/* ══════════════════════════════════════════════════════════════
   COMPONENTS · Reusable UI elements
   ══════════════════════════════════════════════════════════════ */

/* ── Buttons ───────────────────────────────────────────────── */

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  padding: 14px 32px;
  border-radius: 0;
  transition: background var(--transition-base), color var(--transition-base),
              border-color var(--transition-base), transform var(--transition-fast),
              box-shadow var(--transition-base);
  white-space: nowrap;
  cursor: pointer;
}

.btn-primary {
  background: var(--color-accent);
  color: #0A0B0D;
  border: 1px solid var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201, 168, 76, 0.25);
  color: #0A0B0D;
}

.btn-secondary {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent-border);
}

.btn-secondary:hover {
  background: var(--color-accent-dim);
  border-color: var(--color-accent);
  transform: translateY(-2px);
  color: var(--color-accent-light);
}

.btn--full {
  width: 100%;
}

/* ── Tag / Badge ───────────────────────────────────────────── */

.tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid var(--color-accent-border);
  color: var(--color-accent);
  border-radius: 0;
  white-space: nowrap;
}

/* ── Card base ──────────────────────────────────────────────── */

.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  transition: border-color var(--transition-base), transform var(--transition-base),
              box-shadow var(--transition-base);
}

.card:hover {
  border-color: var(--color-accent-border);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

/* ── Navigation ─────────────────────────────────────────────── */

#main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  height: var(--nav-height);
  background: linear-gradient(to bottom, rgba(10,11,13,0.72) 0%, transparent 100%);
  transition: background var(--transition-slow), box-shadow var(--transition-slow);
}

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

/* Nav scrolled state */
#main-nav.nav--scrolled {
  background: var(--color-bg-nav);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-nav);
}

/* Logo */
.nav__logo {
  display: flex;
  align-items: center;
  gap: 3px;
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-primary);
  transition: color var(--transition-base);
}

.nav__logo:hover {
  color: var(--color-accent);
}

.nav__logo-diamond {
  font-size: 16px;
  color: initial;
  line-height: 1;
  filter: grayscale(0);
}

/* Nav links */
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  position: relative;
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--color-text-primary);
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

/* Nav controls */
.nav__controls {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

/* ── Language switcher ──────────────────────────────────────── */

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-muted);
  transition: color var(--transition-base);
  padding: 6px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.lang-btn:hover {
  color: var(--color-text-primary);
  border-color: var(--color-accent-border);
}

.lang-btn__sep {
  opacity: 0.3;
}

.lang-btn__current {
  color: var(--color-accent);
}

/* ── Hamburger ──────────────────────────────────────────────── */

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
}

.hamburger__bar {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-text-primary);
  transition: transform var(--transition-base), opacity var(--transition-base);
  transform-origin: center;
}

.hamburger.is-open .hamburger__bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

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

.hamburger.is-open .hamburger__bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

@media (max-width: 1024px) {
  .nav__links {
    display: none;
  }
  .hamburger {
    display: flex;
  }
}

/* ── Mobile menu ────────────────────────────────────────────── */

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-nav) + 1);
  background: var(--color-bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
}

.mobile-menu.menu--open {
  transform: translateX(0);
}

.mobile-menu__close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  font-size: 20px;
  color: var(--color-text-secondary);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-base);
}

.mobile-menu__close:hover {
  color: var(--color-accent);
}

.mobile-menu__links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

.mobile-link {
  font-family: var(--font-display);
  font-size: clamp(32px, 8vw, 52px);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
}

.mobile-link:hover {
  color: var(--color-accent);
}

/* ── Value tile ─────────────────────────────────────────────── */

.value-tile {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-base);
}

.value-tile:hover {
  border-color: var(--color-accent-border);
}

.value-tile__num {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  color: var(--color-accent);
  letter-spacing: var(--tracking-wide);
}

.value-tile__icon {
  color: var(--color-accent);
  opacity: 0.8;
  margin-block: var(--space-2);
}

.value-tile span:last-child {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

/* ── Stat block ─────────────────────────────────────────────── */

.stat-block {
  text-align: center;
}

.stat-block__num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 64px);
  color: var(--color-accent);
  letter-spacing: var(--tracking-wide);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-block__label {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-label);
  font-weight: 500;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* ── Form elements ──────────────────────────────────────────── */

.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.form-field label {
  font-family: var(--font-heading);
  font-size: var(--text-label);
  font-weight: 600;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: var(--text-body);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  appearance: none;
  -webkit-appearance: none;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.10);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: var(--color-text-muted);
}

.form-field select option {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

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