/* ============================================================
   Smart Scheduler — Shared components
   Buttons, badges, nav, footer, cards
   ============================================================ */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.55rem;
  font-weight: 600; font-size: 0.95rem; line-height: 1;
  padding: 0.85rem 1.4rem; border-radius: var(--radius-pill);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
  white-space: nowrap; cursor: pointer;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--lime); color: var(--text-on-lime);
  box-shadow: var(--shadow-lime);
}
.btn-primary:hover { background: var(--lime-bright); transform: translateY(-2px); }

.btn-secondary {
  background: var(--surface-2); color: var(--text);
  border: 1px solid var(--border-strong);
}
.btn-secondary:hover { background: var(--surface-3); border-color: var(--text-dim); }

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

.btn-lg { padding: 1.05rem 1.8rem; font-size: 1.02rem; }
.btn-block { display: flex; width: 100%; }

/* ---------- Pills / badges ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.8rem; font-weight: 500;
  padding: 0.4rem 0.9rem; border-radius: var(--radius-pill);
  background: var(--surface-2); border: 1px solid var(--border);
  color: var(--text-muted);
}
.badge-lime {
  background: rgba(190, 242, 100, 0.1);
  border-color: var(--border-accent);
  color: var(--lime-bright);
}

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease),
              background var(--dur) var(--ease);
}
.card:hover { border-color: var(--border-strong); transform: translateY(-3px); }

/* ---------- Navbar ---------- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(10, 10, 11, 0.65);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--border);
}
.nav-content {
  max-width: var(--maxw); margin: 0 auto;
  padding: 0.9rem var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.logo { display: flex; align-items: center; gap: 0.6rem; font-family: var(--font-display); }
.logo-icon {
  width: 34px; height: 34px; border-radius: 9px;
  display: grid; place-items: center;
  background: var(--lime); color: var(--text-on-lime);
  box-shadow: 0 0 18px rgba(190, 242, 100, 0.4);
}
.logo span { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.02em; }
.nav-links { display: flex; align-items: center; gap: 1.8rem; }
.nav-links a:not(.btn) {
  color: var(--text-muted); font-size: 0.92rem; font-weight: 500;
  transition: color var(--dur) var(--ease);
}
.nav-links a:not(.btn):hover { color: var(--text); }

.hamburger-btn {
  display: none; font-size: 1.5rem; color: var(--text);
  background: var(--surface-2); border: 1px solid var(--border);
  width: 42px; height: 42px; border-radius: 10px;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-subtle);
  padding-block: 3rem 2.5rem;
}
.footer-content {
  max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter);
  display: flex; flex-wrap: wrap; gap: 1.5rem;
  align-items: center; justify-content: space-between;
}
.footer-brand { display: flex; flex-direction: column; gap: 0.35rem; }
.footer-logo { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; }
.footer-tagline { color: var(--text-dim); font-size: 0.9rem; }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: var(--text-muted); font-size: 0.9rem; transition: color var(--dur) var(--ease); }
.footer-links a:hover { color: var(--lime); }

/* Credit bar — "Built by Meridian Tech" */
.footer-credit {
  max-width: var(--maxw); margin: 1.5rem auto 0;
  padding: 1.25rem var(--gutter) 0;
  border-top: 1px solid var(--border);
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem;
  align-items: center; justify-content: space-between;
  font-size: 0.85rem; color: var(--text-dim);
}
.footer-credit .built-by { display: inline-flex; align-items: center; gap: 0.4rem; }
.footer-credit a {
  display: inline-flex; align-items: center; gap: 0.25rem;
  color: var(--text); font-weight: 600;
  transition: color var(--dur) var(--ease);
}
.footer-credit a:hover { color: var(--lime); }
.footer-credit a svg { opacity: 0.7; }

/* ---------- Forms (shared) ---------- */
.field { display: flex; flex-direction: column; gap: 0.45rem; margin-bottom: 1.1rem; }
.field label { font-size: 0.88rem; font-weight: 500; color: var(--text-muted); }
.input {
  width: 100%; padding: 0.85rem 1rem;
  background: var(--surface-3); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.input::placeholder { color: var(--text-dim); }
.input:focus {
  outline: none; border-color: var(--lime);
  box-shadow: 0 0 0 3px rgba(190, 242, 100, 0.15);
}

/* ---------- Mobile nav ---------- */
@media (max-width: 820px) {
  .hamburger-btn { display: grid; place-items: center; }
  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0.5rem;
    padding: 1rem var(--gutter) 1.5rem;
    background: rgba(10, 10, 11, 0.96);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
    transform: translateY(-10px); opacity: 0; pointer-events: none;
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-links a:not(.btn) { padding: 0.6rem 0; }
}