/* ============================================================
   COMPONENTS — Buttons, Tags, Social, Divider, Reveal,
                Keyframes, Inner-hero, Accessibility
   Loaded on every page.
   ============================================================ */

/* ── Buttons ── */
.btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.01em;
  transition: background-color var(--dur-base) cubic-bezier(0.4, 0, 0.2, 1),
              border-color var(--dur-base) cubic-bezier(0.4, 0, 0.2, 1),
              transform var(--dur-base) var(--ease-spring),
              box-shadow var(--dur-base) cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.4;
  will-change: transform;
}

.btn-accent:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  color: #fff;
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-accent:active {
  transform: translateY(0) scale(0.98);
  transition-duration: 80ms;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-lit);
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.875rem;
  transition: background-color var(--dur-base) cubic-bezier(0.4, 0, 0.2, 1),
              border-color var(--dur-base) cubic-bezier(0.4, 0, 0.2, 1),
              color var(--dur-base) cubic-bezier(0.4, 0, 0.2, 1),
              transform var(--dur-base) var(--ease-spring),
              box-shadow var(--dur-base) cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.4;
  will-change: transform;
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 4px 14px rgba(7, 160, 246, 0.1);
}

.btn-outline:active {
  transform: translateY(0) scale(0.98);
  transition-duration: 80ms;
}

/* ── Button size modifier ── */
.btn-sm {
  padding: 0.5rem 1.1rem !important;
  font-size: 0.8rem !important;
}

/* ── Tags ── */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.3rem 0.72rem;
  border-radius: var(--radius-xs);
  background: var(--card);
  color: var(--text-muted);
  border: 1px solid var(--border);
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: background var(--ease), color var(--ease), border-color var(--ease);
  cursor: default;
}

.tag i { font-size: 0.63rem; opacity: 0.75; }

.tag:hover {
  background: var(--accent-dim);
  color: var(--accent);
  border-color: rgba(7, 160, 246, 0.3);
}

[data-theme="dark"] .tag { background: var(--card); border-color: var(--border-lit); color: var(--text-muted); }

[data-theme="dark"] .tag:hover {
  background: var(--accent-dim);
  color: var(--accent-light);
  border-color: rgba(7, 160, 246, 0.3);
}

/* ── Social Icon Buttons ── */
.social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-lit);
  border-radius: var(--radius-xs);
  color: var(--text-dim);
  font-size: 0.95rem;
  transition: border-color var(--dur-fast) cubic-bezier(0.4, 0, 0.2, 1),
              color var(--dur-fast) cubic-bezier(0.4, 0, 0.2, 1),
              background-color var(--dur-fast) cubic-bezier(0.4, 0, 0.2, 1),
              transform var(--dur-base) var(--ease-spring),
              box-shadow var(--dur-base) cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  will-change: transform;
}

.social-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(7, 160, 246, 0.12);
}

.social-btn:active { transform: translateY(0) scale(0.95); transition-duration: 80ms; }

/* ── Divider ── */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--border) 30%, var(--border) 70%, transparent 100%);
  border: none;
  margin: 0;
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible  { opacity: 1; transform: translateY(0); }
.reveal.delay-1  { transition-delay: 0.08s; }
.reveal.delay-2  { transition-delay: 0.16s; }
.reveal.delay-3  { transition-delay: 0.24s; }
.reveal.delay-4  { transition-delay: 0.32s; }
.reveal.delay-5  { transition-delay: 0.40s; }

/* ── Keyframes ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes scrollDot {
  0%   { top: 4px;  opacity: 1; }
  80%  { top: 16px; opacity: 0; }
  100% { top: 4px;  opacity: 0; }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-8px); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ── Inner Page Hero ── */
/* Used on: about, projects, contact, open-source */
.inner-hero-eyebrow i { font-size: 0.65rem; }

.inner-hero {
  padding: calc(var(--nav-height) + 68px) 0 68px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.inner-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 55% 70% at 85% 50%, rgba(7, 160, 246, 0.05) 0%, transparent 65%);
  pointer-events: none;
}

[data-theme="dark"] .inner-hero::before {
  background: radial-gradient(ellipse 55% 70% at 85% 50%, rgba(7, 160, 246, 0.07) 0%, transparent 65%);
}

.inner-hero .container { position: relative; z-index: 1; }

.inner-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(7, 160, 246, 0.18);
  border-radius: 100px;
  padding: 0.35rem 0.9rem;
  margin-bottom: 1.25rem;
  animation: fadeInUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.inner-hero-title {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.04em;
  margin-bottom: 1rem;
  animation: fadeInUp 0.6s 0.08s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.inner-hero-desc {
  font-size: 1.025rem;
  color: var(--text-muted);
  max-width: 500px;
  line-height: 1.8;
  animation: fadeInUp 0.6s 0.16s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* ── Accessibility — Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

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

  .hero-eyebrow,
  .hero-name,
  .hero-role,
  .hero-description,
  .hero-cta,
  .hero-socials,
  .hero-photo-frame,
  .inner-hero-eyebrow,
  .inner-hero-title,
  .inner-hero-desc {
    animation: none;
    opacity: 1;
    transform: none;
  }
}