/* =========================================================
   MEGN — Control de Gasolina
   Estilo Windows 11 / Modo oscuro
   ========================================================= */

:root {
  --bg: rgb(32, 32, 32);
  --panel: rgb(45, 45, 45);
  --panel-alt: rgb(40, 40, 40);
  --input: rgb(55, 55, 55);
  --input-border: rgb(75, 75, 75);
  --input-border-focus: rgb(97, 175, 239);
  --btn: rgb(70, 70, 70);
  --btn-hover: rgb(85, 85, 85);
  --text: rgb(230, 230, 230);
  --text-muted: rgb(170, 170, 170);
  --accent: rgb(97, 175, 239);
  --accent-strong: rgb(0, 120, 212);
  --danger: rgb(255, 99, 99);
  --success: rgb(108, 203, 130);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-panel: 0 4px 16px rgba(0, 0, 0, 0.3);
  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Segoe UI Variable", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.hidden {
  display: none !important;
}

button {
  font-family: inherit;
}

/* ===================== TOPBAR ===================== */

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(32, 32, 32, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.topbar-title {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex: 1;
}

.brand-mark {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.5px;
  color: var(--accent);
}

.brand-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.topbar-user {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 6px 12px;
  background: var(--panel);
  border-radius: var(--radius-sm);
}

.btn-icon {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 1.2rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition);
}

.btn-icon:hover,
.btn-icon:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

/* ===================== MENÚ LATERAL ===================== */

.side-menu {
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 0;
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--shadow-soft);
  z-index: 50;
  display: flex;
  flex-direction: column;
  transition: width 260ms cubic-bezier(0.16, 1, 0.3, 1);
}

.side-menu.open {
  width: 280px;
}

.side-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  white-space: nowrap;
}

.side-menu-list {
  list-style: none;
  margin: 0;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.side-menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 12px 14px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.95rem;
  text-align: left;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition);
}

.side-menu-item:hover,
.side-menu-item:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

.side-menu-item.side-menu-danger {
  color: var(--danger);
}

.side-menu-divider {
  height: 1px;
  margin: 8px 6px;
  background: rgba(255, 255, 255, 0.08);
}

.menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
  z-index: 40;
}

.menu-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

/* ===================== LAYOUT PRINCIPAL ===================== */

.app-main {
  max-width: 560px;
  margin: 0 auto;
  padding: 16px 16px 48px;
}

.screen {
  animation: fadeIn 260ms ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-header {
  margin: 12px 4px 20px;
}

.page-header h2 {
  margin: 0 0 4px;
  font-size: 1.4rem;
}

.page-subtitle {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ===================== LOGIN ===================== */

.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--panel);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 32px 28px;
  animation: fadeIn 320ms ease;
}

.login-logo {
  text-align: center;
  margin-bottom: 24px;
}

.login-logo-mark {
  width: 56px;
  height: 56px;
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
  font-weight: 700;
  font-size: 1.5rem;
  color: #fff;
  box-shadow: var(--shadow-panel);
}

.login-logo h1 {
  margin: 0 0 4px;
  font-size: 1.6rem;
  letter-spacing: 0.5px;
}

.login-subtitle {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.login-footer {
  margin: 24px 0 0;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ===================== FORMULARIOS ===================== */

.form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel {
  background: var(--panel);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  box-shadow: var(--shadow-panel);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="time"],
select {
  background: var(--input);
  border: 1px solid var(--input-border);
  color: var(--text);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  width: 100%;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  -webkit-appearance: none;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--input-border-focus);
  box-shadow: 0 0 0 3px rgba(97, 175, 239, 0.18);
}

input[readonly] {
  color: var(--text-muted);
  cursor: not-allowed;
}

select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8'><path d='M1 1l5 5 5-5' stroke='%23aaaaaa' stroke-width='1.6' fill='none' fill-rule='evenodd'/></svg>");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

/* ===================== BOTONES ===================== */

.btn {
  background: var(--btn);
  color: var(--text);
  border: none;
  padding: 13px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform 120ms ease, box-shadow var(--transition);
}

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

.btn:active {
  transform: scale(0.98);
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background: var(--accent-strong);
  color: #fff;
  box-shadow: 0 4px 14px rgba(0, 120, 212, 0.35);
}

.btn-primary:hover {
  background: rgb(20, 135, 225);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ===================== MENSAJES ===================== */

.form-message {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  line-height: 1.4;
  animation: fadeIn 200ms ease;
}

.form-message.error {
  background: rgba(255, 99, 99, 0.12);
  border: 1px solid rgba(255, 99, 99, 0.35);
  color: var(--danger);
}

.form-message.success {
  background: rgba(108, 203, 130, 0.12);
  border: 1px solid rgba(108, 203, 130, 0.35);
  color: var(--success);
}

/* ===================== TOAST ===================== */

.toast-container {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: min(92vw, 380px);
  pointer-events: none;
}

.toast {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
  font-size: 0.88rem;
  border-left: 4px solid var(--accent);
  animation: toastIn 220ms ease;
}

.toast.toast-error {
  border-left-color: var(--danger);
}

.toast.toast-success {
  border-left-color: var(--success);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===================== FOTOS ===================== */

.foto-field input[type="file"] {
  display: none;
}

.foto-upload-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px;
  background: var(--input);
  border: 1.5px dashed var(--input-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  cursor: pointer;
  font-size: 0.9rem;
  transition: border-color var(--transition), background var(--transition);
}

.foto-upload-btn:hover {
  border-color: var(--accent);
  background: rgb(60, 60, 60);
}

.foto-preview-wrap {
  position: relative;
  margin-top: 4px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
  animation: fadeIn 220ms ease;
}

.foto-preview {
  display: block;
  width: 100%;
  max-height: 260px;
  object-fit: cover;
  background: var(--panel-alt);
}

.foto-remove {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  border: none;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  cursor: pointer;
  transition: background var(--transition);
}

.foto-remove:hover {
  background: rgba(0, 0, 0, 0.8);
}

/* ===================== INICIO / CARDS ===================== */

.card-grid {
  display: grid;
  gap: 12px;
}

.action-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--panel);
  border: none;
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-panel);
  cursor: pointer;
  text-align: left;
  color: var(--text);
  transition: transform 160ms ease, background var(--transition);
}

.action-card:hover {
  background: rgb(52, 52, 52);
  transform: translateY(-2px);
}

.action-card-icon {
  font-size: 1.8rem;
}

.action-card-text h3 {
  margin: 0 0 4px;
  font-size: 1rem;
}

.action-card-text p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ===================== RESPONSIVE ===================== */

@media (max-width: 480px) {
  .form-row {
    grid-template-columns: 1fr;
  }

  .login-card {
    padding: 26px 20px;
  }

  .app-main {
    padding: 12px 12px 40px;
  }

  .side-menu.open {
    width: 82vw;
    max-width: 300px;
  }
}