:root {
  --surface-0: #f5f4ef;
  --surface-1: #efeee8;
  --surface-2: #ffffff;
  --text-primary: #1f1e1c;
  --text-secondary: #5f5e5a;
  --text-muted: #888780;
  --border: rgba(31, 30, 28, 0.12);
  --border-strong: rgba(31, 30, 28, 0.22);
  --bg-accent: #e6f1fb;
  --text-accent: #185fa5;
  --border-accent: #85b7eb;
  --bg-danger: #fcebeb;
  --text-danger: #a32d2d;
  --fill-danger: #e24b4a;
  --border-danger: #f09595;
  --bg-warning: #faeeda;
  --text-warning: #854f0b;
  --fill-warning: #ef9f27;
  --bg-success: #eaf3de;
  --text-success: #3b6d11;
  --fill-success: #639922;
  --fill-primary: #1f1e1c;
  --on-primary: #ffffff;
  --radius: 8px;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-voice: Georgia, "Times New Roman", serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --surface-0: #1a1a19;
    --surface-1: #242422;
    --surface-2: #2c2c2a;
    --text-primary: #f1efe8;
    --text-secondary: #b4b2a9;
    --text-muted: #888780;
    --border: rgba(241, 239, 232, 0.12);
    --border-strong: rgba(241, 239, 232, 0.24);
    --bg-accent: #0c447c;
    --text-accent: #b5d4f4;
    --border-accent: #378add;
    --bg-danger: #501313;
    --text-danger: #f7c1c1;
    --fill-danger: #e24b4a;
    --border-danger: #a32d2d;
    --bg-warning: #412402;
    --text-warning: #fac775;
    --fill-warning: #ef9f27;
    --bg-success: #173404;
    --text-success: #c0dd97;
    --fill-success: #639922;
    --fill-primary: #f1efe8;
    --on-primary: #1f1e1c;
  }
}

:root[data-theme="dark"] {
  --surface-0: #1a1a19;
  --surface-1: #242422;
  --surface-2: #2c2c2a;
  --text-primary: #f1efe8;
  --text-secondary: #b4b2a9;
  --text-muted: #888780;
  --border: rgba(241, 239, 232, 0.12);
  --border-strong: rgba(241, 239, 232, 0.24);
  --bg-accent: #0c447c;
  --text-accent: #b5d4f4;
  --border-accent: #378add;
  --bg-danger: #501313;
  --text-danger: #f7c1c1;
  --fill-danger: #e24b4a;
  --border-danger: #a32d2d;
  --bg-warning: #412402;
  --text-warning: #fac775;
  --fill-warning: #ef9f27;
  --bg-success: #173404;
  --text-success: #c0dd97;
  --fill-success: #639922;
  --fill-primary: #f1efe8;
  --on-primary: #1f1e1c;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--surface-0);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  padding: 16px;
  min-height: 100vh;
}

button, input, select { font: inherit; color: inherit; }
button {
  background: transparent;
  border: 0.5px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 0 12px;
  height: 36px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: background 0.15s ease, border-color 0.15s ease;
}
button:hover { background: var(--surface-1); }
button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible {
  outline: 2px solid var(--border-accent);
  outline-offset: 2px;
}

input[type=text] {
  height: 36px;
  border: 0.5px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 0 10px;
  background: var(--surface-2);
}

.top {
  max-width: 720px;
  margin: 0 auto 12px;
  text-align: center;
  padding: 0 40px;
}
.top h1 { font-size: 20px; font-weight: 600; margin: 0 0 4px; letter-spacing: -0.01em; }
.top p { margin: 0; color: var(--text-secondary); font-size: 13px; }

.ss-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin: 12px 0 16px;
}
.ss-nav button {
  font-size: 12px;
  height: 30px;
  padding: 0 10px;
}
.ss-nav button.on {
  background: var(--bg-accent);
  color: var(--text-accent);
  border-color: var(--border-accent);
}

.ss-phone {
  width: 420px;
  max-width: 100%;
  margin: 0 auto;
  border: 0.5px solid var(--border-strong);
  border-radius: 28px;
  padding: 14px 12px;
  background: var(--surface-1);
  box-shadow: 0 12px 36px rgba(0,0,0,0.06);
}

.ss-scr {
  background: var(--surface-2);
  border-radius: 18px;
  min-height: 640px;
  padding: 16px;
  font-size: 13px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ss-btn {
  width: 100%;
  height: 44px;
  font-size: 14px;
  font-weight: 500;
}
.ss-pri {
  background: var(--fill-primary);
  color: var(--on-primary);
  border: none;
}
.ss-pri:hover {
  background: var(--fill-primary);
  opacity: 0.9;
}

.ss-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 0.5px solid var(--border);
}
.ss-row:last-child {
  border-bottom: none;
}

.ss-pill {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: var(--radius);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 500;
}

.ss-bar {
  height: 4px;
  background: var(--surface-1);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 4px;
}

.ss-muted {
  color: var(--text-secondary);
  font-size: 12px;
}

.ss-dgrid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.ss-dcard {
  height: auto;
  text-align: left;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-radius: 12px;
}
.ss-dcard.on {
  border: 1.5px solid var(--border-accent);
  background: var(--bg-accent);
}

.theme-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  height: 32px;
  width: 32px;
  padding: 0;
  border-radius: 50%;
}

/* --- Camera Viewfinder & Shutter --- */
.viewfinder-box {
  width: 100%;
  height: 280px;
  border-radius: 14px;
  background: #000;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.viewfinder-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.viewfinder-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.viewfinder-top-bar {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 10;
}

.viewfinder-icon-btn {
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  padding: 0;
  backdrop-filter: blur(4px);
}
.viewfinder-icon-btn:hover {
  background: rgba(0, 0, 0, 0.75);
}

.shutter-container {
  position: absolute;
  bottom: 14px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10;
}

.shutter-btn {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 3.5px solid #ffffff;
  background: rgba(255, 255, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
  transition: transform 0.1s ease, background 0.1s ease;
}
.shutter-btn:active {
  transform: scale(0.92);
}
.shutter-inner {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #ffffff;
}

.flash-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #ffffff;
  opacity: 0;
  pointer-events: none;
  z-index: 20;
}
.flash-active {
  animation: camera-flash 0.3s ease-out;
}
@keyframes camera-flash {
  0% { opacity: 0.9; }
  100% { opacity: 0; }
}

@media (max-width: 440px) {
  body { padding: 8px; }
  .ss-phone { border: none; padding: 0; background: transparent; box-shadow: none; }
  .ss-scr { border-radius: 12px; min-height: calc(100vh - 120px); }
  .viewfinder-box { height: 260px; }
}