/* ==========================================================================
   Locmind design tokens + Liquid Glass primitives
   ========================================================================== */

:root {
    color-scheme: dark;
    --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter", "Segoe UI Variable", "Segoe UI", Roboto, "Helvetica Neue", system-ui, sans-serif;
    --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;

    /* System accents (dark appearance) */
    --blue: #0A84FF;
    --indigo: #5E5CE6;
    --purple: #BF5AF2;
    --pink: #FF375F;
    --red: #FF453A;
    --orange: #FF9F0A;
    --yellow: #FFD60A;
    --green: #30D158;
    --teal: #64D2FF;
    --accent: var(--blue);
    --accent-soft: rgba(10, 132, 255, .22);

    /* Surfaces */
    --bg-0: #04060c;
    --bg-1: #0b1020;
    --text: rgba(255, 255, 255, .96);
    --text-2: rgba(235, 235, 245, .66);
    --text-3: rgba(235, 235, 245, .40);
    --fill: rgba(120, 120, 140, .24);
    --fill-2: rgba(120, 120, 140, .16);
    --separator: rgba(255, 255, 255, .10);

    --glass-tint: rgba(26, 29, 46, .44);
    --glass-tint-strong: rgba(22, 25, 42, .78);
    --glass-sheen: rgba(255, 255, 255, .12);
    --glass-rim-a: rgba(255, 255, 255, .62);
    --glass-rim-b: rgba(255, 255, 255, .06);
    --glass-rim-c: rgba(255, 255, 255, .34);
    --glass-edge: rgba(255, 255, 255, .10);
    --glass-shadow: 0 18px 48px rgba(0, 0, 0, .38), 0 3px 10px rgba(0, 0, 0, .24);
    --glass-blur: blur(26px) saturate(185%) brightness(1.06);

    --r-xl: 32px;
    --r-lg: 26px;
    --r-md: 18px;
    --r-sm: 12px;

    --ease: cubic-bezier(.2, .8, .2, 1);
    --spring: cubic-bezier(.34, 1.56, .64, 1);
    --safe-t: env(safe-area-inset-top, 0px);
    --safe-b: env(safe-area-inset-bottom, 0px);
    --safe-l: env(safe-area-inset-left, 0px);
    --safe-r: env(safe-area-inset-right, 0px);
}

/* Light appearance. The script in theme-init.js resolves "auto" to light/dark. */
:root[data-theme="light"] {
    color-scheme: light;
    --blue: #007AFF; --indigo: #5856D6; --purple: #AF52DE; --pink: #FF2D55;
    --red: #FF3B30; --orange: #FF9500; --yellow: #FFCC00; --green: #28CD41; --teal: #55BEF0;
    --accent-soft: rgba(0, 122, 255, .16);
    --bg-0: #dfe5f1; --bg-1: #eef2fa;
    --text: rgba(0, 0, 0, .88);
    --text-2: rgba(60, 60, 67, .72);
    --text-3: rgba(60, 60, 67, .42);
    --fill: rgba(120, 120, 128, .20);
    --fill-2: rgba(120, 120, 128, .12);
    --separator: rgba(60, 60, 67, .16);
    --glass-tint: rgba(255, 255, 255, .50);
    --glass-tint-strong: rgba(255, 255, 255, .84);
    --glass-sheen: rgba(255, 255, 255, .55);
    --glass-rim-a: rgba(255, 255, 255, .95);
    --glass-rim-b: rgba(255, 255, 255, .30);
    --glass-rim-c: rgba(255, 255, 255, .80);
    --glass-edge: rgba(255, 255, 255, .55);
    --glass-shadow: 0 18px 44px rgba(40, 60, 110, .20), 0 3px 10px rgba(40, 60, 110, .12);
    --glass-blur: blur(28px) saturate(190%) brightness(1.04);
}

/* ---- Liquid Glass surface ------------------------------------------------ */

.glass {
    position: relative;
    isolation: isolate;
    background:
        radial-gradient(120% 140% at 0% 0%, var(--glass-sheen), transparent 55%),
        linear-gradient(180deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, 0) 60%),
        var(--glass-tint);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border-radius: var(--r-lg);
    box-shadow:
        var(--glass-shadow),
        inset 0 1px 0 rgba(255, 255, 255, .22),
        inset 0 -1px 0 rgba(255, 255, 255, .05),
        inset 0 0 0 .5px var(--glass-edge);
    color: var(--text);
}

/* Specular rim: a gradient border that catches the light on opposite corners. */
.glass::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(140deg, var(--glass-rim-a), var(--glass-rim-b) 32%, transparent 55%, var(--glass-rim-b) 72%, var(--glass-rim-c));
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
    pointer-events: none;
    z-index: 1;
}

.glass-strong { background-color: var(--glass-tint-strong); }

.pill { border-radius: 999px; }

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
    .glass { background: var(--glass-tint-strong); }
}

@media (prefers-reduced-transparency: reduce) {
    .glass { -webkit-backdrop-filter: none; backdrop-filter: none; background: var(--glass-tint-strong); }
}

/* ---- Controls ----------------------------------------------------------- */

.btn {
    appearance: none;
    border: 0;
    font: inherit;
    font-weight: 600;
    font-size: 15px;
    letter-spacing: -.01em;
    color: var(--text);
    background: var(--fill);
    padding: 10px 18px;
    border-radius: 999px;
    cursor: pointer;
    transition: transform .25s var(--spring), background .2s, filter .2s, box-shadow .2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    -webkit-tap-highlight-color: transparent;
}
.btn:hover { filter: brightness(1.12); }
.btn:active { transform: scale(.96); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn:disabled { opacity: .5; pointer-events: none; }
.btn-primary {
    color: #fff;
    background: var(--accent);
    background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 88%, #fff), var(--accent));
    box-shadow: 0 8px 22px color-mix(in srgb, var(--accent) 45%, transparent), inset 0 1px 0 rgba(255, 255, 255, .35);
}
.btn-danger { color: #fff; background: var(--red); background: linear-gradient(180deg, color-mix(in srgb, var(--red) 88%, #fff), var(--red)); }
.btn-lg { padding: 15px 22px; font-size: 17px; width: 100%; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn svg { width: 1.15em; height: 1.15em; }

.input {
    appearance: none;
    width: 100%;
    font: inherit;
    font-size: 16px;
    color: var(--text);
    background: var(--fill-2);
    border: 1px solid var(--separator);
    border-radius: var(--r-sm);
    padding: 12px 14px;
    outline: none;
    transition: border-color .2s, background .2s, box-shadow .2s;
}
.input::placeholder { color: var(--text-3); }
.input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); background: var(--fill); }

/* iOS style segmented control */
.segmented {
    display: inline-flex;
    padding: 3px;
    gap: 2px;
    border-radius: 999px;
    background: var(--fill-2);
    border: 1px solid var(--separator);
}
.segmented button {
    appearance: none; border: 0; font: inherit; font-size: 13px; font-weight: 600;
    color: var(--text-2); background: transparent; padding: 6px 14px; border-radius: 999px; cursor: pointer;
    transition: background .2s, color .2s, box-shadow .2s;
}
.segmented button[aria-pressed="true"], .segmented button.is-active {
    color: var(--text);
    background: var(--glass-tint-strong);
    box-shadow: 0 2px 8px rgba(0, 0, 0, .22), inset 0 1px 0 rgba(255, 255, 255, .25);
}

/* iOS switch */
.switch { position: relative; width: 51px; height: 31px; flex: none; }
.switch input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; z-index: 2; }
.switch i {
    position: absolute; inset: 0; border-radius: 999px; background: var(--fill); transition: background .25s;
}
.switch i::after {
    content: ""; position: absolute; top: 2px; left: 2px; width: 27px; height: 27px; border-radius: 50%;
    background: #fff; box-shadow: 0 3px 8px rgba(0, 0, 0, .3); transition: transform .3s var(--spring);
}
.switch input:checked + i { background: var(--green); }
.switch input:checked + i::after { transform: translateX(20px); }
.switch input:focus-visible + i { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Slim range slider */
input[type="range"].range {
    -webkit-appearance: none; appearance: none; width: 100%; height: 22px; background: transparent; cursor: pointer; margin: 0;
}
input[type="range"].range::-webkit-slider-runnable-track {
    height: 4px; border-radius: 2px;
    background: linear-gradient(90deg, var(--accent) var(--fill-pct, 50%), var(--fill) var(--fill-pct, 50%));
}
input[type="range"].range::-moz-range-track { height: 4px; border-radius: 2px; background: var(--fill); }
input[type="range"].range::-moz-range-progress { height: 4px; border-radius: 2px; background: var(--accent); }
input[type="range"].range::-webkit-slider-thumb {
    -webkit-appearance: none; width: 18px; height: 18px; margin-top: -7px; border-radius: 50%;
    background: #fff; box-shadow: 0 2px 8px rgba(0, 0, 0, .4), inset 0 0 0 .5px rgba(0, 0, 0, .1);
}
input[type="range"].range::-moz-range-thumb { width: 18px; height: 18px; border: 0; border-radius: 50%; background: #fff; box-shadow: 0 2px 8px rgba(0, 0, 0, .4); }

/* Scrollbars */
* { scrollbar-width: thin; scrollbar-color: var(--fill) transparent; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: var(--fill); border-radius: 8px; border: 2px solid transparent; background-clip: content-box; }

.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
[hidden] { display: none !important; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}
:root.reduce-motion *, :root.reduce-motion *::before, :root.reduce-motion *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }