/* ============================================================
   Estética Windows 95/98 — funcional, no solo decorativa.
   Colores base y bordes 3D reutilizables como custom properties.
   ============================================================ */
:root {
  --win-gray: #c0c0c0;
  --win-gray-light: #dfdfdf;
  --win-gray-dark: #808080;
  --win-gray-darker: #404040;
  --win-white: #ffffff;
  --win-black: #000000;
  --win-blue-start: #000080;
  --win-blue-end: #1084d0;
  --win-desktop: #008080;
  --accent-ok: #005a00;
  --accent-error: #a10000;
  --accent-info: #00376b;
  --focus-ring: #000080;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--win-desktop);
  font-family: "MS Sans Serif", "Pixelated MS Sans Serif", Tahoma, Verdana, Arial, sans-serif;
  font-size: 13px;
  color: var(--win-black);
}

/* --- Bordes 3D reutilizables ---------------------------------- */
.win98-raised {
  border-top: 2px solid var(--win-white);
  border-left: 2px solid var(--win-white);
  border-right: 2px solid var(--win-gray-darker);
  border-bottom: 2px solid var(--win-gray-darker);
  box-shadow: inset 1px 1px 0 var(--win-gray-light), inset -1px -1px 0 var(--win-gray-dark);
}

.win98-sunken {
  border-top: 2px solid var(--win-gray-darker);
  border-left: 2px solid var(--win-gray-darker);
  border-right: 2px solid var(--win-white);
  border-bottom: 2px solid var(--win-white);
  box-shadow: inset 1px 1px 0 var(--win-gray-dark), inset -1px -1px 0 var(--win-gray-light);
}

/* --- Escritorio + ventana --------------------------------------- */
.win98-desktop {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 24px 12px;
}

.win98-window {
  width: 100%;
  max-width: 780px;
  background: var(--win-gray);
  border-top: 2px solid var(--win-gray-light);
  border-left: 2px solid var(--win-gray-light);
  border-right: 2px solid var(--win-gray-darker);
  border-bottom: 2px solid var(--win-gray-darker);
  box-shadow: 3px 3px 12px rgba(0, 0, 0, 0.4);
}

.win98-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 4px 6px;
  background: linear-gradient(90deg, var(--win-blue-start), var(--win-blue-end));
  color: var(--win-white);
  font-weight: bold;
}

.win98-titlebar-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.win98-titlebar-controls {
  display: flex;
  gap: 3px;
  flex-shrink: 0;
}

.win98-titlebar-btn {
  width: 18px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--win-gray);
  color: var(--win-black);
  font-size: 11px;
  line-height: 1;
  border-top: 1px solid var(--win-white);
  border-left: 1px solid var(--win-white);
  border-right: 1px solid var(--win-gray-darker);
  border-bottom: 1px solid var(--win-gray-darker);
  user-select: none;
}

.win98-body {
  padding: 12px;
}

/* --- Grupos / fieldsets ------------------------------------------ */
fieldset.win98-group {
  border: 2px groove var(--win-gray);
  margin: 0 0 12px 0;
  padding: 10px;
}

fieldset.win98-group--nested {
  margin-top: 10px;
  margin-bottom: 0;
}

legend {
  padding: 0 4px;
  font-weight: bold;
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 16px;
}

.field-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.field-row--checkbox {
  grid-column: 1 / -1;
}

label {
  font-weight: normal;
}

input[type="text"],
input[type="email"],
input[type="tel"],
select {
  font-family: inherit;
  font-size: 13px;
  padding: 3px 4px;
  background: var(--win-white);
  border-top: 2px solid var(--win-gray-darker);
  border-left: 2px solid var(--win-gray-darker);
  border-right: 2px solid var(--win-white);
  border-bottom: 2px solid var(--win-white);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
select:focus,
input[type="file"]:focus {
  outline: 1px dotted var(--focus-ring);
  outline-offset: 1px;
}

input.invalid {
  background: #fff0f0;
  outline: 1px solid var(--accent-error);
}

.checkbox-label,
.radio-label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-right: 16px;
}

.radio-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 8px;
}

.field-error {
  color: var(--accent-error);
  font-size: 12px;
  min-height: 14px;
}

/* --- Documentos --------------------------------------------------- */
.doc-row {
  padding: 6px 0;
  border-bottom: 1px solid var(--win-gray-dark);
}

.doc-row:last-child {
  border-bottom: none;
}

.doc-row-main {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.doc-row-main label {
  flex: 1 1 260px;
  min-width: 200px;
}

.doc-hint {
  display: block;
  font-size: 11px;
  color: var(--win-gray-darker);
  font-weight: normal;
}

input[type="file"] {
  font-family: inherit;
  font-size: 12px;
  max-width: 220px;
}

.doc-status {
  font-weight: bold;
  padding: 2px 6px;
  white-space: nowrap;
}

.doc-status--ok {
  color: var(--accent-ok);
}

.doc-status--missing {
  color: var(--accent-error);
}

.doc-status--na {
  color: var(--win-gray-darker);
}

/* --- Estado general ------------------------------------------------ */
.status-banner {
  padding: 8px;
  font-weight: bold;
  text-align: center;
  border: 2px solid;
}

.status-banner--ok {
  background: #dcffdc;
  color: var(--accent-ok);
  border-color: var(--accent-ok);
}

.status-banner--incomplete {
  background: #fff6d5;
  color: #6b4e00;
  border-color: #6b4e00;
}

.form-message {
  margin-top: 8px;
  min-height: 16px;
  font-weight: bold;
}

.form-message--ok {
  color: var(--accent-ok);
}

.form-message--error {
  color: var(--accent-error);
}

.form-message--info {
  color: var(--accent-info);
}

/* --- Botones --------------------------------------------------- */
.win98-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.win98-button {
  font-family: inherit;
  font-size: 13px;
  padding: 6px 14px;
  background: var(--win-gray);
  border-top: 2px solid var(--win-white);
  border-left: 2px solid var(--win-white);
  border-right: 2px solid var(--win-gray-darker);
  border-bottom: 2px solid var(--win-gray-darker);
  box-shadow: inset 1px 1px 0 var(--win-gray-light), inset -1px -1px 0 var(--win-gray-dark);
  cursor: pointer;
  min-width: 160px;
}

.win98-button:active:not(:disabled),
.win98-button.is-pressed {
  border-top: 2px solid var(--win-gray-darker);
  border-left: 2px solid var(--win-gray-darker);
  border-right: 2px solid var(--win-white);
  border-bottom: 2px solid var(--win-white);
  box-shadow: inset 1px 1px 0 var(--win-gray-dark), inset -1px -1px 0 var(--win-gray-light);
  padding: 7px 13px 5px 15px;
}

.win98-button:focus-visible {
  outline: 1px dotted var(--win-black);
  outline-offset: -4px;
}

.win98-button:disabled {
  color: var(--win-gray-dark);
  cursor: default;
  text-shadow: 1px 1px 0 var(--win-gray-light);
}

.win98-button--primary {
  font-weight: bold;
}

/* --- Resultado envío --------------------------------------------- */
.result-panel {
  margin-top: 12px;
  text-align: center;
}

.result-panel--ok #result-message {
  color: var(--accent-ok);
  font-weight: bold;
}

.result-panel--error #result-message {
  color: var(--accent-error);
  font-weight: bold;
}

/* --- Barra de estado ------------------------------------------------ */
.win98-statusbar {
  display: flex;
  padding: 3px 6px;
  border-top: 1px solid var(--win-gray-dark);
}

.win98-statusbar-cell {
  flex: 1;
  padding: 2px 8px;
  border-top: 1px solid var(--win-gray-darker);
  border-left: 1px solid var(--win-gray-darker);
  border-right: 1px solid var(--win-white);
  border-bottom: 1px solid var(--win-white);
  font-size: 12px;
}

/* --- Responsive ----------------------------------------------------- */
@media (max-width: 560px) {
  .win98-desktop {
    padding: 0;
  }
  .win98-window {
    border-width: 0;
    box-shadow: none;
  }
  .field-grid {
    grid-template-columns: 1fr;
  }
  .win98-button {
    min-width: 0;
    flex: 1 1 auto;
  }
  input[type="file"] {
    max-width: 100%;
  }
}