@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap");

:root {
  --card-bg: linear-gradient(160deg, rgba(16, 47, 36, 0.95) 0%, rgba(18, 57, 43, 0.92) 100%);
  --border-neon: rgba(45, 195, 178, 0.45);
  --text-main: #f4fff7;
  --text-soft: #cdeed9;
  --accent-cyan: #2dc3b2;
  --accent-magenta: #f3d667;
  --danger: #ff5f8d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  padding: 20px;
  color: var(--text-main);
  font-family: "Poppins", sans-serif;
  background-image: url("../img/abstract-gradient-circles-background-with-yellow-and-green-colors-vector.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.group-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-areas:
    "header header header"
    "create join invite"
    "table table chart";
  gap: 14px;
  max-width: 1400px;
  margin: 0 auto;
}

.group-card {
  border: 1px solid var(--border-neon);
  border-radius: 16px;
  padding: 16px;
  background: var(--card-bg);
  box-shadow:
    0 12px 24px rgba(0, 0, 0, 0.35),
    inset 0 0 0 1px rgba(255, 255, 255, 0.03),
    0 0 24px rgba(138, 93, 255, 0.14);
}

.header-card { grid-area: header; }
.create-card { grid-area: create; }
.join-card { grid-area: join; }
.invite-card { grid-area: invite; }
.table-card { grid-area: table; }
.chart-card { grid-area: chart; }

h1,
h2 {
  margin: 0 0 10px;
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  line-height: 1.3;
}

h1 {
  font-size: 1.25rem;
}

h2 {
  font-size: 0.9rem;
}

p,
label {
  color: var(--text-soft);
}

.links-row {
  display: flex;
  gap: 14px;
}

.links-row a {
  color: var(--accent-cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(83, 229, 255, 0.45);
}

form {
  display: grid;
  gap: 12px;
}

input,
button {
  width: 100%;
  border-radius: 10px;
  border: 1px solid rgba(83, 229, 255, 0.4);
  background: rgba(6, 11, 24, 0.88);
  color: var(--text-main);
  padding: 10px 12px;
  font-family: "Poppins", sans-serif;
  font-size: 0.95rem;
  outline: none;
}

input:focus {
  border-color: var(--accent-magenta);
  box-shadow: 0 0 0 2px rgba(243, 214, 103, 0.22);
}

button {
  cursor: pointer;
  border-color: rgba(243, 214, 103, 0.75);
  background: linear-gradient(180deg, rgba(14, 52, 40, 0.95) 0%, rgba(47, 159, 98, 0.95) 100%);
  font-weight: 700;
}

button:hover {
  filter: brightness(1.08);
}

.danger-btn {
  margin-top: 10px;
  border-color: rgba(255, 95, 141, 0.7);
  background: linear-gradient(180deg, rgba(121, 31, 65, 0.95) 0%, rgba(58, 16, 31, 0.95) 100%);
}

#groupResult {
  min-height: 24px;
  color: #d8e3ff;
}

.invite-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

#copyInviteBtn {
  width: auto;
  min-width: 92px;
}

.table-scroll {
  margin-top: 8px;
  max-height: 320px;
  overflow: auto;
  border: 1px solid rgba(83, 229, 255, 0.34);
  border-radius: 10px;
}

table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  background: rgba(4, 8, 18, 0.92);
}

th,
td {
  border: 1px solid rgba(83, 229, 255, 0.2);
  padding: 7px 8px;
  text-align: left;
}

th {
  color: var(--accent-cyan);
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.35px;
  position: sticky;
  top: 0;
  background: rgba(8, 15, 32, 0.98);
}

td {
  color: #d7e2ff;
  font-size: 0.78rem;
}

.chart-shell {
  overflow-x: auto;
}

.chart-shell canvas {
  width: 100%;
  height: auto;
  min-width: 620px;
  border: 1px solid rgba(83, 229, 255, 0.25);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(10, 17, 34, 0.95) 0%, rgba(7, 10, 26, 0.96) 100%);
}

.chart-empty {
  margin-top: 8px;
}

@media (max-width: 1100px) {
  .group-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-areas:
      "header header"
      "create join"
      "invite invite"
      "table table"
      "chart chart";
  }
}

@media (max-width: 680px) {
  body {
    padding: 12px;
  }

  .group-grid {
    grid-template-columns: 1fr;
    grid-template-areas:
      "header"
      "create"
      "join"
      "invite"
      "table"
      "chart";
  }

  h1 {
    font-size: 1rem;
  }

  h2 {
    font-size: 0.82rem;
  }

  .chart-shell canvas {
    min-width: 0;
  }
}