:root {
  --bg: #e9edf2;
  --ink: #17243b;
  --card: #ffffff;
  --line: #d3d9e2;
  --accent: #2f5bea;
  --tint-1: #d9e6f6;
  --tint-2: #f5e4cf;
  --tint-3: #d8eadb;
}

*, *::before, *::after { box-sizing: border-box; }

html, body { margin: 0; }

body {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 2.5rem 1.25rem;
  background: var(--bg);
  color: var(--ink);
  font-family: "Vazirmatn", Tahoma, "Segoe UI", sans-serif;
}

/* ---------- Layout ---------- */
.page {
  width: min(100%, 1080px);
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.75rem;
}

/* ---------- Header frame ---------- */
.brand {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  padding: 2.25rem 1.75rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 28px;
  text-align: center;
  box-shadow: 0 1px 2px rgba(23, 36, 59, 0.06), 0 14px 30px -18px rgba(23, 36, 59, 0.35);
}

/* inner hairline frame */
.brand::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid var(--line);
  border-radius: 21px;
  pointer-events: none;
}

.brand__logo {
  position: relative;
  width: 7rem;
  height: 7rem;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: var(--tint-1);
  border: 2px dashed rgba(23, 36, 59, 0.28);
  border-radius: 24px;
}

.brand__logo svg {
  width: 2.75rem;
  height: 2.75rem;
  fill: none;
  stroke: rgba(23, 36, 59, 0.45);
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.brand__logo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.brand__logo:has(img) { border-color: transparent; background: none; }

.brand__title {
  margin: 0;
  max-width: 28ch;
  font-size: clamp(1.2rem, 0.9rem + 1.3vw, 1.75rem);
  font-weight: 800;
  line-height: 1.5;
  text-wrap: balance;
}

/* ---------- Card ---------- */
.card {
  display: flex;
  flex-direction: column;
  padding: 0.9rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 28px;
  color: inherit;
  text-decoration: none;
  box-shadow: 0 1px 2px rgba(23, 36, 59, 0.06), 0 14px 30px -18px rgba(23, 36, 59, 0.35);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 1px 2px rgba(23, 36, 59, 0.06), 0 26px 40px -20px rgba(23, 36, 59, 0.45);
}

.card:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

/* ---------- Image placeholder ---------- */
.card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 2px dashed rgba(23, 36, 59, 0.28);
  border-radius: 18px;
}

.card__media--1 { background: var(--tint-1); }
.card__media--2 { background: var(--tint-2); }
.card__media--3 { background: var(--tint-3); }

.card__media svg {
  width: 3.5rem;
  height: 3.5rem;
  fill: none;
  stroke: rgba(23, 36, 59, 0.45);
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* once a real <img> is added */
.card__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.card__media:has(img) { border-color: transparent; }

/* soft light that follows the pointer (see script.js) */
.card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), rgba(255, 255, 255, 0.6), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.card:hover .card__media::after { opacity: 1; }

/* ---------- Title ---------- */
.card__title {
  margin: 0;
  padding: 1.4rem 0.5rem 1.2rem;
  text-align: center;
  font-size: clamp(1.4rem, 1.1rem + 1vw, 1.9rem);
  font-weight: 800;
  line-height: 1.3;
}

/* ---------- Loading ---------- */
.card__spinner {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.75);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
}

.card__spinner::before {
  content: "";
  width: 3rem;
  height: 3rem;
  border: 4px solid rgba(47, 91, 234, 0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.card.is-loading,
.card.is-loading:hover { transform: scale(0.98); }

.card.is-loading .card__spinner { opacity: 1; }

.cards.is-busy .card:not(.is-loading) {
  pointer-events: none;
  opacity: 0.6;
}

@keyframes spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  .card__spinner::before { animation-duration: 1.8s; }
  .card.is-loading, .card.is-loading:hover { transform: none; }
}

/* ---------- Disabled ---------- */
.card.is-disabled {
  cursor: not-allowed;
  opacity: 0.55;
  filter: grayscale(1);
  box-shadow: none;
}

.card.is-disabled:hover {
  transform: none;
  box-shadow: none;
}

.card.is-disabled .card__media::after { display: none; }

/* ---------- Mobile ---------- */
@media (max-width: 800px) {
  body { padding: 2rem 2rem; }

  .page { width: min(100%, 420px); }

  .cards {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .card, .card__media::after { transition: none; }
  .card:hover { transform: none; }
}