/* =========================================
   LAYOUT
   ========================================= */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-4), 5vw, var(--space-16));
}
.container--narrow { max-width: var(--content-default); }

/* =========================================
   NAVIGATION
   ========================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-slow), box-shadow var(--transition-slow), transform 0.35s cubic-bezier(0.16,1,0.3,1);
}
.site-header--scrolled { border-bottom-color: var(--color-divider); box-shadow: var(--shadow-sm); }
.site-header--hidden { transform: translateY(-100%); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-3);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}
.nav__logo-svg { width: 38px; height: 38px; flex-shrink: 0; }
.nav__logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.nav__logo-name {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--color-text);
}
.nav__logo-tagline {
  font-size: var(--text-xs);
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
}
.nav__links a {
  display: inline-block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  border-radius: var(--radius-md);
  white-space: nowrap;
}
.nav__links a:hover, .nav__links a[aria-current="page"] {
  color: var(--color-text);
  background: var(--color-surface-offset);
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: var(--color-primary);
  color: white !important;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: -0.01em;
}
.nav__cta:hover { background: var(--color-primary-hover) !important; color: white !important; transform: translateY(-1px); box-shadow: var(--shadow-md); }

.nav__controls { display: flex; align-items: center; gap: var(--space-2); }
.theme-toggle {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: var(--radius-md);
  color: var(--color-text-muted);
}
.theme-toggle:hover { background: var(--color-surface-offset); color: var(--color-text); }

.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  padding: var(--space-2);
}
.nav__hamburger span { display: block; height: 2px; background: currentColor; border-radius: 2px; transition: transform 0.25s, opacity 0.25s; }
.nav__hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__mobile {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4);
  border-top: 1px solid var(--color-divider);
  background: var(--color-surface);
}
.nav__mobile.is-open { display: flex; }
.nav__mobile a {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  border-radius: var(--radius-md);
}
.nav__mobile a:hover, .nav__mobile a[aria-current="page"] { color: var(--color-text); background: var(--color-surface-offset); }
.nav__mobile .nav__cta { margin-top: var(--space-2); justify-content: center; }

@media (max-width: 860px) {
  .nav__links, .nav__desktop-cta { display: none; }
  .nav__hamburger { display: flex; }
}

/* =========================================
   BUTTONS
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  font-size: var(--text-sm);
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  letter-spacing: -0.01em;
}
.btn--primary { background: var(--color-primary); color: white; border-color: var(--color-primary); }
.btn--primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); color: white; transform: translateY(-2px); box-shadow: var(--shadow-lg); }

.btn--accent { background: var(--color-accent); color: var(--color-dark-bg); border-color: var(--color-accent); }
.btn--accent:hover { background: var(--color-accent-hover); border-color: var(--color-accent-hover); color: var(--color-dark-bg); transform: translateY(-2px); box-shadow: var(--shadow-glow); }

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

.btn--ghost { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn--ghost:hover { background: var(--color-surface-offset); border-color: var(--color-text-muted); }

.btn--ghost-light { background: transparent; color: rgba(255,255,255,0.85); border-color: rgba(255,255,255,0.3); }
.btn--ghost-light:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.6); color: white; }

.btn--lg { padding: var(--space-4) var(--space-10); font-size: var(--text-base); }

/* =========================================
   SECTION LAYOUT
   ========================================= */
.section { padding-block: clamp(var(--space-12), 8vw, var(--space-32)); }
.section--dark { background: var(--color-dark-bg); }
.section--surface { background: var(--color-surface); }
.section--tinted { background: var(--color-surface-2); }

.section__eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}
.section--dark .section__eyebrow { color: var(--color-accent); }

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}
.section--dark .section__title { color: var(--color-dark-text); }

.section__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.75;
  max-width: 58ch;
}
.section--dark .section__subtitle { color: var(--color-dark-text-muted); }

.section__header { margin-bottom: var(--space-12); max-width: 640px; }
.section__header--center { text-align: center; margin-inline: auto; }
.section__header--center .section__subtitle { margin-inline: auto; }

/* =========================================
   SERVICE CARDS
   ========================================= */
.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive), border-color var(--transition-interactive);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition-interactive);
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-xl); border-color: var(--color-primary-highlight); }
.service-card:hover::before { opacity: 1; }

.service-card__icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-xl);
  background: var(--color-primary-highlight);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}
[data-theme="dark"] .service-card__icon { background: var(--color-primary-highlight); color: var(--color-primary); }

.service-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.01em;
}
.service-card__body {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  flex: 1;
}
.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  margin-top: auto;
}
.service-card__link:hover { color: var(--color-primary-hover); gap: var(--space-2); }

/* =========================================
   GRIDS
   ========================================= */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }

@media (max-width: 1024px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* =========================================
   TESTIMONIALS
   ========================================= */
.testimonial {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  position: relative;
}
.testimonial::before {
  content: '\201C';
  font-family: var(--font-display);
  font-size: 6rem;
  line-height: 1;
  color: var(--color-accent);
  opacity: 0.2;
  position: absolute;
  top: var(--space-4); left: var(--space-6);
}
.testimonial__text {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: var(--space-6);
  padding-top: var(--space-8);
}
.testimonial__author { display: flex; align-items: center; gap: var(--space-4); }
.testimonial__avatar {
  width: 48px; height: 48px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  color: white;
  font-size: var(--text-sm);
  flex-shrink: 0;
}
.testimonial__name { font-weight: 700; font-size: var(--text-sm); color: var(--color-text); }
.testimonial__role { font-size: var(--text-xs); color: var(--color-text-muted); }

/* =========================================
   FORMS
   ========================================= */
.form-group { display: flex; flex-direction: column; gap: var(--space-2); }
.form-group label { font-size: var(--text-sm); font-weight: 600; color: var(--color-text); }
.form-control {
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-text);
  width: 100%;
}
.form-control:focus { outline: none; border-color: var(--color-accent); box-shadow: 0 0 0 3px var(--color-accent-highlight); }
textarea.form-control { min-height: 140px; resize: vertical; }

/* =========================================
   FOOTER
   ========================================= */
.site-footer {
  background: var(--color-dark-bg);
  color: var(--color-dark-text);
  padding-block: var(--space-16) var(--space-8);
  border-top: 1px solid var(--color-dark-surface);
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}
@media (max-width: 900px) { .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); } }
@media (max-width: 500px) { .footer__grid { grid-template-columns: 1fr; gap: var(--space-8); } }

.footer__brand p { font-size: var(--text-sm); color: var(--color-dark-text-muted); line-height: 1.7; margin-top: var(--space-4); max-width: 36ch; }
.footer__col-title { font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-dark-text); margin-bottom: var(--space-4); }
.footer__links { list-style: none; display: flex; flex-direction: column; gap: var(--space-2); }
.footer__links a { font-size: var(--text-sm); color: var(--color-dark-text-muted); text-decoration: none; }
.footer__links a:hover { color: var(--color-accent); }

.footer__social { display: flex; gap: var(--space-3); margin-top: var(--space-5); }
.footer__social a {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  background: var(--color-dark-surface);
  color: var(--color-dark-text-muted);
  text-decoration: none;
}
.footer__social a:hover { background: var(--color-accent); color: var(--color-dark-bg); }

.footer__bottom {
  border-top: 1px solid var(--color-dark-surface);
  padding-top: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.footer__bottom p, .footer__bottom a { font-size: var(--text-xs); color: var(--color-dark-text-muted); text-decoration: none; }
.footer__bottom a:hover { color: var(--color-accent); }

/* =========================================
   SCROLL REVEAL
   ========================================= */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s cubic-bezier(0.16,1,0.3,1), transform 0.65s cubic-bezier(0.16,1,0.3,1);
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }
.reveal--delay-4 { transition-delay: 0.4s; }
.reveal--delay-5 { transition-delay: 0.5s; }

/* =========================================
   UTILITY — GRADIENT TEXT
   ========================================= */
.text-gradient {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 60%, var(--color-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
[data-theme="dark"] .text-gradient {
  background: linear-gradient(135deg, #9588fd 0%, #22d3ee 60%, #fbbf24 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}