:root{
    --bg:#0e121b;
    --panel:#161b26;
    --field:#11151f;
    --border:#2a3142;
    --ink:#f3f5f9;
    --muted:#8d96a8;
    --purple:#8b7cf6;
    --purple-soft:#3a3356;
    --blue:#3b6fe0;
    --blue-dark:#2f59bd;
    --gold:#e7c35a;
    --green-bg:#0f2a1c;
    --green-border:#1f5c3a;
    --green-ink:#5fd392;
    --track:#242b3a;
}

body[data-theme="light"]{
    --bg:#f4f5f8;
    --panel:#ffffff;
    --field:#f8f9fb;
    --border:#e1e4ea;
    --ink:#171a21;
    --muted:#6b7280;
    --purple:#7c6af0;
    --purple-soft:#eee9ff;
    --blue:#3b6fe0;
    --blue-dark:#2f59bd;
    --gold:#e3b53d;
    --green-bg:#eafbf1;
    --green-border:#bfe8cf;
    --green-ink:#1d8a4e;
    --track:#e7e9ee;
}

*{box-sizing:border-box;}

body{
    margin:0;
    font-family:'Inter',sans-serif;
    background:var(--bg);
    color:var(--ink);
    transition:background .2s ease,color .2s ease;
}

a{color:inherit;text-decoration:none;}

.page{min-height:100vh;display:flex;flex-direction:column;}

/* ===== top bar ===== */
.topbar{
    display:flex;align-items:center;justify-content:space-between;
    padding:16px 28px;border-bottom:1px solid var(--border);
}

.brand{display:flex;align-items:center;gap:9px;}

.brand-mark{
    width:32px;height:32px;border-radius:9px;
    background:linear-gradient(135deg,var(--purple),#4a3fb8);
    display:flex;align-items:center;justify-content:center;flex-shrink:0;
}

.brand-mark svg{width:17px;height:17px;stroke:#fff;fill:none;stroke-width:2.2;}

.brand-mark .brand-logo-img{width:100%;height:100%;object-fit:cover;border-radius:inherit;}

.brand-name{font-size:1.1rem;font-weight:800;letter-spacing:-.01em;}

.top-actions{display:flex;align-items:center;gap:10px;}

.theme-toggle{
    display:flex;align-items:center;gap:8px;padding:7px 14px 7px 7px;
    border:1px solid var(--border);border-radius:999px;background:var(--panel);
    font-size:.85rem;font-weight:600;color:var(--ink);cursor:pointer;
}

.theme-toggle .dot{
    width:20px;height:20px;border-radius:50%;background:var(--purple);
    display:flex;align-items:center;justify-content:center;
}

.theme-toggle .dot svg{width:11px;height:11px;stroke:#fff;fill:none;stroke-width:2.4;}

body[data-theme="light"] .theme-toggle{
    background:#eaf1fb;border-color:#dbe6f7;color:#171a21;font-weight:700;
}

body[data-theme="light"] .theme-toggle .dot{
    background:var(--gold);
}

body[data-theme="light"] .theme-toggle .dot svg{display:none;}

.icon-btn{
    width:36px;height:36px;border-radius:50%;border:1px solid var(--border);
    background:var(--panel);display:flex;align-items:center;justify-content:center;
    cursor:pointer;
}

.icon-btn svg{width:17px;height:17px;stroke:var(--muted);fill:none;stroke-width:1.8;}

/* ===== main ===== */
.main{flex:1;display:flex;align-items:center;justify-content:center;padding:40px 20px 60px;}

.card{
    width:100%;max-width:440px;background:var(--panel);
    border:1px solid var(--border);border-top:3px solid var(--gold);
    border-radius:18px;padding:40px 36px 34px;
    box-shadow:0 30px 60px -20px rgba(0,0,0,.5);
}

@media(max-width:480px){.card{padding:30px 22px 26px;}}

/* progress steps */
.steps{display:flex;gap:8px;margin-bottom:28px;}

.steps span{flex:1;height:4px;border-radius:3px;background:var(--track);}

.steps span.active{background:var(--purple);}

h1{font-size:1.5rem;font-weight:800;margin:0 0 10px;line-height:1.25;}

.subtitle{color:var(--muted);font-size:.92rem;line-height:1.5;margin:0 0 28px;}

.field{margin-bottom:20px;}

.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:8px;}

.field input{
    width:100%;padding:13px 14px;border:1.5px solid var(--border);border-radius:10px;
    background:var(--field);color:var(--ink);font-size:.92rem;font-family:inherit;
}

.field input::placeholder{color:#5a6276;}

.field input:focus{outline:none;border-color:var(--purple);box-shadow:0 0 0 3px rgba(139,124,246,.18);}

.forgot-row{text-align:right;margin:-8px 0 22px;}

.forgot-row a{font-size:.85rem;font-weight:600;color:var(--purple);}

.forgot-row a:hover{text-decoration:underline;}

.btn-signin{
    width:100%;padding:15px;border:1.5px solid var(--gold);border-radius:10px;
    background:var(--blue);color:#fff;font-size:.96rem;font-weight:700;
    cursor:pointer;transition:background .18s ease;
}

.btn-signin:hover{background:var(--blue-dark);}

.note{font-size:.84rem;color:var(--muted);line-height:1.55;margin:20px 0 0;text-align:center;}

.note a{font-weight:700;color:var(--purple);}

.note a:hover{text-decoration:underline;}

.banner{
    margin-top:22px;padding:13px 16px;border-radius:10px;
    background:var(--green-bg);border:1px solid var(--green-border);
    color:var(--green-ink);font-size:.84rem;font-weight:600;line-height:1.5;
}

.banner a{text-decoration:underline;}

footer{border-top:1px solid var(--border);padding:16px 28px;text-align:center;color:var(--muted);font-size:.78rem;}

/* ===== SMS step ===== */
.step{display:none;}

.step.active{display:block;}

.field .otp-single{
    width:100%;padding:15px 16px;border:1.5px solid var(--purple);border-radius:10px;
    background:var(--field);color:var(--ink);font-size:1.15rem;font-weight:700;font-family:inherit;
    letter-spacing:.35em;box-shadow:0 0 0 3px rgba(139,124,246,.16);
}

.otp-single::placeholder{color:#5a6276;letter-spacing:.3em;}

.field .otp-single:focus{outline:none;border-color:var(--purple);box-shadow:0 0 0 3px rgba(139,124,246,.22);}

.expiry-note{font-size:.84rem;color:var(--muted);margin:-10px 0 22px;}

.expiry-note b{color:var(--ink);font-variant-numeric:tabular-nums;}

.timer-row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:18px 0 0;font-size:.84rem;color:var(--muted);flex-wrap:wrap;}

.timer-row .resend{font-weight:700;color:var(--muted);cursor:pointer;}

.timer-row .resend:not(.disabled){color:var(--purple);}

.timer-row .resend.disabled{cursor:default;pointer-events:none;}

.timer-row #resendCount{font-variant-numeric:tabular-nums;}

.no-number-link{font-weight:600;color:var(--purple);font-size:.84rem;}

.no-number-link:hover{text-decoration:underline;}

/* ===== success step ===== */
.success-wrap{text-align:center;padding:10px 0 4px;}

.success-icon{
    width:62px;height:62px;border-radius:50%;margin:0 auto 20px;
    background:var(--green-bg);border:1px solid var(--green-border);
    display:flex;align-items:center;justify-content:center;
}

.success-icon svg{width:28px;height:28px;stroke:var(--green-ink);fill:none;stroke-width:2.6;}

.success-wrap h1{margin-bottom:8px;}

.success-wrap .subtitle{margin-bottom:28px;}

.btn-dashboard{
    display:block;width:100%;padding:15px;border:1.5px solid var(--gold);border-radius:10px;
    background:var(--blue);color:#fff;font-size:.96rem;font-weight:700;text-align:center;
    cursor:pointer;transition:background .18s ease;
}

.btn-dashboard:hover{background:var(--blue-dark);}