:root {
  --installer-accent: #41d6c3;
  --installer-accent-2: #6ea8ff;
  --installer-danger: #ffb75e;
  --installer-panel: rgba(9, 25, 38, 0.86);
}

.installer-page { display: grid; gap: 24px; }
.installer-hero { display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: center; overflow: hidden; position: relative; }
.installer-hero::after { content: ""; position: absolute; width: 340px; height: 340px; right: -120px; top: -180px; background: radial-gradient(circle, rgba(65,214,195,.22), transparent 68%); pointer-events: none; }
.hero-copy { position: relative; z-index: 1; }
.hero-copy h1 { max-width: 850px; margin-bottom: 14px; }
.compatibility-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.compatibility-row span { padding: 9px 12px; border: 1px solid rgba(130,178,207,.22); background: rgba(9,25,38,.38); border-radius: 12px; font-size: .88rem; }
.board-badge { min-width: 210px; display: grid; justify-items: center; gap: 6px; padding: 24px; border: 1px solid rgba(65,214,195,.28); border-radius: 22px; background: linear-gradient(145deg, rgba(65,214,195,.12), rgba(110,168,255,.07)); text-align: center; position: relative; z-index: 1; }
.board-icon { width: 94px; height: 64px; display: grid; place-items: center; border: 2px solid var(--installer-accent); border-radius: 12px; font-weight: 900; letter-spacing: .08em; box-shadow: 0 0 35px rgba(65,214,195,.16); }
.board-badge small { opacity: .72; }

.installer-grid { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(280px, .75fr); gap: 24px; }
.install-card, .warning-card { min-width: 0; }
.step-kicker, .warning-label { display: inline-block; text-transform: uppercase; letter-spacing: .15em; font-weight: 800; font-size: .73rem; color: var(--installer-accent); margin-bottom: 5px; }
.version-pill { padding: 7px 11px; border-radius: 999px; border: 1px solid rgba(65,214,195,.3); color: var(--installer-accent); font-weight: 800; }

.selector-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 14px; margin: 20px 0 14px; }
.firmware-field { display: grid; gap: 7px; min-width: 0; }
.firmware-field > span { font-weight: 850; font-size: .86rem; }
.firmware-field select { width: 100%; min-height: 50px; padding: 0 44px 0 14px; border-radius: 13px; border: 1px solid rgba(130,178,207,.24); color: inherit; background: rgba(7,19,30,.72); font: inherit; font-weight: 750; }
.firmware-field select:focus { outline: 3px solid rgba(65,214,195,.2); border-color: var(--installer-accent); }
.firmware-field select:disabled { opacity: .58; cursor: not-allowed; }
.firmware-field option { color: #07131e; background: #fff; }
.selection-summary { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; align-items: baseline; padding: 16px; border-radius: 14px; background: linear-gradient(135deg, rgba(65,214,195,.11), rgba(110,168,255,.07)); border: 1px solid rgba(65,214,195,.24); }
.selection-summary strong { color: var(--installer-accent); }
.selection-summary span { font-weight: 850; }
.selection-summary p { grid-column: 1 / -1; margin: 5px 0 0; opacity: .78; }

.browser-status { margin: 14px 0 18px; padding: 12px 14px; border-radius: 12px; font-weight: 700; }
.status-ready { background: rgba(65,214,195,.1); border: 1px solid rgba(65,214,195,.28); color: #9af1e4; }
.status-warning { background: rgba(255,183,94,.1); border: 1px solid rgba(255,183,94,.3); color: #ffd6a4; }
.before-list { display: grid; gap: 12px; margin: 18px 0; }
.before-list > div { display: grid; grid-template-columns: 38px 1fr; gap: 12px; align-items: start; }
.before-list > div > span { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 10px; background: rgba(110,168,255,.12); border: 1px solid rgba(110,168,255,.24); color: #b9d1ff; font-weight: 900; }
.before-list p { margin: 5px 0 0; }
.flash-panel { padding: 22px; border-radius: 18px; background: linear-gradient(145deg, rgba(65,214,195,.08), rgba(110,168,255,.06)); border: 1px solid rgba(65,214,195,.24); text-align: center; }
esp-web-install-button { display: block; --esp-tools-button-color: transparent; --esp-tools-button-text-color: inherit; --esp-tools-button-border-radius: 14px; }
.flash-button { width: min(100%, 520px); min-height: 62px; border: 0; border-radius: 14px; padding: 16px 22px; cursor: pointer; color: #031018; background: linear-gradient(135deg, var(--installer-accent), #71aaff); font: inherit; font-weight: 900; font-size: 1.02rem; box-shadow: 0 16px 38px rgba(65,214,195,.18); transition: transform .18s ease, filter .18s ease; }
.flash-button:hover { transform: translateY(-2px); filter: brightness(1.06); }
.flash-button:focus-visible { outline: 3px solid rgba(255,255,255,.75); outline-offset: 4px; }
.flash-symbol { margin-right: 8px; font-size: 1.25em; }
.unsupported-message { padding: 15px; border-radius: 12px; border: 1px solid rgba(255,183,94,.35); background: rgba(255,183,94,.1); color: #ffe0b7; text-align: left; }
.privacy-note { margin: 13px auto 0; max-width: 650px; opacity: .72; font-size: .83rem; }
.button-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 18px; }
.secondary-action { text-align: center; }
.text-action { font-weight: 800; }
.warning-card { border-color: rgba(255,183,94,.24); background: linear-gradient(180deg, rgba(255,183,94,.075), transparent 48%); }
.warning-card h2 { margin-top: 4px; }
.erase-note, .sd-note, .legacy-note { display: grid; gap: 5px; margin-top: 18px; padding: 14px; border-radius: 13px; background: rgba(255,255,255,.035); border: 1px solid rgba(255,255,255,.08); }
.erase-note strong, .sd-note strong, .legacy-note strong { color: #fff; }
.erase-note span, .sd-note span, .legacy-note span { opacity: .76; font-size: .9rem; }

.variant-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.variant-grid article { padding: 19px; border: 1px solid rgba(130,178,207,.16); border-radius: 16px; background: rgba(7,19,30,.3); }
.variant-grid h3 { margin: 10px 0 8px; }
.variant-grid p { margin: 0; opacity: .76; }
.variant-tag { display: inline-flex; padding: 6px 9px; border-radius: 999px; color: var(--installer-accent); background: rgba(65,214,195,.09); border: 1px solid rgba(65,214,195,.24); font-size: .73rem; font-weight: 900; text-transform: uppercase; letter-spacing: .1em; }

.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.process-grid article { padding: 18px; border: 1px solid rgba(130,178,207,.15); border-radius: 16px; background: rgba(7,19,30,.32); }
.process-grid article > span { display: inline-block; color: var(--installer-accent); font-weight: 900; font-size: .78rem; letter-spacing: .12em; margin-bottom: 18px; }
.process-grid h3 { margin: 0 0 8px; }
.process-grid p { margin: 0; opacity: .76; }
.troubleshooting-card details { border-top: 1px solid rgba(130,178,207,.15); padding: 0; }
.troubleshooting-card details:last-child { border-bottom: 1px solid rgba(130,178,207,.15); }
.troubleshooting-card summary { cursor: pointer; list-style: none; padding: 17px 4px; font-weight: 850; }
.troubleshooting-card summary::-webkit-details-marker { display: none; }
.troubleshooting-card summary::after { content: "+"; float: right; color: var(--installer-accent); font-size: 1.35rem; }
.troubleshooting-card details[open] summary::after { content: "−"; }
.troubleshooting-card details p { margin: 0 4px 18px; max-width: 900px; opacity: .78; }
.safety-card { border-color: rgba(110,168,255,.22); }
.safety-card p { margin-bottom: 0; }

@media (max-width: 900px) {
  .installer-hero { grid-template-columns: 1fr; }
  .board-badge { width: 100%; min-width: 0; grid-template-columns: auto 1fr; justify-items: start; text-align: left; }
  .board-badge small { grid-column: 2; }
  .installer-grid { grid-template-columns: 1fr; }
  .variant-grid, .process-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .selector-grid { grid-template-columns: 1fr; }
  .selection-summary { grid-template-columns: 1fr; }
  .selection-summary p { grid-column: auto; }
}

@media (max-width: 560px) {
  .installer-page { gap: 16px; }
  .installer-hero, .install-card, .warning-card, .identify-card, .process-card, .troubleshooting-card, .safety-card { padding: 18px; }
  .compatibility-row { display: grid; }
  .compatibility-row span { width: 100%; }
  .board-badge { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .board-badge small { grid-column: auto; }
  .flash-panel { padding: 15px; }
  .button-row { display: grid; }
}

/* CYD + Waveshare 7-inch selector additions */
.selector-grid.three-fields {
  grid-template-columns: 1fr 1fr 1.25fr;
}
.variant-grid.four-variants {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.waveshare-card {
  border-color: rgba(110,168,255,.32) !important;
  background: linear-gradient(145deg, rgba(110,168,255,.10), rgba(65,214,195,.05)) !important;
}
.firmware-pending {
  display: grid;
  gap: 10px;
  justify-items: center;
  max-width: 700px;
  margin: 0 auto;
}
.firmware-pending strong {
  color: #ffd6a4;
  font-size: 1.03rem;
}
.firmware-pending p {
  margin: 0;
  max-width: 650px;
  opacity: .82;
}
.disabled-flash,
.disabled-flash:hover {
  cursor: not-allowed;
  transform: none;
  filter: none;
  opacity: .54;
  box-shadow: none;
}

@media (max-width: 1100px) {
  .selector-grid.three-fields { grid-template-columns: 1fr 1fr; }
  .selector-grid.three-fields .firmware-field:last-child { grid-column: 1 / -1; }
  .variant-grid.four-variants { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  .selector-grid.three-fields { grid-template-columns: 1fr; }
  .selector-grid.three-fields .firmware-field:last-child { grid-column: auto; }
  .variant-grid.four-variants { grid-template-columns: 1fr; }
}

/* HW-458 CYD addition */
.variant-grid.five-variants {
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}
.hw458-card {
  border-color: rgba(255, 183, 94, .38) !important;
  background: linear-gradient(145deg, rgba(255, 183, 94, .11), rgba(65, 214, 195, .04)) !important;
}
.hw458-card .variant-tag {
  color: #ffd6a4;
  border-color: rgba(255, 183, 94, .34);
  background: rgba(255, 183, 94, .10);
}
@media (max-width: 680px) {
  .variant-grid.five-variants { grid-template-columns: 1fr; }
}