/* ============================================================
   LAYOUT — Glass, Buttons, Cards, Grid, Sections
   ============================================================ */

/* ===== Glass ===== */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(22px) saturate(180%);
  -webkit-backdrop-filter: blur(22px) saturate(180%);
  border: 1px solid var(--glass-bd);
  border-radius: var(--radius);
  position: relative;
}

.glass::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--glass-hi), transparent 40%, transparent 60%, var(--glass-hi));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
  opacity: .6;
}

/* ===== Buttons ===== */
.btn {
  padding: 13px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .3px;
  transition: transform .3s cubic-bezier(.2,.7,.2,1),
              box-shadow .3s, background .3s, color .3s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  will-change: transform;
}

.btn-primary {
  background: linear-gradient(135deg, var(--c1), var(--c2) 60%, var(--c3));
  color: #fff;
  box-shadow: 0 10px 30px rgba(255,140,66,.35);
}
.btn-primary:hover { box-shadow: 0 14px 40px rgba(255,140,66,.5); }

.btn-ghost {
  background: var(--glass-bg);
  border: 1px solid var(--glass-bd);
  backdrop-filter: blur(14px);
  color: var(--text);
}
.btn-ghost:hover { background: rgba(255,255,255,.1); }

/* ===== Grid & Card ===== */
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

.card {
  padding: 28px 24px;
  transition: transform .35s cubic-bezier(.2,.7,.2,1),
              background .3s, border-color .3s;
  transform-style: preserve-3d;
  will-change: transform;
}

.card:hover {
  background: rgba(255,255,255,.09);
  border-color: rgba(255,255,255,.22);
}
html.light .card:hover {
  background: rgba(255,255,255,.75);
  border-color: rgba(0,0,0,.12);
}

.card h3 { font-size: 18px; margin-bottom: 6px; }
.card p  { color: var(--dim); font-size: 14px; }

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 20px;
  margin-bottom: 16px;
  background: linear-gradient(135deg, rgba(255,77,77,.2), rgba(34,211,238,.2));
  border: 1px solid var(--glass-bd);
  color: var(--text);
}

/* ===== Sections ===== */
.section {
  padding: 100px 20px;
  max-width: 1150px;
  margin: 0 auto;
}

.section-title {
  display: inline-block;
  padding: 10px 22px;
  font-size: 15px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 40px;
}

/* ===== Input ===== */
.glass-input {
  flex: 1;
  min-width: 200px;
  padding: 12px 18px;
  border-radius: 14px;
  border: 1px solid var(--glass-bd);
  background: var(--glass-bg);
  backdrop-filter: blur(14px);
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: .2s;
}
.glass-input:focus {
  border-color: rgba(255,140,66,.6);
  box-shadow: 0 0 0 4px rgba(255,140,66,.12);
}

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: 40px 20px;
  color: var(--dim);
  font-size: 13px;
  letter-spacing: 1px;
}

.footer-admin {
  margin-top: 12px;
  font-size: 11px;
  color: var(--dim);
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--glass-bd);
  transition: .2s;
  letter-spacing: 1px;
}
.footer-admin:hover {
  color: var(--text);
  background: var(--glass-bg);
}