /* ── Footer ── */
  .footer-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 28px;
  }

  .footer-brand {
    max-width: 100%;
  }

  .footer-logo {
    justify-content: center;
  }

  .footer-links {
    flex-direction: row;
    justify-content: center;
    gap: 32px;
    width: 100%;
  }

  .footer-links-col ul {
    align-items: center;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }
}

/* ═══════════════════════════════════════════════════
   RESPONSIVE — VERY SMALL (≤ 380px)
═══════════════════════════════════════════════════ */
@media (max-width: 380px) {
  .hero-logo {
    max-width: 60vw;
  }

  .btn-primary {
    padding: 12px 20px;
    font-size: .82rem;
  }

  .footer-links {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
}