:root {
  color-scheme: light;
  --font-display: "Avenir Next", "Trebuchet MS", "Gill Sans", "Segoe UI", sans-serif;
  --font-body: "Trebuchet MS", "Verdana", "Segoe UI", sans-serif;
  --bg-top: #f2efe7;
  --bg-bottom: #dce7ef;
  --ink-strong: #1d2a2f;
  --ink-soft: #445a61;
  --surface: #fbfaf7;
  --surface-elevated: #ffffff;
  --line: #cfddd7;
  --accent: #106c61;
  --accent-strong: #0c4e46;
  --accent-soft: #dbf3ef;
  --accent-alt: #c06d0e;
  --accent-alt-strong: #8d4f09;
  --accent-alt-soft: #fff2df;
  --danger: #a33a2f;
  --danger-soft: #ffe9e5;
  --radius-lg: 18px;
  --radius-sm: 12px;
  --shadow: 0 18px 40px rgba(9, 44, 39, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink-strong);
  background:
    radial-gradient(140% 120% at 0% 0%, rgba(16, 108, 97, 0.12), transparent 60%),
    radial-gradient(90% 80% at 100% 100%, rgba(192, 109, 14, 0.12), transparent 60%),
    linear-gradient(160deg, var(--bg-top), var(--bg-bottom));

  &.modal-open {
    overflow: hidden;
  }
}

[data-ui="app-shell"] {
  width: min(72rem, 100%);
  margin: 0 auto;
  padding: 1.1rem 0.9rem 2.4rem;
}

[data-ui="hero"] {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--surface), var(--surface-elevated));
  box-shadow: var(--shadow);
  padding: 1.1rem;

  [data-ui="hero-kicker"] {
    display: inline-block;
    border-radius: 999px;
    border: 1px solid var(--accent-alt);
    background: var(--accent-alt-soft);
    color: var(--accent-alt-strong);
    font-weight: 700;
    font-size: 0.74rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 0.24rem 0.6rem;
  }

  h1 {
    font-family: var(--font-display);
    line-height: 1.1;
    margin: 0.65rem 0 0.5rem;
    font-size: clamp(1.6rem, 6vw, 2.5rem);
  }

  [data-ui="hero-copy"] {
    margin: 0;
    color: var(--ink-soft);
    max-width: 56ch;
  }
}

[data-ui="section-stack"] {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

[data-ui="step-list"] {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

[data-ui="step-chip"] {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.7rem;
  font-weight: 650;
  font-size: 0.86rem;

  &[data-state="active"] {
    border-color: var(--accent);
    background: var(--accent-soft);
    color: var(--accent-strong);
  }

  &[data-state="done"] {
    border-color: #8db8a9;
    background: #ebf8f4;
  }

  &[data-state="upcoming"] {
    color: var(--ink-soft);
    background: #f4f8f6;
  }
}

[data-ui="panel-grid"] {
  display: grid;
  gap: 0.85rem;
}

[data-ui="panel"] {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-elevated);
  padding: 0.85rem;

  > header {
    h2 {
      margin: 0;
      font-size: 1.04rem;
      font-family: var(--font-display);
    }

    p {
      margin: 0.35rem 0 0;
      color: var(--ink-soft);
      font-size: 0.92rem;
    }
  }

  > section {
    display: grid;
    gap: 0.7rem;
    margin-top: 0.9rem;

    h3 {
      margin: 0;
      font-size: 0.95rem;
      font-family: var(--font-display);
    }

    p {
      margin: 0.35rem 0 0;
      color: var(--ink-soft);
      font-size: 0.92rem;
    }
  }

  > footer {
    margin-top: 0.9rem;
  }
}

[data-ui="field"] {
  display: grid;
  gap: 0.35rem;

  label {
    font-weight: 680;
    font-size: 0.89rem;
  }

  [data-ui="input"] {
    width: 100%;
    border: 1px solid #b5ccc2;
    border-radius: 12px;
    padding: 0.65rem 0.72rem;
    font: inherit;
    background: #fdfefe;
    color: var(--ink-strong);
    transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;

    &:focus {
      border-color: var(--accent);
      outline: 2px solid #5eb6aa45;
      outline-offset: 1px;
    }

    &[data-state="invalid"] {
      border-color: #ca5a50;
      background: #fff7f6;
    }

    &[data-state="valid"] {
      border-color: #4da173;
      background: #f5fff8;
    }
  }

  [data-ui="field-hint"] {
    margin: 0;
    font-size: 0.8rem;
    color: #5d7571;
  }

  [data-ui="field-message"] {
    min-height: 1.1rem;
  }

  [data-ui="field-notice"] {
    margin: 0;
    font-size: 0.8rem;

    &[data-state="invalid"] {
      color: #9c2f27;
      font-weight: 650;
    }

    &[data-state="valid"] {
      color: #1f6d45;
      font-weight: 650;
    }
  }
}

[data-ui="validation-stack"] {
  display: grid;
  gap: 0.6rem;
}

[data-ui="validation-card"] {
  border: 1px solid #cfe1db;
  border-radius: 12px;
  padding: 0.6rem;
  background: #f8fcfa;

  h3 {
    margin: 0 0 0.5rem;
    font-size: 0.86rem;
    color: #2f5550;
  }

  &[data-state="invalid"] {
    border-color: #dfb2ab;
    background: #fff7f6;
  }

  &[data-state="valid"] {
    border-color: #a9d2bf;
    background: #f6fdf9;
  }
}

[data-ui="button-row"] {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

[data-ui="button"] {
  border-radius: 999px;
  font: inherit;
  font-weight: 700;
  padding: 0.58rem 0.95rem;
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink-strong);
  cursor: pointer;
  transition: transform 140ms ease, background-color 140ms ease, border-color 140ms ease,
    color 140ms ease, box-shadow 140ms ease;

  &:hover {
    transform: translateY(-1px);
  }

  &:focus-visible {
    outline: 2px solid #5eb6aa73;
    outline-offset: 2px;
  }

  &:active {
    transform: translateY(0);
  }

  &[data-variant="primary"] {
    background: var(--accent);
    border-color: var(--accent);
    color: #f6fdfb;

    &:hover {
      background: var(--accent-strong);
      border-color: var(--accent-strong);
    }
  }

  &[data-variant="secondary"] {
    background: #f1f7f4;
    border-color: #b7d2c7;

    &:hover {
      border-color: var(--accent-alt);
      color: var(--accent-alt-strong);
    }
  }

  &[data-variant="ghost"] {
    background: transparent;
    border-color: #b9cbc5;

    &:hover {
      background: #edf5f1;
      border-color: #9db9af;
    }
  }

  &[data-variant="danger"] {
    background: var(--danger);
    border-color: var(--danger);
    color: #fff6f5;

    &:hover {
      background: #862e25;
      border-color: #862e25;
    }
  }
}

[data-ui="button-link"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font: inherit;
  font-weight: 700;
  padding: 0.58rem 0.95rem;
  border: 1px solid #b7d2c7;
  background: #f1f7f4;
  color: var(--ink-strong);
  text-decoration: none;
  transition: transform 140ms ease, background-color 140ms ease, border-color 140ms ease,
    color 140ms ease;

  &:hover {
    transform: translateY(-1px);
    border-color: var(--accent-alt);
    color: var(--accent-alt-strong);
  }

  &:focus-visible {
    outline: 2px solid #5eb6aa73;
    outline-offset: 2px;
  }

  &[data-variant="secondary"] {
    background: #f1f7f4;
    border-color: #b7d2c7;
  }
}

[data-ui="nav"] {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #f8fcfa;
  padding: 0.25rem;

  ul {
    display: flex;
    gap: 0.25rem;
    margin: 0;
    padding: 0;
    list-style: none;
    overflow-x: auto;
  }

  a {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    text-decoration: none;
    color: var(--ink-soft);
    font-weight: 700;
    font-size: 0.86rem;
    padding: 0.45rem 0.8rem;
    transition: background-color 140ms ease, color 140ms ease;

    &:hover {
      background: var(--accent-alt-soft);
      color: var(--accent-alt-strong);
    }

    &:focus-visible {
      outline: 2px solid #e7b16f;
      outline-offset: 1px;
    }

    &[data-active="true"] {
      color: var(--accent-strong);
      background: var(--accent-soft);
    }
  }
}

[data-ui="player-grid"] {
  display: grid;
  gap: 0.55rem;
}

[data-ui="player-card"] {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  border: 1px solid #cce0d8;
  border-radius: 12px;
  background: #f9fffc;
  padding: 0.5rem 0.6rem;
  margin: 0;

  [data-ui="avatar"] {
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 999px;
    border: 1px solid #8db8a9;
    background: #d9f0e8;
    color: #0b534a;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    margin: 0;

    img {
      width: 100%;
      height: 100%;
      border-radius: 999px;
      object-fit: cover;
    }
  }

  h3 {
    margin: 0;
  }

  p {
    margin: 0.2rem 0 0;
    font-size: 0.81rem;
  }
}

[data-ui="table-wrap"] {
  overflow-x: auto;
  border: 1px solid #cadcd6;
  border-radius: 10px;
}

[data-ui="data-table"] {
  width: 100%;
  border-collapse: collapse;
  min-width: 28rem;

  caption {
    caption-side: top;
    text-align: left;
    padding: 0.6rem;
    font-weight: 700;
  }

  th,
  td {
    border-bottom: 1px solid #dbe8e3;
    text-align: left;
    padding: 0.52rem 0.6rem;
    font-size: 0.87rem;
  }

  th {
    background: #f1f8f5;
    color: #2a4f49;
  }
}

[data-ui="row-action-list"] {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

[data-ui="row-action-item"] {
  border: 1px solid #cadfd8;
  border-radius: 10px;
  padding: 0.6rem;
  display: grid;
  gap: 0.45rem;

  p {
    margin: 0.2rem 0 0;
    font-size: 0.81rem;
  }
}

[data-ui="row-action-buttons"] {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

[data-ui="row-action"] {
  border-radius: 999px;
  border: 1px solid #a8c8bc;
  background: #f4faf7;
  font: inherit;
  font-size: 0.81rem;
  font-weight: 700;
  color: #1c4f46;
  padding: 0.3rem 0.65rem;
  cursor: pointer;
  transition: background-color 120ms ease, border-color 120ms ease, transform 120ms ease;

  &:hover {
    background: #e9f4ef;
    border-color: #8fb5a6;
    transform: translateY(-1px);
  }

  &:focus-visible {
    outline: 2px solid #5eb6aa73;
    outline-offset: 2px;
  }

  &[data-tone="danger"] {
    border-color: #d38d84;
    background: var(--danger-soft);
    color: #8a2d24;

    &:hover {
      border-color: #c46d62;
      background: #ffd9d2;
    }
  }
}

[data-ui="modal-prompt"] {
  display: grid;
  gap: 0.55rem;
}

[data-ui="prompt-overlay"] {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 1rem;

  &[hidden] {
    display: none;
  }

  [data-ui="prompt-backdrop"] {
    position: absolute;
    inset: 0;
    background: rgba(20, 40, 36, 0.45);
    border: 0;
    padding: 0;
    margin: 0;
    width: 100%;
    cursor: pointer;
  }

  [data-ui="prompt-dialog"] {
    position: relative;
    z-index: 1;
    border: 1px solid #bed5cd;
    border-radius: 12px;
    padding: 1rem;
    width: min(24rem, 92vw);
    background: var(--surface-elevated);
    box-shadow: 0 24px 50px rgba(17, 39, 35, 0.22);

    h3 {
      margin: 0;
    }

    p {
      margin-top: 0.5rem;
    }
  }

  [data-ui="prompt-actions"] {
    margin-top: 0.85rem;
    display: flex;
    justify-content: flex-end;
    gap: 0.45rem;
  }
}

[data-ui="status-note"] {
  margin-top: 0.9rem;
  font-size: 0.84rem;
  color: #5a6f6b;

  a {
    color: inherit;
    font-weight: 700;
    text-underline-offset: 0.15rem;
  }

  &[data-state="error"] {
    color: #9c2f27;
    font-weight: 650;
  }

  &[data-state="success"] {
    color: #1f6d45;
    font-weight: 650;
  }
}

[data-ui="setup-flow"] {
  display: grid;
  gap: 0.6rem;
}

[data-ui="setup-mode"][hidden] {
  display: none;
}

[data-ui="context-grid"] {
  display: grid;
  gap: 0.7rem;
}

[data-ui="id-preview"] {
  margin: 0;
  display: grid;
  gap: 0.4rem;

  div {
    display: grid;
    grid-template-columns: minmax(7rem, 9rem) 1fr;
    gap: 0.4rem;
  }

  dt {
    font-weight: 700;
    color: #31534f;
  }

  dd {
    margin: 0;
    color: #29433f;
    font-family: "SF Mono", "Menlo", "Monaco", monospace;
    font-size: 0.82rem;
  }
}

code {
  font-family: "SF Mono", "Menlo", "Monaco", monospace;
  background: #e8f0ec;
  border-radius: 6px;
  padding: 0.08rem 0.3rem;
}

@media (min-width: 768px) {
  [data-ui="app-shell"] {
    padding: 1.8rem 1.4rem 2.6rem;
  }

  [data-ui="hero"] {
    padding: 1.35rem;
  }

  [data-ui="step-list"] {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  [data-ui="panel-grid"] {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.95rem;
  }

  [data-ui="context-grid"] {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  [data-ui="player-grid"] {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}