/* ═══════════════════════════════════════════════════
   PenScan — Components
   ═══════════════════════════════════════════════════ */

/* ── Buttons ────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  line-height: 1;
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--color-cyan);
  color: var(--color-text-inv);
  border-color: var(--color-cyan);
  font-weight: var(--weight-bold);
}
.btn--primary:hover {
  background: #7dd3fc;
  border-color: #7dd3fc;
  color: var(--color-text-inv);
  transform: translateY(-1px);
  box-shadow: 0 8px 28px rgba(56,189,248,0.35);
}
.btn--primary:active { transform: translateY(0); }

.btn--secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border-2);
}
.btn--secondary:hover {
  background: var(--color-surface-2);
  border-color: rgba(255,255,255,0.2);
  color: var(--color-text);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-2);
  border-color: transparent;
  padding-inline: var(--space-3);
}
.btn--ghost:hover { color: var(--color-text); background: var(--color-surface-2); }

.btn--lg {
  font-size: var(--text-base);
  padding: 0.9rem 2rem;
  border-radius: var(--radius-lg);
}

.btn--sm {
  font-size: var(--text-xs);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-sm);
}

.btn svg { width: 16px; height: 16px; flex-shrink: 0; }

/* ── Cards ──────────────────────────────────────── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  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-border-2);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.card--glow:hover {
  border-color: rgba(56,189,248,0.25);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(56,189,248,0.08);
}

.card--flat {
  background: var(--color-surface-2);
  border-color: var(--color-border);
}

/* ── Badge / Pill ───────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.badge--cyan {
  background: var(--color-cyan-dim);
  color: var(--color-cyan);
  border: 1px solid rgba(56,189,248,0.2);
}
.badge--green {
  background: var(--color-green-dim);
  color: var(--color-green);
  border: 1px solid rgba(16,185,129,0.2);
}
.badge--violet {
  background: var(--color-violet-dim);
  color: var(--color-violet);
  border: 1px solid rgba(139,92,246,0.2);
}
.badge--amber {
  background: var(--color-amber-dim);
  color: var(--color-amber);
  border: 1px solid rgba(245,158,11,0.2);
}

/* ── Dot indicator ──────────────────────────────── */
.dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}

/* ── Tag ────────────────────────────────────────── */
.tag {
  font-size: 11px;
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-3);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 3px 8px;
}

/* ── Icon box ───────────────────────────────────── */
.icon-box {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}
.icon-box--cyan   { background: var(--color-cyan-dim);   color: var(--color-cyan); }
.icon-box--violet { background: var(--color-violet-dim); color: var(--color-violet); }
.icon-box--green  { background: var(--color-green-dim);  color: var(--color-green); }
.icon-box--amber  { background: var(--color-amber-dim);  color: var(--color-amber); }

.icon-box svg { width: 22px; height: 22px; }

.icon-box--lg { width: 64px; height: 64px; border-radius: var(--radius-lg); }
.icon-box--lg svg { width: 30px; height: 30px; }

/* ── Stat ───────────────────────────────────────── */
.stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.stat__value {
  font-size: var(--text-4xl);
  font-weight: var(--weight-black);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text);
  line-height: 1;
}
.stat__label {
  font-size: var(--text-sm);
  color: var(--color-text-2);
}

/* ── Form elements ──────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-2);
}

.form-input,
.form-select,
.form-textarea {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--text-sm);
  padding: 0.7rem 1rem;
  width: 100%;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-cyan);
  box-shadow: 0 0 0 3px var(--color-cyan-dim);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-3);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  line-height: var(--leading-normal);
}

/* ── Navbar ─────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  background: rgba(10,15,30,0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.navbar.nav--scrolled {
  background: rgba(10,15,30,0.96);
  box-shadow: 0 1px 0 var(--color-border), var(--shadow-sm);
}

.navbar__inner {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  height: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-lg);
  font-weight: var(--weight-black);
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.03em;
  flex-shrink: 0;
}
.navbar__logo:hover { color: var(--color-text); }

.navbar__logo-mark {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-violet) 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex: 1;
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-2);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}
.nav__link:hover  { color: var(--color-text); background: var(--color-surface-2); }
.nav__link.is-active { color: var(--color-text); }

.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.mobile-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-2);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.mobile-menu-btn:hover { border-color: var(--color-border-2); color: var(--color-text); }

.mobile-nav {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: rgba(10,15,30,0.97);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4);
  z-index: 999;
  flex-direction: column;
  gap: var(--space-1);
  transform: translateY(-10px);
  opacity: 0;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  pointer-events: none;
}
.mobile-nav.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.mobile-nav .nav__link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
}

.mobile-nav__actions {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-2);
}
.mobile-nav__actions .btn { flex: 1; justify-content: center; }

/* ── Page hero (inner pages) ────────────────────── */
.page-hero {
  padding-top: calc(var(--nav-height) + var(--space-20));
  padding-bottom: var(--space-20);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero h1 {
  font-size: clamp(2.25rem, 4vw, var(--text-6xl));
  margin-bottom: var(--space-6);
}

.page-hero p {
  font-size: var(--text-xl);
  max-width: 640px;
  margin-inline: auto;
}

/* ── Reveal animation ───────────────────────────── */
.reveal-init {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal-init.is-revealed {
  opacity: 1;
  transform: translateY(0);
}