:root {
  --accent: #0d47a1;
  --accent-hover: #1266e2;
  --success-bg: #e6ffd9;
  --success-border: #2f9e0f;
  --success-fg: #1b7c04;
  --error-bg: #ffdddd;
  --error-border: #c0392b;
  --error-fg: #b3261e;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #7ea5d9;
    --accent-hover: #9ab9e3;
    --success-bg: #1c3a1d;
    --success-border: #81c784;
    --success-fg: #a5d6a7;
    --error-bg: #3d1b1b;
    --error-border: #ef5350;
    --error-fg: #f0a6a6;
  }
}

/* :::::: PAGE LAYOUT :::::: */

main.content {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  grid-template-areas:
    "data data"
    "qr controls";
  grid-column-gap: 1.5rem;
  grid-row-gap: 1rem;
  align-items: start;
}

.data { grid-area: data; }
.qr { grid-area: qr; justify-self: center; }
.controls { grid-area: controls; }

/* :::::: PERSONAL DATA :::::: */

.data h2 {
  margin-top: 0;
}

.data__inputs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 1rem;
}

.data__inputs input {
  width: 100%;
}

.data__inputs textarea {
  width: 100%;
  font: inherit;
  min-height: 5rem;
  resize: vertical;
}

.data__note-label {
  grid-column: 1 / -1;
}

.data__details {
  grid-column: 1 / -1;
}

.data__details summary {
  cursor: pointer;
  font-weight: 600;
  padding: 0.35rem 0;
  color: var(--accent);
}

.data__address {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 1rem;
  margin-top: 0.5rem;
}

.data__address--full {
  grid-column: 1 / -1;
}

.data__details-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 1rem;
  margin-top: 0.5rem;
}

.data__details-grid--full {
  grid-column: 1 / -1;
}

.data__social {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 1rem;
  margin-top: 0.5rem;
}

.data__inputs input:focus-visible {
  outline-color: var(--accent);
}

.data__input--error,
.data__input--error:focus-visible {
  background-color: var(--error-bg);
  border-color: var(--error-border);
  outline-color: var(--error-border);
}

.data__input--succes,
.data__input--succes:focus-visible {
  background-color: var(--success-bg);
  border-color: var(--success-border);
  outline-color: var(--success-border);
}

.data__message {
  margin-top: 0.5rem;
  font-size: 0.95rem;
  color: var(--text-light);
}

.data__message--error {
  color: var(--error-fg);
  font-weight: 600;
}

.data__message--success {
  color: var(--success-fg);
  font-weight: 600;
}

/* :::::: QR CODE :::::: */

.qr {
  width: 280px;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent-bg);
  border: 1px dashed var(--border);
  border-radius: var(--standard-border-radius);
  margin-bottom: 1rem;
}

.qr::before {
  content: "QR code";
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.8rem;
}

.qr:has(> *)::before {
  content: none;
  display: none;
}

/* :::::: BUTTONS :::::: */

.btn-panel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.btn-panel > button {
  flex: 1 1 auto;
  margin: 0;
}

.btn-panel__download {
  display: flex;
  flex: 2 1 auto;
  gap: 0;
}

.btn-panel__download button {
  border-radius: var(--standard-border-radius) 0 0 var(--standard-border-radius);
  flex: 3 1 auto;
  margin: 0;
}

.btn-panel__download select {
  width: auto;
  flex: 0 0 5rem;
  margin: 0;
  border-radius: 0 var(--standard-border-radius) var(--standard-border-radius) 0;
  border-left: 0;
  text-transform: uppercase;
  padding-inline-start: 0.3rem;
}

/* :::::: OPTIONS :::::: */

.options {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.options fieldset {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.options select {
  flex: 1 1 auto;
  width: auto;
  flex-basis: 60%;
  margin: 0;
}

.options input[type="color"] {
  width: 3rem;
  margin: 0;
  flex: 0 0 3rem;
  cursor: pointer;
}

/* :::::: QR MODAL :::::: */

.qr-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.qr-modal[hidden] {
  display: none;
}

.qr-modal__overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.6);
}

.qr-modal__content {
  position: relative;
  background-color: var(--bg);
  border-radius: var(--standard-border-radius);
  padding: 1.5rem;
  max-width: 92vw;
  max-height: 92vh;
  overflow: auto;
}

.qr-modal__close {
  position: fixed;
  top: 0.75rem;
  right: 0.75rem;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  margin: 0;
  padding: 0 0 0.1rem;
  line-height: 1;
  font-size: 1.4rem;
  border-radius: 50%;
}

.qr-modal__qr {
  display: flex;
  align-items: center;
  justify-content: center;
}

.qr-modal__qr svg.qr-modal__canvas {
  width: min(85vw, 85vh);
  height: min(85vw, 85vh);
}

.qr-modal__label {
  margin: 0.9rem 0 0;
  text-align: center;
  color: var(--text-light);
}

body.modal-open {
  overflow: hidden;
}

/* :::::: RESPONSIVE :::::: */

@media only screen and (max-width: 720px) {
  main.content {
    grid-template-columns: 1fr;
    grid-template-areas:
      "data"
      "buttons"
      "qr"
      "options";
  }

  main.content:has(.qr > *) {
    grid-template-areas:
      "qr"
      "data"
      "buttons"
      "options";
  }

  .controls {
    display: contents;
  }

  .btn-panel {
    grid-area: buttons;
  }

  .options {
    grid-area: options;
  }

  .data__inputs {
    grid-template-columns: 1fr;
  }

  .data__address {
    grid-template-columns: 1fr;
  }

  .data__details-grid {
    grid-template-columns: 1fr;
  }

  .data__social {
    grid-template-columns: 1fr;
  }

  .qr {
    justify-self: center;
  }

  .options fieldset {
    flex-wrap: wrap;
  }

  .options select {
    flex-basis: 100%;
  }
}