/* ── RESET & BASE ─────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

/* ── TOKENS ───────────────────────────────────────────── */
:root {
  --gold:        #C9981A;
  --gold-light:  #E2B733;
  --gold-dark:   #9E7612;
  --charcoal:    #1C1C1C;
  --charcoal-2:  #242424;
  --mid:         #3A3A3A;
  --stone:       #6B6B6B;
  --fog:         #F4F2EE;
  --white:       #FFFFFF;
  --border:      rgba(201,152,26,.22);

  --ff-display: 'Cormorant Garamond', Georgia, serif;
  --ff-cond:    'Barlow Condensed', sans-serif;
  --ff-body:    'Barlow', sans-serif;

  --nav-h: 76px;
  --radius: 4px;
  --shadow-card: 0 6px 30px rgba(0,0,0,.09);
  --shadow-gold: 0 4px 20px rgba(201,152,26,.35);
  --transition: .3s cubic-bezier(.4,0,.2,1);
}

body {
  font-family: var(--ff-body);
  color: var(--charcoal);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a   { text-decoration: none; color: inherit; }
ul  { list-style: none; }

.container {
  width: min(1160px, 92%);
  margin-inline: auto;
}

/* ── UTILITY ──────────────────────────────────────────── */
.gold-line {
  display: block;
  width: 48px; height: 3px;
  background: var(--gold);
  margin-bottom: 1.25rem;
}

.section-label {
  font-family: var(--ff-cond);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: .5rem;
}

.section-title {
  font-family: var(--ff-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--charcoal);
}

.section-title.light { color: var(--white); }

.section-sub {
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--stone);
  max-width: 54ch;
  margin-top: .75rem;
}

.section-sub.light { color: rgba(255,255,255,.6); }

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s var(--transition), transform .65s var(--transition);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }
.reveal-delay-5 { transition-delay: .5s; }
.reveal-delay-6 { transition-delay: .6s; }

/* ── BUTTONS ──────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--ff-cond);
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  border-radius: var(--radius);
  padding: .8rem 1.75rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
}

.btn-gold {
  background: var(--gold);
  color: var(--white);
  border-color: var(--gold);
}
.btn-gold:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
  box-shadow: var(--shadow-gold);
  transform: translateY(-2px);
}

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.6);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-outline-gold {
  background: transparent;
  color: var(--gold);
  border-color: var(--gold);
}
.btn-outline-gold:hover {
  background: var(--gold);
  color: var(--white);
  box-shadow: var(--shadow-gold);
  transform: translateY(-2px);
}


/* ═══════════════════════════════════════════════════════
   NAV
═══════════════════════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition);
}

#navbar.scrolled {
  background: var(--white);
  box-shadow: 0 2px 20px rgba(0,0,0,.1);
}

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

.nav-logo img {
  height: 54px;
  width: auto;
  min-width: 120px;
}

.nav-logo-text {
  display: none;
  font-family: var(--ff-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: .04em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.nav-links a {
  font-family: var(--ff-cond);
  font-size: .9rem;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--white);
  position: relative;
  padding-bottom: 3px;
  transition: color var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--gold);
  transition: width var(--transition);
}

.nav-links a:hover::after { width: 100%; }

#navbar.scrolled .nav-links a { color: var(--charcoal); }
#navbar.scrolled .nav-links a:hover { color: var(--gold); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--white);
  transition: all var(--transition);
}
#navbar.scrolled .hamburger span { background: var(--charcoal); }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: var(--white);
  padding: 1.5rem;
  box-shadow: 0 8px 20px rgba(0,0,0,.1);
  flex-direction: column;
  gap: 1.2rem;
  z-index: 890;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-family: var(--ff-cond);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--charcoal);
  padding: .5rem 0;
  border-bottom: 1px solid var(--fog);
}
.mobile-menu a:hover { color: var(--gold); }
.mobile-menu .btn { width: 100%; justify-content: center; margin-top: .5rem; }


/* ═══════════════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════════════ */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background:
    repeating-linear-gradient(
      -55deg,
      transparent,
      transparent 40px,
      rgba(255,255,255,.012) 40px,
      rgba(255,255,255,.012) 41px
    ),
    linear-gradient(
      135deg,
      rgba(10,10,10,.82) 0%,
      rgba(20,16,6,.75) 50%,
      rgba(28,20,4,.68) 100%
    ),
    url('../assets/paris18-370m2-1.jpg') center center / cover no-repeat;
}

/* Gold geometric accent */
#hero::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 480px; height: 480px;
  background: radial-gradient(circle at center, rgba(201,152,26,.18) 0%, transparent 65%);
  pointer-events: none;
}

/* Bottom diagonal cut */
#hero::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 80px;
  background: var(--white);
  clip-path: polygon(0 100%, 100% 100%, 100% 0);
}

.hero-inner {
  position: relative;
  z-index: 2;
  padding-top: calc(var(--nav-h) + 3rem);
  padding-bottom: 6rem;
}

.hero-eyebrow {
  font-family: var(--ff-cond);
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: .75rem;
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 32px; height: 2px;
  background: var(--gold);
}

.hero-headline {
  font-family: var(--ff-display);
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.08;
  max-width: 14ch;
  margin-bottom: 1.5rem;
}

.hero-headline em {
  font-style: normal;
  color: var(--gold);
}

.hero-sub {
  font-size: 1.1rem;
  font-weight: 300;
  color: rgba(255,255,255,.65);
  max-width: 48ch;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.hero-badge {
  display: flex;
  align-items: center;
  gap: .45rem;
  font-family: var(--ff-cond);
  font-size: .85rem;
  font-weight: 500;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: rgba(255,255,255,.55);
}

.hero-badge svg {
  color: var(--gold);
  flex-shrink: 0;
}

.hero-number {
  position: absolute;
  right: 0; top: 50%;
  transform: translateY(-50%);
  font-family: var(--ff-display);
  font-size: clamp(12rem, 22vw, 20rem);
  font-weight: 700;
  color: rgba(201,152,26,.06);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  letter-spacing: -.05em;
}


/* ═══════════════════════════════════════════════════════
   SERVICES
═══════════════════════════════════════════════════════ */
#services {
  padding: 6rem 0 5rem;
  background: var(--white);
}

.services-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.services-header .gold-line {
  margin-inline: auto;
}

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

.service-card {
  background: var(--white);
  border: 1px solid #E8E5DF;
  border-top: 3px solid transparent;
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
  cursor: default;
}

.service-card:hover {
  border-top-color: var(--gold);
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,.12);
}

.service-icon {
  width: 52px; height: 52px;
  background: var(--fog);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--gold);
  transition: background var(--transition);
}

.service-card:hover .service-icon {
  background: var(--gold);
  color: var(--white);
}

.service-card h3 {
  font-family: var(--ff-cond);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--charcoal);
  margin-bottom: .6rem;
}

.service-card p {
  font-size: .93rem;
  font-weight: 300;
  color: var(--stone);
  line-height: 1.65;
}


/* ═══════════════════════════════════════════════════════
   ABOUT
═══════════════════════════════════════════════════════ */
#about {
  padding: 5.5rem 0;
  background: var(--fog);
  position: relative;
  overflow: hidden;
}

#about::before {
  content: 'SIEB';
  position: absolute;
  right: -1rem;
  bottom: -2rem;
  font-family: var(--ff-display);
  font-size: 18rem;
  font-weight: 700;
  color: rgba(201,152,26,.05);
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

.about-text p {
  font-size: 1rem;
  font-weight: 300;
  color: #444;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.about-text p:last-child { margin-bottom: 0; }

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.stat-box {
  background: var(--white);
  border-left: 4px solid var(--gold);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.stat-number {
  font-family: var(--ff-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  white-space: nowrap;
}

.stat-label {
  font-family: var(--ff-cond);
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--charcoal);
}

.stat-desc {
  font-size: .85rem;
  font-weight: 300;
  color: var(--stone);
  margin-top: .2rem;
}


/* ═══════════════════════════════════════════════════════
   WHY SIEB
═══════════════════════════════════════════════════════ */
#why {
  padding: 5.5rem 0;
  background: var(--charcoal);
  position: relative;
  overflow: hidden;
}

#why::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 400px; height: 400px;
  background: radial-gradient(circle at top left, rgba(201,152,26,.12) 0%, transparent 60%);
  pointer-events: none;
}

.why-header {
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
  z-index: 2;
}

.why-header .gold-line { margin-inline: auto; }

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

.why-item {
  background: var(--charcoal-2);
  padding: 2.5rem 2.25rem;
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  transition: background var(--transition);
}

.why-item:hover { background: #2a2a2a; }

.why-icon {
  width: 44px; height: 44px;
  flex-shrink: 0;
  background: rgba(201,152,26,.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  margin-top: .1rem;
}

.why-item h3 {
  font-family: var(--ff-cond);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: .5rem;
}

.why-item p {
  font-size: .92rem;
  font-weight: 300;
  color: rgba(255,255,255,.5);
  line-height: 1.65;
}

.why-grid .why-item:nth-child(1) { border-right: 1px solid rgba(255,255,255,.04); border-bottom: 1px solid rgba(255,255,255,.04); }
.why-grid .why-item:nth-child(2) { border-bottom: 1px solid rgba(255,255,255,.04); }
.why-grid .why-item:nth-child(3) { border-right: 1px solid rgba(255,255,255,.04); }


/* ═══════════════════════════════════════════════════════
   CONTACT
═══════════════════════════════════════════════════════ */
#contact {
  padding: 5.5rem 0 6rem;
  background: var(--white);
}

.contact-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.contact-header .gold-line { margin-inline: auto; }

.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-form {
  background: var(--white);
  border: 1px solid #E8E5DF;
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: var(--shadow-card);
}

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

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-family: var(--ff-cond);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--charcoal);
  margin-bottom: .4rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .75rem 1rem;
  font-family: var(--ff-body);
  font-size: .95rem;
  font-weight: 300;
  color: var(--charcoal);
  background: var(--fog);
  border: 2px solid transparent;
  border-radius: var(--radius);
  transition: all var(--transition);
  outline: none;
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  background: var(--white);
  border-color: var(--gold);
  box-shadow: 0 0 0 4px rgba(201,152,26,.1);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: #e05353;
  background: #fff8f8;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236B6B6B' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-submit {
  width: 100%;
  justify-content: center;
  padding: .95rem 2rem;
  font-size: 1rem;
}

.form-msg {
  display: none;
  text-align: center;
  padding: 1rem;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: .95rem;
  margin-top: 1rem;
}

.form-msg.success {
  display: block;
  background: #f0faf0;
  color: #2a7a2a;
  border: 1px solid #b8e8b8;
}

.form-msg.error-msg {
  display: block;
  background: #fff0f0;
  color: #b22222;
  border: 1px solid #f0b8b8;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.info-card {
  background: var(--charcoal);
  border-radius: var(--radius);
  padding: 2.25rem;
  color: var(--white);
}

.info-card h3 {
  font-family: var(--ff-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 1.5rem;
}

.info-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.25rem;
}

.info-item:last-child { margin-bottom: 0; }

.info-icon {
  width: 38px; height: 38px;
  flex-shrink: 0;
  background: rgba(201,152,26,.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
}

.info-text strong {
  display: block;
  font-family: var(--ff-cond);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
  margin-bottom: .2rem;
}

.info-text span {
  font-size: .95rem;
  font-weight: 300;
  color: var(--white);
}

.response-badge {
  background: rgba(201,152,26,.12);
  border: 1px solid rgba(201,152,26,.3);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: .75rem;
}

.response-badge svg { color: var(--gold); flex-shrink: 0; }

.response-badge p {
  font-family: var(--ff-cond);
  font-size: .88rem;
  font-weight: 600;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--gold);
}

.response-badge span {
  font-family: var(--ff-body);
  font-size: .8rem;
  font-weight: 300;
  color: rgba(255,255,255,.5);
  letter-spacing: 0;
  text-transform: none;
}


/* ═══════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════ */
footer {
  background: #111111;
  color: rgba(255,255,255,.6);
}

.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 3rem;
  padding: 4rem 0 3rem;
}

.footer-brand img {
  height: 52px;
  width: auto;
  margin-bottom: 1rem;
  filter: brightness(0) invert(1);
  opacity: .7;
}

.footer-brand-name {
  font-family: var(--ff-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: .5rem;
}

.footer-brand p {
  font-size: .88rem;
  font-weight: 300;
  line-height: 1.7;
  max-width: 32ch;
}

.footer-col h4 {
  font-family: var(--ff-cond);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 1.25rem;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: .65rem;
}

.footer-col ul li a {
  font-size: .88rem;
  font-weight: 300;
  color: rgba(255,255,255,.5);
  transition: color var(--transition);
}

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

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  margin-bottom: .75rem;
  font-size: .88rem;
  font-weight: 300;
}

.footer-contact-item svg { color: var(--gold); flex-shrink: 0; margin-top: 2px; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.07);
  padding: 1.25rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .8rem;
  font-weight: 300;
}

.footer-bottom span { color: rgba(255,255,255,.3); }

.footer-bottom a {
  color: rgba(255,255,255,.3);
  transition: color var(--transition);
}
.footer-bottom a:hover { color: var(--gold); }


/* ═══════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .services-grid      { grid-template-columns: repeat(2, 1fr); }
  .about-grid         { grid-template-columns: 1fr; gap: 3rem; }
  .why-grid           { grid-template-columns: 1fr; }
  .contact-grid       { grid-template-columns: 1fr; }
  .footer-main        { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-brand       { grid-column: 1 / -1; }
}

@media (max-width: 680px) {
  :root { --nav-h: 66px; }

  .nav-links,
  .nav-cta  { display: none; }
  .hamburger { display: flex; }

  .services-grid { grid-template-columns: 1fr; }
  .form-row      { grid-template-columns: 1fr; }
  .footer-main   { grid-template-columns: 1fr; }

  .hero-headline { font-size: clamp(2.4rem, 10vw, 3.5rem); }

  .footer-bottom {
    flex-direction: column;
    gap: .5rem;
    text-align: center;
  }
}