/* Popoto Virtual Ocean portal — styled from the Popoto Modem design tokens
 * (popoto-modem-brand-style-guide, version 2026.06) */

:root {
  --aquamarine: #77e0bf;
  --popoto-lightblue: #d6f5ff;
  --popoto-blue: #2777c3;
  --acoustic-blue: #21608a;
  --popoto-darkblue: #234c6f;
  --clamshell-white: #f2f4f7;
  --dolphin-grey: #a1a1a1;
  --manta-grey: #727272;
  --transducer-grey: #434343;
  --deepsea-navy: #282b34;

  --primary-color: var(--popoto-blue);
  --secondary-color: var(--acoustic-blue);
  --font-color: var(--transducer-grey);
  --bg-color: #ffffff;
  --off-bg-color: var(--clamshell-white);
  --heading-color: var(--transducer-grey);
  --font-family-base: "Montserrat", Arial, sans-serif;
  --font-family-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-family-base);
  color: var(--font-color);
  background: var(--off-bg-color);
  line-height: 1.5;
}

.topbar {
  background: var(--bg-color);
  border-bottom: 1px solid #e2e6ec;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.topbar img { height: 36px; display: block; }

.topbar .divider {
  width: 1px; height: 28px; background: #d5dae2;
}

.topbar .app-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--acoustic-blue);
  letter-spacing: 0.02em;
}

main {
  max-width: 720px;
  margin: 3rem auto 4rem;
  padding: 0 1.5rem;
}

h1 {
  color: var(--heading-color);
  font-size: 1.6rem;
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.75rem;
}

p.lead { margin: 0 0 1.5rem; }

.card {
  background: var(--bg-color);
  border: 1px solid #e2e6ec;
  border-radius: 10px;
  padding: 1.5rem;
  margin-top: 1.25rem;
  box-shadow: 0 1px 3px rgba(40, 43, 52, 0.06);
}

.card h2 {
  margin: 0 0 1rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--acoustic-blue);
}

button, .btn {
  font-family: var(--font-family-base);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.6rem 1.4rem;
  border-radius: 8px;
  border: none;
  background: var(--popoto-blue);
  color: #ffffff;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

button:hover, .btn:hover { background: var(--acoustic-blue); }

.btn-secondary {
  background: transparent;
  color: var(--acoustic-blue);
  border: 1px solid var(--acoustic-blue);
}

.btn-secondary:hover { background: var(--popoto-lightblue); }

.modems { display: flex; gap: 1rem; flex-wrap: wrap; }

.modem {
  flex: 1 1 240px;
  background: var(--bg-color);
  border: 1px solid #e2e6ec;
  border-radius: 10px;
  padding: 1.25rem;
  text-align: center;
  box-shadow: 0 1px 3px rgba(40, 43, 52, 0.06);
}

.modem .name {
  font-weight: 600;
  color: var(--heading-color);
  margin-bottom: 0.15rem;
}

.modem .pos {
  font-size: 0.85rem;
  color: var(--manta-grey);
  margin-bottom: 0.9rem;
}

.field-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.field {
  flex: 1 1 140px;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.field label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--manta-grey);
  letter-spacing: 0.02em;
}

.field input {
  font-family: var(--font-family-base);
  font-size: 0.95rem;
  padding: 0.45rem 0.6rem;
  border: 1px solid #cfd5de;
  border-radius: 6px;
  color: var(--font-color);
}

.field input:focus {
  outline: 2px solid var(--popoto-lightblue);
  border-color: var(--popoto-blue);
}

.meta {
  color: var(--manta-grey);
  font-size: 0.85rem;
  margin-top: 1.25rem;
}

.error {
  color: #b3261e;
  font-size: 0.9rem;
  margin-top: 0.75rem;
}

code {
  font-family: var(--font-family-mono);
  background: var(--popoto-lightblue);
  color: var(--popoto-darkblue);
  border-radius: 4px;
  padding: 0.1rem 0.35rem;
  font-size: 0.9em;
}

.actions { margin-top: 1.5rem; display: flex; gap: 0.75rem; }