:root{
    --accent:#8b5cf6;      /* purple-500 */
    --accent-2:#06b6d4;    /* cyan-500 */
    --ink:#eef1f7;         /* base text */
    --ink-dim:#a7adc5;     /* dim text */
    --panel: rgba(18, 20, 38, 0.72);
    --stroke: rgba(255,255,255,0.10);
    --hover: rgba(255,255,255,0.06);
    --field:#0f1226;       /* input bg */
    --field-stroke:#313750;/* input border */
}

/* Background */
body{
    min-height:100vh; color:var(--ink);
    background:
    radial-gradient(1200px 800px at 10% -10%, rgba(139,92,246,.25), transparent 60%),
    radial-gradient(900px 600px at 110% 10%, rgba(6,182,212,.22), transparent 55%),
    linear-gradient(160deg, #0b0c17 0%, #0e1020 60%, #0a0b16 100%);
    background-attachment: fixed;
}

/* Glass card */
.glass{
    backdrop-filter: blur(18px);
    background: var(--panel);
    border: 1px solid var(--stroke);
    box-shadow: 0 20px 50px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.02);
    border-radius: 1rem;
}

/* Inputs – dark, readable */
.input,
input[type="text"], input[type="password"]{
    background-color: var(--field) !important;
    border: 1px solid var(--field-stroke) !important;
    color: var(--ink) !important;
    border-radius: .6rem !important;
    padding: .7rem .9rem !important;
    line-height: 1.35rem !important;
    min-height: 2.75rem;
    font-size: .98rem;
    outline: none;
    appearance: none;
    background-clip: padding-box;
    caret-color: var(--accent);
    width: 100%;
}
.input::placeholder,
input::placeholder{ color: var(--ink-dim) !important; opacity:.9 !important; }
.input:focus,
input:focus{
    border-color: var(--accent) !important;
    box-shadow: 0 0 0 3px rgba(139,92,246,.25) !important;
}

/* Buttons */
.btn{ display:inline-flex; align-items:center; justify-content:center; gap:.5rem;
        padding:.7rem 1rem; border-radius:.7rem; border:1px solid var(--stroke);
        background:rgba(255,255,255,.03); color:var(--ink); width:100%; font-weight:600; }
.btn:hover{ background:var(--hover); }
.btn-primary{ border-color: transparent; background:linear-gradient(90deg,var(--accent),var(--accent-2)); color:#fff; }

/* Header mark */
.mark{
    height: 44px; width: 44px; border-radius:.8rem;
    background: conic-gradient(from 140deg at 50% 50%, var(--accent), var(--accent-2));
    box-shadow: 0 0 40px rgba(139,92,246,.35);
}

/* Error box — NO display:none here so Tailwind `hidden` works */
.error-box{
    margin-top:.6rem;
    padding:.6rem .75rem;
    border-radius:.6rem;
    background:rgba(239,68,68,.12);
    border:1px solid rgba(239,68,68,.35);
    color:#fecaca;
    font-size:.9rem;
}