/* =========================================================================
   NEELKUND — সব পাতার সাধারণ চেহারা
   ফোনের জন্য আগে, তারপর বড় পর্দা।
   ========================================================================= */

:root {
    --navy:       #0F2942;
    --navy-deep:  #0A1B2E;
    --navy-soft:  #1B3B5C;

    --red:        #E12A1F;
    --red-soft:   #FDECEA;
    --green:      #16A34A;
    --green-soft: #E7F6EC;
    --amber:      #D97706;
    --amber-soft: #FEF3E2;
    --blue:       #2563EB;
    --blue-soft:  #EAF1FE;

    --ink:        #0F1B2A;
    --muted:      #64748B;
    --line:       #E4E9EF;
    --paper:      #F5F7FA;
    --card:       #FFFFFF;

    --r:          14px;
    --shadow:     0 1px 3px rgba(15,41,66,.06), 0 8px 24px rgba(15,41,66,.06);
    --tap:        48px;   /* আঙুলে টেপার সর্বনিম্ন মাপ */
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: 'Hind Siliguri', 'Manrope', -apple-system, system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

/* ফোনে লেখা নির্বাচন বন্ধ — অ্যাপের মতো লাগবে */
body { -webkit-user-select: none; user-select: none; }
input, textarea, .sel { -webkit-user-select: text; user-select: text; }

h1, h2, h3 { margin: 0; font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: 20px; }
h2 { font-size: 17px; }
h3 { font-size: 15px; }

a { color: var(--blue); text-decoration: none; }


/* ---------------- বোতাম ---------------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;

    min-height: var(--tap);
    padding: 0 20px;

    border: 0;
    border-radius: 10px;
    background: var(--navy);
    color: #fff;

    font-family: inherit;
    font-size: 15px;
    font-weight: 600;

    cursor: pointer;
    transition: transform .06s, opacity .15s;
}
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn.block { width: 100%; }
.btn.sm { min-height: 38px; padding: 0 14px; font-size: 13.5px; border-radius: 8px; }

.btn.ghost {
    background: #fff;
    color: var(--navy);
    border: 1.5px solid var(--line);
}
.btn.danger  { background: var(--red); }
.btn.success { background: var(--green); }


/* ---------------- ঘর (input) ---------------- */

.fld { margin-bottom: 16px; }

.fld label {
    display: block;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 7px;
}

.fld input,
.fld select,
.fld textarea {
    width: 100%;
    min-height: var(--tap);
    padding: 12px 14px;

    border: 1.5px solid var(--line);
    border-radius: 10px;
    background: #fff;

    font-family: inherit;
    font-size: 16px;        /* ১৬px না হলে iPhone-এ পর্দা জুম করে */
    color: var(--ink);
}

.fld input:focus,
.fld select:focus,
.fld textarea:focus {
    outline: 0;
    border-color: var(--navy);
    box-shadow: 0 0 0 3px rgba(15,41,66,.08);
}

.fld .hint {
    font-size: 12.5px;
    color: var(--muted);
    margin-top: 6px;
}


/* ---------------- বার্তা ---------------- */

.msg {
    display: none;
    padding: 12px 14px;
    border-radius: 10px;
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 16px;
}
.msg.ok { display: block; background: var(--green-soft); color: var(--green); }
.msg.er { display: block; background: var(--red-soft);   color: var(--red); }
.msg.in { display: block; background: var(--blue-soft);  color: var(--blue); }


/* ---------------- কার্ড ---------------- */

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--r);
    padding: 18px;
    margin-bottom: 14px;
}


/* ---------------- ব্যাজ ---------------- */

.b {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}
.b.g { background: var(--green-soft); color: var(--green); }
.b.a { background: var(--amber-soft); color: var(--amber); }
.b.r { background: var(--red-soft);   color: var(--red); }
.b.b { background: var(--blue-soft);  color: var(--blue); }
.b.n { background: #EEF2F6;           color: var(--muted); }


/* ---------------- টোস্ট ---------------- */

#toast {
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: 20px;
    z-index: 300;

    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.tst {
    padding: 13px 16px;
    border-radius: 10px;
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 10px 30px rgba(0,0,0,.22);
    animation: rise .22s ease-out;
}
.tst.ok { background: var(--green); }
.tst.er { background: var(--red); }
.tst.in { background: var(--navy); }

@keyframes rise {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}


/* ---------------- লোড হচ্ছে ---------------- */

.loading, .empty {
    text-align: center;
    padding: 36px 16px;
    color: var(--muted);
    font-size: 14.5px;
}

.spin {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2.5px solid rgba(255,255,255,.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }


/* ---------------- বড় পর্দা ---------------- */

@media (min-width: 768px) {
    h1 { font-size: 24px; }
    .btn { min-height: 44px; }
}