/* ════════════════════════════════════════
   BUTTONS
════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1;
  padding: 0.875em 1.5em;
  border-radius: 2rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background-color var(--dur-fast) var(--ease-out),
    color           var(--dur-fast) var(--ease-out),
    border-color    var(--dur-fast) var(--ease-out),
    transform       var(--dur-fast) var(--ease-out);
  white-space: nowrap;
  text-decoration: none;
}
.btn:hover  { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
}
.btn--primary:hover { background-color: #BDA5F5; border-color: #BDA5F5; }

.btn--outline {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-border);
}
.btn--outline:hover {
  border-color: var(--color-white);
  background-color: rgba(245,245,240,0.05);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-light);
  border-color: transparent;
  padding-left: 0; padding-right: 0;
}
.btn--ghost:hover { color: var(--color-white); }

.btn--text {
  background: none; border: none;
  color: var(--color-mid);
  font-size: var(--text-sm); font-weight: 400;
  padding: 0; border-radius: 0; letter-spacing: 0;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--color-border);
  transition: color var(--dur-fast), text-decoration-color var(--dur-fast);
}
.btn--text:hover { color: var(--color-white); text-decoration-color: var(--color-mid); transform: none; }

.btn--full { width: 100%; justify-content: center; }

.arrow { display: inline-block; transition: transform var(--dur-fast) var(--ease-out); }
.btn:hover .arrow { transform: translateX(3px); }

/* ════════════════════════════════════════
   TAGS
════════════════════════════════════════ */
.tag {
  display: inline-block;
  font-size: var(--text-xs); font-weight: 500;
  letter-spacing: 0.05em; text-transform: uppercase;
  padding: 0.3em 0.8em; border-radius: 2rem;
  background-color: var(--color-surface);
  color: var(--color-mid);
  border: 1px solid var(--color-border);
}
.tag--outline {
  background-color: transparent;
  color: var(--color-mid);
  border-color: var(--color-border);
}

/* ════════════════════════════════════════
   NAV
════════════════════════════════════════ */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000; padding-block: 1.25rem;
  transition: background-color var(--dur-med) var(--ease-out),
              backdrop-filter  var(--dur-med) var(--ease-out),
              border-color     var(--dur-med) var(--ease-out);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background-color: rgba(8,8,8,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-color: var(--color-border);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; }
.nav__links { display: flex; align-items: center; gap: var(--space-xl); }
.nav__link {
  font-size: var(--text-sm); color: var(--color-mid); font-weight: 400;
  position: relative; transition: color var(--dur-fast);
}
.nav__link::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 1px; background-color: var(--color-white);
  transition: width var(--dur-med) var(--ease-out);
}
.nav__link:hover { color: var(--color-white); }
.nav__link:hover::after { width: 100%; }
.nav__link.active { color: var(--color-white); }
.nav__link.active::after { width: 100%; }
.nav__cta { font-size: var(--text-sm); padding: 0.6em 1.25em; }

.nav__burger {
  display: none; flex-direction: column; gap: 6px;
  width: 28px; padding: 4px 0; z-index: 1100;
}
.nav__burger span {
  display: block; height: 1px; background-color: var(--color-white);
  transition: transform var(--dur-med) var(--ease-out), opacity var(--dur-med);
  transform-origin: center;
}
.nav__burger.open span:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }

.nav__overlay {
  display: none; position: fixed; inset: 0;
  background-color: var(--color-bg); z-index: 1050;
  flex-direction: column; justify-content: center; align-items: center;
  gap: var(--space-xl); opacity: 0; pointer-events: none;
  transition: opacity var(--dur-med) var(--ease-out);
}
.nav__overlay.open { opacity: 1; pointer-events: all; }
.nav__mobile-links { display: flex; flex-direction: column; align-items: center; gap: var(--space-xl); }
.nav__mobile-link {
  font-size: var(--text-3xl); font-weight: 300;
  letter-spacing: -0.03em; color: var(--color-mid);
  transition: color var(--dur-fast);
}
.nav__mobile-link:hover, .nav__mobile-cta { color: var(--color-white); }
.nav__mobile-footer { position: absolute; bottom: var(--space-xl); }

/* ════════════════════════════════════════
   FORMS
════════════════════════════════════════ */
.contact__form { display: flex; flex-direction: column; gap: var(--space-md); }
.form__group { display: flex; flex-direction: column; gap: 0.4rem; }
.form__label { font-size: var(--text-xs); font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-mid); }
.form__input {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-white);
  font-size: var(--text-base); font-weight: 300;
  padding: 0.75rem 1rem; width: 100%; outline: none;
  transition: border-color var(--dur-fast);
}
.form__input::placeholder { color: var(--color-mid); opacity: 0.6; }
.form__input:focus { border-color: var(--color-mid); }
.form__input:focus-visible { border-color: var(--color-accent); }
.form__textarea { resize: vertical; min-height: 120px; }
.form__note { font-size: var(--text-xs); text-align: center; margin-top: -0.25rem; }

/* ════════════════════════════════════════
   CUSTOM CURSOR
════════════════════════════════════════ */
.cursor, .cursor-follower {
  position: fixed; pointer-events: none; z-index: 9999;
  border-radius: 50%; transform: translate(-50%,-50%);
  transition: opacity var(--dur-fast);
}
.cursor { width: 8px; height: 8px; background-color: var(--color-accent); top: 0; left: 0; }
.cursor-follower {
  width: 36px; height: 36px;
  border: 1px solid rgba(139,92,246,0.4);
  top: 0; left: 0;
  transition: width var(--dur-med) var(--ease-out),
              height var(--dur-med) var(--ease-out),
              border-color var(--dur-med) var(--ease-out),
              opacity var(--dur-fast);
}
.cursor-follower.expanded { width: 72px; height: 72px; border-color: var(--color-accent); }
@media (pointer: coarse) { .cursor, .cursor-follower { display: none; } }