:root {
  --bg: #eef1f6;
  --bg-2: #e4e9f2;
  --card-bg: rgba(255, 255, 255, 0.72);
  --text: #14161a;
  --muted: #5b5f68;
  --accent: #2563eb;
  --accent-2: #7c3aed;
  --link-bg: rgba(255, 255, 255, 0.55);
  --link-bg-hover: rgba(255, 255, 255, 0.9);
  --border: rgba(20, 22, 30, 0.08);
  --shadow: rgba(37, 99, 235, 0.12);

  --brand-email: #2563eb;
  --brand-linkedin: #0A66C2;
  --brand-x: #14171a;
  --brand-telegram: #26A5E4;
  --brand-github: #6e40c9;
  --brand-nobitex: #f7931a;
  --brand-arzdigital: #16a34a;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d12;
    --bg-2: #12141c;
    --card-bg: rgba(23, 26, 33, 0.72);
    --text: #f2f3f5;
    --muted: #a0a4ad;
    --accent: #6d93f7;
    --accent-2: #a78bfa;
    --link-bg: rgba(255, 255, 255, 0.04);
    --link-bg-hover: rgba(255, 255, 255, 0.09);
    --border: rgba(255, 255, 255, 0.08);
    --shadow: rgba(0, 0, 0, 0.4);

    --brand-x: #e5e7eb;
    --brand-github: #a78bfa;
  }
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", "Segoe UI", Tahoma, Arial, sans-serif;
  position: relative;
  overflow-x: hidden;
}

html[dir="rtl"] body {
  font-family: "Vazirmatn", "Inter", Tahoma, Arial, sans-serif;
}

@media (max-height: 700px) {
  body { padding: 18px 16px; align-items: flex-start; }
}

/* decorative background blobs */
.bg-decor {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(38vmax 38vmax at 12% 12%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 70%),
    radial-gradient(42vmax 42vmax at 88% 85%, color-mix(in srgb, var(--accent-2) 20%, transparent), transparent 70%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
  filter: blur(4px);
}

.card {
  position: relative;
  width: 100%;
  max-width: 440px;
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 30px 26px 20px;
  text-align: center;
  box-shadow: 0 20px 60px var(--shadow), 0 2px 8px rgba(0, 0, 0, 0.04);
  animation: card-in 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* language switch */
.lang-toggle {
  position: absolute;
  top: 16px;
  inset-inline-end: 16px;
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  cursor: pointer;
  direction: ltr;
  -webkit-tap-highlight-color: transparent;
}

.toggle-track {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  width: 64px;
  height: 30px;
  padding: 3px;
  border-radius: 999px;
  background: var(--link-bg);
  border: 1px solid var(--border);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05);
}

.toggle-thumb {
  position: absolute;
  top: 50%;
  left: 3px;
  width: 29px;
  height: 24px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 2px 6px var(--shadow);
  transform: translateY(-50%);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.lang-toggle[data-lang="en"] .toggle-thumb {
  transform: translate(29px, -50%);
}

.toggle-option {
  position: relative;
  z-index: 1;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-align: center;
  color: var(--muted);
  transition: color 0.2s ease;
  user-select: none;
}

.toggle-option.fa { font-family: "Vazirmatn", sans-serif; }
.toggle-option.en { font-family: "Inter", sans-serif; }

.lang-toggle[data-lang="fa"] .toggle-option.fa,
.lang-toggle[data-lang="en"] .toggle-option.en {
  color: #fff;
}

@media (prefers-reduced-motion: reduce) {
  .toggle-thumb { transition: none; }
}

@keyframes card-in {
  from { opacity: 0; transform: translateY(14px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.avatar-ring {
  width: 92px;
  height: 92px;
  margin: 4px auto 14px;
  border-radius: 50%;
  padding: 3px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  border: 3px solid var(--card-bg);
}

h1 {
  margin: 0 0 6px;
  font-size: clamp(19px, 4.5vw, 23px);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.title {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
  padding: 0 6px;
}

.interests {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.6;
  padding: 0 10px;
  opacity: 0.85;
}

.links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

@media (min-width: 640px) {
  .card { max-width: 600px; }
  .links { grid-template-columns: 1fr 1fr; gap: 10px; }
}

.link {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--link-bg);
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
  padding: 11px 15px;
  border-radius: 14px;
  font-size: 13.5px;
  font-weight: 500;
  transition: background-color 0.18s ease, border-color 0.18s ease, transform 0.15s ease, box-shadow 0.18s ease;
}

.link:hover,
.link:focus-visible {
  background-color: var(--link-bg-hover);
  background-color: color-mix(in srgb, var(--accent, var(--text)) 10%, var(--link-bg-hover));
  border-color: var(--accent, var(--border));
  border-color: color-mix(in srgb, var(--accent, var(--text)) 35%, var(--border));
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--shadow);
  box-shadow: 0 8px 20px color-mix(in srgb, var(--accent, var(--text)) 18%, transparent);
}

.link:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.link:active { transform: translateY(0); }

.link-text { flex: 1; text-align: start; }

.icon {
  display: inline-flex;
  flex-shrink: 0;
  color: var(--accent, var(--muted));
  transition: color 0.18s ease, transform 0.18s ease;
}

.link:hover .icon { transform: scale(1.08); }

.chevron {
  width: 7px;
  height: 7px;
  border-inline-end: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(-45deg);
  opacity: 0;
  transition: opacity 0.18s ease, transform 0.18s ease;
  flex-shrink: 0;
}

html[dir="rtl"] .chevron { transform: rotate(135deg); }

.link:hover .chevron { opacity: 0.6; }

footer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--muted);
}

.made-with {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.heart { flex-shrink: 0; }

@media (prefers-reduced-motion: reduce) {
  .card { animation: none; }
  .link, .lang-toggle, .icon, .chevron { transition: none; }
}