:root {
  color-scheme: dark;
  --bg: #080b16;
  --card: rgba(255, 255, 255, 0.08);
  --card-strong: rgba(255, 255, 255, 0.13);
  --text: #f8fafc;
  --muted: #a6b0c3;
  --line: rgba(255, 255, 255, 0.16);
  --accent: #7c3aed;
  --accent-2: #06b6d4;
  --success: #34d399;
  --danger: #fb7185;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 10%, rgba(124, 58, 237, 0.35), transparent 32rem),
    radial-gradient(circle at 82% 18%, rgba(6, 182, 212, 0.22), transparent 28rem),
    linear-gradient(135deg, #080b16 0%, #101323 52%, #080b16 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent 70%);
}

a { color: inherit; }
button, input { font: inherit; }

.page-shell {
  position: relative;
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.hero { min-height: 72vh; }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 72px;
}

.brand, .nav-pill, .primary-link { text-decoration: none; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: -0.03em;
  font-size: 1.1rem;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 16px 34px rgba(124, 58, 237, 0.36);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-pill, .nav-button, .ghost-button {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.06);
  transition: 0.2s ease;
}

.nav-button, .ghost-button { cursor: pointer; }
.nav-pill:hover, .ghost-button:hover { color: var(--text); border-color: rgba(255, 255, 255, 0.32); transform: translateY(-1px); }

.user-chip {
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 10px 14px;
  border: 1px solid rgba(52, 211, 153, 0.28);
  border-radius: 999px;
  color: #bbf7d0;
  background: rgba(52, 211, 153, 0.1);
  white-space: nowrap;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 460px;
  gap: 56px;
  align-items: center;
}

.eyebrow, .card-kicker, .result-label {
  margin: 0 0 10px;
  color: #93c5fd;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(3rem, 7vw, 5.8rem);
  line-height: 0.9;
  letter-spacing: -0.08em;
}

.subline {
  max-width: 650px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.7;
}

.stats { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
.stats div { min-width: 116px; padding: 16px; border: 1px solid var(--line); border-radius: 22px; background: rgba(255, 255, 255, 0.055); backdrop-filter: blur(16px); }
.stats strong { display: block; margin-bottom: 4px; font-size: 1.45rem; letter-spacing: -0.06em; }
.stats span { color: var(--muted); font-size: 0.9rem; }

.card, .links-section {
  position: relative;
  overflow: hidden;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 34px;
  background: linear-gradient(180deg, var(--card-strong), var(--card));
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px);
}

.card::before, .links-section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent 36%);
  opacity: 0.35;
}

.card > *, .links-section > * { position: relative; }
.card-header, .section-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-bottom: 24px; }
.card h2, .section-heading h2 { margin-bottom: 0; font-size: 2rem; letter-spacing: -0.05em; }

.sparkle { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 18px; background: rgba(255, 255, 255, 0.1); color: #fde68a; }
.login-panel .primary-link { display: inline-flex; margin-top: 18px; }

.primary-link, #submit-button {
  padding: 15px 20px;
  border-radius: 18px;
  color: white;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 16px 30px rgba(6, 182, 212, 0.18);
  transition: 0.2s ease;
}
.primary-link:hover, #submit-button:hover { transform: translateY(-1px); box-shadow: 0 20px 36px rgba(6, 182, 212, 0.26); }

.form label { display: block; margin-bottom: 10px; color: var(--muted); font-weight: 700; }
.input-row { display: flex; gap: 10px; }

input {
  min-width: 0;
  width: 100%;
  padding: 16px 17px;
  border: 1px solid var(--line);
  border-radius: 18px;
  outline: none;
  color: var(--text);
  background: rgba(8, 11, 22, 0.68);
  transition: 0.2s ease;
}
input:focus { border-color: rgba(6, 182, 212, 0.65); box-shadow: 0 0 0 4px rgba(6, 182, 212, 0.14); }
button { border: 0; cursor: pointer; white-space: nowrap; font-weight: 800; }
#submit-button { border: 0; }
#submit-button:disabled { cursor: progress; opacity: 0.7; transform: none; }

.hint, .long-url, .link-long { margin: 10px 0 0; color: var(--muted); font-size: 0.92rem; }
.bigger { line-height: 1.6; font-size: 1rem; }
.alert { margin-top: 18px; padding: 14px 16px; border: 1px solid rgba(251, 113, 133, 0.35); border-radius: 18px; color: #fecdd3; background: rgba(251, 113, 133, 0.12); }

.result { margin-top: 22px; padding-top: 22px; border-top: 1px solid var(--line); }
.result-box { display: flex; gap: 10px; align-items: center; padding: 10px; border: 1px solid rgba(52, 211, 153, 0.32); border-radius: 22px; background: rgba(52, 211, 153, 0.09); }
#short-url, .link-short { min-width: 0; flex: 1; overflow: hidden; text-overflow: ellipsis; color: #bbf7d0; font-weight: 800; text-decoration: none; white-space: nowrap; }
#copy-button, .small-button { padding: 12px 14px; border-radius: 15px; color: var(--text); background: rgba(255, 255, 255, 0.12); transition: 0.2s ease; }
#copy-button:hover, .small-button:hover { background: rgba(255, 255, 255, 0.2); }

.links-section { margin-top: 40px; }
.empty-state { padding: 22px; border: 1px dashed var(--line); border-radius: 22px; color: var(--muted); text-align: center; }
.links-list { display: grid; gap: 14px; }
.link-card { display: grid; gap: 14px; padding: 18px; border: 1px solid var(--line); border-radius: 24px; background: rgba(255, 255, 255, 0.055); }
.link-main { min-width: 0; }
.edit-form { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; align-items: center; }
.edit-input { padding: 13px 14px; border-radius: 15px; }
.link-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.danger-button { color: #fecdd3; background: rgba(251, 113, 133, 0.13); }
.danger-button:hover { background: rgba(251, 113, 133, 0.22); }

@media (max-width: 900px) {
  .nav { margin-bottom: 42px; }
  .hero-grid { grid-template-columns: 1fr; gap: 34px; }
  .card { max-width: 680px; }
  .edit-form { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .page-shell { width: min(100% - 22px, 1120px); padding-top: 16px; }
  .nav { align-items: flex-start; margin-bottom: 34px; }
  h1 { font-size: clamp(2.7rem, 17vw, 4.2rem); }
  .input-row, .result-box, .section-heading { flex-direction: column; align-items: stretch; }
  #submit-button, #copy-button, .small-button { min-height: 52px; }
  .stats { display: grid; grid-template-columns: 1fr; }
  .link-actions { display: grid; grid-template-columns: 1fr; }
}