/* === UV-K5 Web Flasher — Apple Green Theme === */
/* Design by ChatGPT 🍏 — fresh, clean and accessible */
/* Notes:
   - Progress % is centered via .progress-label (absolute over .progress-bar)
   - You can hide the whole gauge from JS (display:none) after flashing
   - Optional fade helpers provided (.is-hidden, .fade) if you prefer opacity transitions
*/

/* ---------- Reset & base ---------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ---------- Color system ---------- */
:root {
  --primary-1: #7ED957; /* Apple green */
  --primary-2: #34C759; /* iOS green */
  --bg-grad: linear-gradient(135deg, #E9FBE6 0%, #CFF6C6 50%, #B9F2B2 100%);
  --text: #19361f;
  --muted: #45634d;
  --border: #d6ead3;
  --card: #ffffff;
}

/* ---------- Layout ---------- */
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg-grad);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.container {
  background: color-mix(in oklab, var(--card), #f0fff3 15%);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  max-width: 720px;
  width: 100%;
  padding: 40px;
}

/* ---------- Header ---------- */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.h1,
h1 {
  color: var(--primary-2);
  font-size: 28px;
  font-weight: 700;
}

.language-selector select {
  padding: 8px 12px;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: white;
  cursor: pointer;
  font-size: 14px;
  transition: border-color 0.3s;
}

.language-selector select:hover {
  border-color: var(--primary-2);
}

.subtitle {
  color: var(--muted);
  margin-bottom: 30px;
  font-size: 14px;
}

/* ---------- Sections & form controls ---------- */
.section {
  margin-bottom: 25px;
}

label {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
}

input[type="text"] {
  width: 100%;
  padding: 12px;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  transition: border-color 0.3s;
}

input[type="text"]:focus {
  outline: none;
  border-color: var(--primary-2);
}

/* ---------- Custom file input ---------- */
.file-input-wrapper {
  position: relative;
  width: 100%;
}

input[type="file"] {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.file-input-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: #f7fff5;
  cursor: pointer;
  transition: all 0.3s;
}

.file-input-label:hover {
  border-color: var(--primary-2);
  background: #e8fbe5;
}

.file-input-label.has-file {
  border-color: var(--primary-2);
  background: #e0f9d8;
}

.file-name {
  color: #666;
  font-size: 14px;
}

.file-name.has-file {
  color: #19361f;
  font-weight: 500;
}

.file-button {
  background: linear-gradient(135deg, var(--primary-1) 0%, var(--primary-2) 100%);
  color: #0d1b10;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
}

/* ---------- Buttons ---------- */
button {
  background: linear-gradient(135deg, var(--primary-1) 0%, var(--primary-2) 100%);
  color: #0d1b10;
  border: none;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  width: 100%;
  margin-top: 10px;
  box-shadow: 0 6px 24px rgba(52, 199, 89, 0.25);
}

button:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(52, 199, 89, 0.35);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ---------- Focus visibility ---------- */
:where(button, input, select, .file-input-label):focus-visible {
  outline: 3px solid #34C759;
  outline-offset: 2px;
  box-shadow: 0 0 0 6px rgba(52, 199, 89, 0.25);
}

/* ---------- Progress bar ---------- */
/* Container is toggled from JS: show when flashing, hide when done */
.progress-container {
  margin-top: 20px;
  display: none; /* shown programmatically: block */
}

.progress-bar {
  position: relative; /* anchor for centered label */
  width: 100%;
  height: 30px;
  background: #e0e0e0;
  border-radius: 15px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #7ED957 0%, #34C759 50%, #22a64b 100%);
  width: 0%;
  transition: width 0.3s;
}

/* Centered percentage text (not inside the fill) */
.progress-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 13px;
  color: #ffffff;
  text-shadow: 0 1px 2px rgba(0,0,0,0.25);
  pointer-events: none;
}

/* ---------- Log / console ---------- */
.log-container {
  margin-top: 25px;
}

.log-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.log-header h3 {
  color: var(--text);
  font-size: 16px;
}

.log-toggle {
  background: #f5f5f5;
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  color: #45634d;
  transition: background 0.2s;
}

.log-toggle:hover {
  background: #e0f4dc;
}

.log {
  background: #f7fff5;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 15px;
  max-height: 300px;
  overflow-y: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
  font-size: 13px;
  line-height: 1.6;
  display: none;
}

.log.visible {
  display: block;
}

.log-entry {
  margin-bottom: 4px;
  color: var(--text);
}

.log-entry.error {
  color: #d32f2f;
  font-weight: 600;
}

.log-entry.success {
  color: #2e7d32;
  font-weight: 600;
}

.log-entry.info {
  color: #1976d2;
}

/* ---------- Info block ---------- */
.info-box {
  background: #eefcf0;
  border: 1px solid #98e6a8;
  border-radius: 8px;
  padding: 12px;
  margin-top: 15px;
  color: #0f3b1d;
  font-size: 13px;
}

/* ---------- Accessibility helpers ---------- */
.sr-only {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Optional fade helpers ----------
   Add .fade to an element, then toggle .is-hidden from JS for smooth opacity.
   (We still recommend display:none after the fade completes if you want it removed from layout.)
*/
.fade {
  transition: opacity 300ms ease;
}
.fade.is-hidden {
  opacity: 0;
}

/* ---------- Dark mode (automatic) ---------- */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-grad: linear-gradient(135deg, #112114 0%, #0d1a10 100%);
    --text: #e7f6eb;
    --muted: #a7c9b1;
    --border: #22442a;
    --card: #0f1b12;
  }

  .container {
    border-color: var(--border);
  }

  .log,
  .file-input-label {
    background: #122416;
  }

  .info-box {
    background: #0f2616;
    border-color: #1e5c30;
    color: #c9f2d3;
  }

  button,
  .file-button {
    color: #06230e;
    box-shadow: 0 8px 28px rgba(126, 217, 87, 0.25);
  }
}