/* ═══════════════════════════════════════════════════════════════════════════
   flickly — design system
   Cool slate neutrals + a single teal signal-accent. Light + dark (auto).
   ═══════════════════════════════════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f5f7fa;
  --bg-tint: radial-gradient(1200px 600px at 100% -10%, rgba(18,165,148,.10), transparent 60%),
             radial-gradient(900px 500px at -10% 110%, rgba(18,165,148,.07), transparent 55%);
  --surface: #ffffff;
  --surface-2: #f4f7f9;
  --border: #e5eaf0;
  --border-strong: #d3dbe5;
  --text: #101826;
  --text-2: #48566a;
  --muted: #808c9c;
  --accent: #0f9d8f;
  --accent-hover: #0c8578;
  --accent-ink: #0b7568;
  --accent-weak: rgba(15,157,143,.12);
  --good: #15a34a; --good-weak: rgba(21,163,74,.13);
  --warn: #c07807; --warn-weak: rgba(217,119,6,.14);
  --danger: #dc2626; --danger-weak: rgba(220,38,38,.11);
  --radius: 14px; --radius-sm: 9px; --radius-xs: 7px;
  --shadow-sm: 0 1px 2px rgba(16,24,38,.06);
  --shadow: 0 6px 22px -8px rgba(16,24,38,.14), 0 1px 3px rgba(16,24,38,.05);
  --shadow-lg: 0 28px 60px -18px rgba(16,24,38,.30);
  --ring: 0 0 0 3px var(--accent-weak);
  --font: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0e15;
    --bg-tint: radial-gradient(1200px 600px at 100% -10%, rgba(45,212,191,.10), transparent 60%),
               radial-gradient(900px 500px at -10% 110%, rgba(45,212,191,.06), transparent 55%);
    --surface: #121a25;
    --surface-2: #18222f;
    --border: #223143;
    --border-strong: #2d4056;
    --text: #e9eef4;
    --text-2: #a6b3c4;
    --muted: #6d7c8e;
    --accent: #2dd4bf;
    --accent-hover: #5eead4;
    --accent-ink: #7ff0e2;
    --accent-weak: rgba(45,212,191,.15);
    --good: #34d399; --good-weak: rgba(52,211,153,.15);
    --warn: #fbbf24; --warn-weak: rgba(251,191,36,.15);
    --danger: #f87171; --danger-weak: rgba(248,113,113,.15);
    --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
    --shadow: 0 8px 26px -10px rgba(0,0,0,.6), 0 1px 3px rgba(0,0,0,.4);
    --shadow-lg: 0 30px 70px -20px rgba(0,0,0,.7);
    color-scheme: dark;
  }
}

body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  background-image: var(--bg-tint);
  background-attachment: fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-ink); }
::selection { background: var(--accent-weak); }

/* ── Brand mark ─────────────────────────────────────────────────────────────*/
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px; flex: none;
  display: grid; place-items: center;
  background: linear-gradient(150deg, var(--accent), var(--accent-hover));
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255,255,255,.25);
  color: #fff;
}
.brand-mark svg { width: 16px; height: 16px; display: block; }
.brand-name { font-size: 16px; font-weight: 700; letter-spacing: -.02em; }
.brand-name b { color: var(--accent-ink); font-weight: 700; }

/* ── Nav ────────────────────────────────────────────────────────────────────*/
nav {
  background: var(--surface); /* fallback */
  background: color-mix(in srgb, var(--surface) 78%, transparent);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 22px; height: 58px; position: sticky; top: 0; z-index: 100;
}
.nav-actions { display: flex; align-items: center; gap: 10px; }
.nav-user { color: var(--muted); font-size: 13px; font-variant-numeric: tabular-nums; }

/* ── Buttons ────────────────────────────────────────────────────────────────*/
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px 15px; border-radius: var(--radius-sm);
  font-family: inherit; font-size: 13px; font-weight: 600; letter-spacing: -.01em;
  cursor: pointer; border: 1px solid transparent; text-decoration: none; white-space: nowrap;
  transition: background .15s, border-color .15s, transform .05s, box-shadow .15s, color .15s;
}
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: var(--ring); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255,255,255,.18); }
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }
.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--border-strong); }
.btn-secondary:hover:not(:disabled) { background: var(--surface-2); border-color: var(--muted); }
.btn-danger { background: transparent; color: var(--danger); border-color: color-mix(in srgb, var(--danger) 45%, transparent); }
.btn-danger:hover:not(:disabled) { background: var(--danger); color: #fff; border-color: transparent; }
.btn-ghost { background: transparent; color: var(--text-2); }
.btn-ghost:hover:not(:disabled) { color: var(--text); background: var(--surface-2); }
.btn-sm { padding: 6px 11px; font-size: 12px; }
.btn-block { width: 100%; }

/* ── Cards ──────────────────────────────────────────────────────────────────*/
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-header {
  padding: 16px 20px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.card-title { font-size: 14px; font-weight: 700; letter-spacing: -.01em; display: flex; align-items: center; gap: 9px; }
.card-title .count { font: 600 11px/1 var(--mono); color: var(--muted); background: var(--surface-2);
  border: 1px solid var(--border); padding: 3px 7px; border-radius: 20px; }
.card-body { padding: 20px; }
.section-eyebrow { font: 600 11px/1 var(--mono); letter-spacing: .13em; text-transform: uppercase; color: var(--muted); }

/* ── Forms ──────────────────────────────────────────────────────────────────*/
.form-group { display: flex; flex-direction: column; gap: 7px; }
.form-label { font-size: 12.5px; font-weight: 600; color: var(--text-2); }
input[type="text"], input[type="password"], input[type="email"], input[type="file"] {
  width: 100%; padding: 11px 13px; border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  font-family: inherit; font-size: 14px; outline: none; background: var(--surface); color: var(--text);
  transition: border-color .15s, box-shadow .15s;
}
input::placeholder { color: var(--muted); }
input:focus { border-color: var(--accent); box-shadow: var(--ring); }
input[type="file"] { padding: 9px 12px; cursor: pointer; color: var(--text-2); }
input[type="file"]::file-selector-button {
  font: inherit; font-size: 12px; font-weight: 600; margin-right: 12px; padding: 7px 12px;
  border: 1px solid var(--border-strong); border-radius: var(--radius-xs); background: var(--surface-2);
  color: var(--text); cursor: pointer;
}
.select {
  font: inherit; font-size: 13px; font-weight: 600; padding: 8px 10px;
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--text); cursor: pointer;
}
.select:focus { outline: none; border-color: var(--accent); box-shadow: var(--ring); }
.ttl-field { display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
  font: 600 12.5px/1 var(--font); color: var(--text-2); }

/* ── Status pill ────────────────────────────────────────────────────────────*/
.badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 20px;
  font: 600 12px/1 var(--font); border: 1px solid transparent;
}
.badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; }
.badge-ready { background: var(--good-weak); color: var(--good); }
.badge-ready::before { background: var(--good); box-shadow: 0 0 0 3px color-mix(in srgb, var(--good) 22%, transparent); }
.badge-waiting { background: var(--warn-weak); color: var(--warn); }
.badge-waiting::before { background: var(--warn); animation: pulse 1.4s infinite; }
.badge-offline { background: var(--surface-2); color: var(--muted); border-color: var(--border); }
.badge-offline::before { background: var(--muted); }

@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .25; } }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }

/* ── Session cards (dashboard) ──────────────────────────────────────────────*/
.session-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; padding: 20px; }
.session-tile {
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-2);
  padding: 16px; display: flex; flex-direction: column; gap: 14px; transition: border-color .15s, box-shadow .15s, transform .1s;
}
.session-tile:hover { border-color: var(--border-strong); box-shadow: var(--shadow); transform: translateY(-2px); }
.session-tile .screen {
  aspect-ratio: 16 / 10; border-radius: var(--radius-sm); background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 16%, var(--surface)), var(--surface));
  border: 1px solid var(--border); display: grid; place-items: center; color: var(--accent-ink); position: relative; overflow: hidden;
}
.session-tile .screen svg { width: 30px; height: 30px; opacity: .8; }
.session-tile .meta { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.session-tile .sid { font: 600 13px/1 var(--mono); color: var(--text); letter-spacing: .02em; }
.session-tile .age { font: 500 11px/1 var(--mono); color: var(--muted); }
.session-tile .row { display: flex; gap: 8px; }
.session-tile .row .btn { flex: 1; }

/* ── APK list ───────────────────────────────────────────────────────────────*/
.apk-list { display: flex; flex-direction: column; }
.apk-row { display: flex; align-items: center; padding: 13px 20px; border-bottom: 1px solid var(--border); gap: 13px; }
.apk-row:last-child { border-bottom: none; }
.apk-icon { width: 38px; height: 38px; border-radius: var(--radius-sm); background: var(--accent-weak);
  color: var(--accent-ink); display: grid; place-items: center; flex: none; }
.apk-icon svg { width: 19px; height: 19px; }
.apk-info { flex: 1; min-width: 0; }
.apk-name { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.apk-meta { font: 500 12px/1 var(--mono); color: var(--muted); margin-top: 4px; }
.apk-actions { display: flex; gap: 8px; flex-shrink: 0; }

.empty-state { padding: 44px 20px; text-align: center; color: var(--muted); font-size: 13.5px; }
.empty-state svg { width: 30px; height: 30px; opacity: .5; margin-bottom: 10px; }

/* ── Upload ─────────────────────────────────────────────────────────────────*/
.upload-area { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.upload-area .form-group { flex: 1; min-width: 220px; }
.progress-wrap { display: none; height: 5px; background: var(--border); border-radius: 3px; overflow: hidden; margin-top: 10px; }
.progress-bar { height: 100%; background: var(--accent); width: 0; transition: width .2s; }
.progress-wrap.show { display: block; }

/* ── Toast ──────────────────────────────────────────────────────────────────*/
#toast {
  position: fixed; bottom: 24px; right: 24px; padding: 12px 16px 12px 14px; border-radius: var(--radius-sm);
  font-size: 13px; font-weight: 600; color: #fff; box-shadow: var(--shadow-lg);
  opacity: 0; transform: translateY(10px); transition: opacity .2s, transform .2s; pointer-events: none;
  z-index: 999; max-width: 340px; display: flex; align-items: center; gap: 9px; border-left: 3px solid transparent;
}
#toast.show { opacity: 1; transform: translateY(0); }
#toast.success { background: #10161f; border-left-color: var(--good); }
#toast.error { background: #10161f; border-left-color: var(--danger); }

/* ── Login ──────────────────────────────────────────────────────────────────*/
.login-wrap { width: 100%; max-width: 380px; padding: 20px; }
.login-logo { text-align: center; margin-bottom: 26px; display: flex; flex-direction: column; align-items: center; gap: 14px; }
.login-logo .brand-mark { width: 46px; height: 46px; border-radius: 13px; }
.login-logo .brand-mark svg { width: 24px; height: 24px; }
.login-logo h1 { font-size: 25px; font-weight: 750; letter-spacing: -.03em; }
.login-logo p { color: var(--muted); font-size: 13.5px; }
.login-card { padding: 30px; box-shadow: var(--shadow-lg); }
.login-form { display: flex; flex-direction: column; gap: 16px; }
.error-msg {
  color: var(--danger); font-size: 13px; text-align: center; display: none;
  background: var(--danger-weak); border-radius: var(--radius-xs); padding: 9px;
}
.error-msg.show { display: block; }
.login-foot { text-align: center; margin-top: 18px; color: var(--muted); font: 500 11.5px/1.5 var(--mono); }

/* ── Confirm modal (replaces window.confirm) ────────────────────────────────*/
.modal-backdrop {
  position: fixed; inset: 0; z-index: 1000; display: grid; place-items: center; padding: 24px;
  background: rgba(8,12,18,.55); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  opacity: 0; transition: opacity .16s ease;
}
.modal-backdrop.open { opacity: 1; }
.modal-backdrop.closing { opacity: 0; }
.modal-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  box-shadow: var(--shadow-lg); width: 100%; max-width: 380px; padding: 24px;
  display: flex; flex-direction: column; gap: 10px;
  transform: translateY(10px) scale(.97); transition: transform .16s ease;
}
.modal-backdrop.open .modal-card { transform: none; }
.modal-title { font-size: 17px; font-weight: 700; letter-spacing: -.01em; color: var(--ink); }
.modal-msg { font-size: 14px; color: var(--ink-soft); }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 12px; }
.btn-danger-solid { background: var(--danger); color: #fff; }
.btn-danger-solid:hover:not(:disabled) { filter: brightness(1.08); }
@media (prefers-reduced-motion: reduce) { .modal-backdrop, .modal-card { transition: none; } }