/* ============================================================
   LendNodes — Black + Blue Minimal Theme
   Mobile-first responsive design
   ============================================================ */

:root {
    --bg:            #000000;
    --bg-card:       #0d0d0d;
    --bg-card-hover: #141414;
    --bg-input:      #0a0a0a;
    --bg-topbar:     #0a0a0a;

    --blue:          #1d4ed8;
    --blue-l:        #2563eb;
    --blue-glow:     rgba(37,99,235,.18);

    --text:          #e5e7eb;
    --text2:         #8b8fa3;
    --text3:         #555;

    --green:         #22c55e;
    --green-bg:      rgba(34,197,94,.12);
    --yellow:        #eab308;
    --yellow-bg:     rgba(234,179,8,.12);
    --red:           #ef4444;
    --red-bg:        rgba(239,68,68,.12);

    --border:        #1a1a1a;
    --r:             12px;
    --r-sm:          8px;
    --tr:            .2s ease;

    --topbar:        54px;
    --bnav:          60px;
    --sidebar-w:     240px;

    --safe-b: env(safe-area-inset-bottom, 0px);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}
body{
    font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
    background:var(--bg);color:var(--text);line-height:1.5;
    min-height:100dvh;overflow-x:hidden;
    padding-top:var(--topbar);
    padding-bottom:calc(var(--bnav) + var(--safe-b));
}
a{color:var(--blue-l);text-decoration:none}
a:hover{color:#60a5fa}

::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#222;border-radius:2px}

/* ── TOPBAR ────────────────────────────────────── */
.topbar{
    position:fixed;top:0;left:0;right:0;height:var(--topbar);
    padding:0 16px;background:var(--bg-topbar);
    border-bottom:1px solid var(--border);
    display:flex;align-items:center;justify-content:space-between;
    z-index:100;
}
.topbar__logo{display:flex;align-items:center;gap:8px;color:var(--text);font-weight:700;font-size:1rem}
.topbar__logo-img{height:28px}
.topbar__brand{letter-spacing:-.02em}

.topbar__menu-btn{
    display:flex;flex-direction:column;gap:4px;
    background:none;border:none;cursor:pointer;padding:8px;
}
.topbar__menu-btn span{display:block;width:20px;height:2px;background:var(--text);border-radius:1px;transition:var(--tr)}

/* ── SIDEBAR ───────────────────────────────────── */
.sidebar__overlay{
    position:fixed;inset:0;background:rgba(0,0,0,.7);
    opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s;z-index:199;
}
.sidebar__panel{
    position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
    background:#0a0a0a;border-right:1px solid var(--border);
    transform:translateX(-100%);transition:transform .25s ease;
    z-index:200;display:flex;flex-direction:column;
}
.sidebar.open .sidebar__overlay{opacity:1;visibility:visible}
.sidebar.open .sidebar__panel{transform:translateX(0)}

.sidebar__header{
    display:flex;align-items:center;gap:8px;padding:16px;
    font-weight:700;font-size:1rem;border-bottom:1px solid var(--border);color:var(--text);
}
.sidebar__logo{height:26px}

.sidebar__nav{list-style:none;flex:1;padding:8px 6px;overflow-y:auto}
.sidebar__nav li{margin-bottom:1px}
.sidebar__link{
    display:flex;align-items:center;gap:10px;
    padding:10px 14px;border-radius:var(--r-sm);
    color:var(--text2);font-size:.9rem;font-weight:500;
    transition:background var(--tr),color var(--tr);
}
.sidebar__link svg{width:18px;height:18px;flex-shrink:0}
.sidebar__link:hover,.sidebar__link.active{background:var(--blue-glow);color:var(--blue-l)}
.sidebar__link--danger{color:var(--red)}
.sidebar__link--danger:hover{background:var(--red-bg);color:var(--red)}
.sidebar__footer{padding:8px 6px;border-top:1px solid var(--border)}

/* ── BOTTOM NAV ────────────────────────────────── */
.bottom-nav{
    position:fixed;bottom:0;left:0;right:0;
    height:calc(var(--bnav) + var(--safe-b));
    padding-bottom:var(--safe-b);
    background:#0a0a0a;border-top:1px solid var(--border);
    display:flex;align-items:center;justify-content:space-around;
    z-index:100;
}
.bottom-nav__item{
    display:flex;flex-direction:column;align-items:center;gap:1px;
    color:var(--text3);font-size:.65rem;font-weight:500;
    padding:4px 10px;transition:color var(--tr);
}
.bottom-nav__item svg{width:20px;height:20px}
.bottom-nav__item.active,.bottom-nav__item:hover{color:var(--blue-l)}

/* ── CONTENT ───────────────────────────────────── */
.content{max-width:700px;margin:0 auto;padding:16px 14px}

/* ── Page Head ─────────────────────────────────── */
.page-head{margin-bottom:20px}
.page-head--back{display:flex;align-items:center;gap:10px}
.page-title{font-size:1.35rem;font-weight:700;letter-spacing:-.02em}
.page-sub{color:var(--text2);font-size:.85rem;margin-top:1px}
.back-btn{
    display:flex;align-items:center;justify-content:center;
    width:34px;height:34px;border-radius:50%;
    background:var(--bg-card);color:var(--text);flex-shrink:0;
}
.back-btn:hover{background:var(--bg-card-hover)}
.back-btn svg{width:18px;height:18px}
.page-head--back .badge{margin-left:auto}

/* ── Section ───────────────────────────────────── */
.sec-head{display:flex;align-items:center;justify-content:space-between;margin:24px 0 10px}
.sec-title{font-size:1rem;font-weight:600}
.sec-link{font-size:.8rem;color:var(--blue-l)}

/* ── Stats Row ─────────────────────────────────── */
.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.stat-card{
    background:var(--bg-card);border:1px solid var(--border);
    border-radius:var(--r);padding:14px;text-align:center;
}
.stat-card--accent{border-color:var(--blue)}
.stat-card__label{display:block;font-size:.7rem;color:var(--text2);text-transform:uppercase;letter-spacing:.04em;margin-bottom:4px}
.stat-card__val{display:block;font-size:1.2rem;font-weight:700}

/* ── Service Cards ─────────────────────────────── */
.svc-list{display:flex;flex-direction:column;gap:10px}
.svc-card{
    display:block;background:var(--bg-card);
    border:1px solid var(--border);border-radius:var(--r);
    padding:14px;color:var(--text);
    transition:border-color var(--tr),background var(--tr);
}
.svc-card:hover{border-color:var(--blue);background:var(--bg-card-hover);color:var(--text)}

.svc-card__row{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:10px}
.svc-card__info{display:flex;align-items:center;gap:10px}
.svc-card__flag{width:26px;border-radius:2px;flex-shrink:0}
.svc-card__name{display:block;font-weight:600;font-size:.95rem}
.svc-card__plan{display:block;font-size:.75rem;color:var(--text2);margin-top:1px}

.svc-card__chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.svc-card__chips span{
    background:var(--bg-input);border-radius:4px;
    padding:2px 8px;font-size:.72rem;color:var(--text2);
}

.svc-card__foot{display:flex;align-items:center;justify-content:space-between}
.svc-card__ip{font-family:'SF Mono','Fira Code',monospace;font-size:.8rem;color:var(--text2)}
.svc-card__price{font-weight:600;font-size:.9rem;color:var(--blue-l)}

.svc-card__meta{
    display:flex;flex-wrap:wrap;gap:14px;
    margin-top:8px;padding-top:8px;border-top:1px solid var(--border);
    font-size:.72rem;color:var(--text3);
}

/* ── Badges ────────────────────────────────────── */
.badge{
    display:inline-flex;align-items:center;
    padding:2px 8px;border-radius:16px;
    font-size:.68rem;font-weight:600;text-transform:uppercase;letter-spacing:.03em;
    white-space:nowrap;
}
.badge--ok{background:var(--green-bg);color:var(--green)}
.badge--warn{background:var(--yellow-bg);color:var(--yellow)}
.badge--blue{background:var(--blue-glow);color:var(--blue-l)}
.badge--muted{background:#111;color:var(--text2)}
.badge__flag{height:10px;margin-right:4px;vertical-align:middle}

/* ── Info Card / Rows ──────────────────────────── */
.info-card{
    background:var(--bg-card);border:1px solid var(--border);
    border-radius:var(--r);overflow:hidden;
}
.i-row{
    display:flex;align-items:center;justify-content:space-between;
    padding:12px 14px;border-bottom:1px solid var(--border);gap:10px;
}
.i-row:last-child{border-bottom:none}
.i-row__l{font-size:.82rem;color:var(--text2);flex-shrink:0}
.i-row__v{font-size:.85rem;text-align:right;display:flex;align-items:center;gap:5px;word-break:break-all}
.i-row__flag{width:20px;border-radius:2px}
.mono{font-family:'SF Mono','Fira Code',monospace;font-size:.78rem}
.small{font-size:.72rem}

/* ── Profile Info List (redesigned) ────────────── */
.info-list{display:flex;flex-direction:column;gap:6px}
.info-item{
    display:flex;align-items:center;gap:12px;
    background:var(--bg-card);border:1px solid var(--border);
    border-radius:var(--r);padding:12px 14px;
    cursor:pointer;transition:border-color var(--tr);
}
.info-item:hover{border-color:var(--blue)}
.info-item__icon{
    width:36px;height:36px;border-radius:var(--r-sm);
    background:var(--blue-glow);
    display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.info-item__icon svg{width:18px;height:18px;color:var(--blue-l)}
.info-item__body{flex:1;min-width:0}
.info-item__label{display:block;font-size:.72rem;color:var(--text2);text-transform:uppercase;letter-spacing:.03em}
.info-item__val{display:block;font-size:.9rem;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.info-item__copy{width:16px;height:16px;color:var(--text3);flex-shrink:0;transition:color var(--tr)}
.info-item:hover .info-item__copy{color:var(--blue-l)}

/* ── Metrics ───────────────────────────────────── */
.pill{
    font-size:.72rem;font-weight:600;
    padding:2px 10px;border-radius:16px;
    background:#111;color:var(--text2);
}
.pill--green{background:var(--green-bg);color:var(--green)}
.pill--red{background:var(--red-bg);color:var(--red)}

.metrics-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.m-card{
    background:var(--bg-card);border:1px solid var(--border);
    border-radius:var(--r);padding:14px;
}
.m-card__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.m-card__label{font-size:.72rem;color:var(--text2);text-transform:uppercase;letter-spacing:.03em}
.m-card__val{font-size:1rem;font-weight:700}
.m-card__sub{font-size:.7rem;color:var(--text3);margin-top:4px;display:block}
.c-green{color:var(--green)}.c-red{color:var(--red)}

.prog{width:100%;height:4px;background:#111;border-radius:2px;overflow:hidden}
.prog__fill{height:100%;border-radius:2px;background:var(--blue-l);transition:width .5s ease}
.prog--warn{background:var(--yellow)}
.prog--danger{background:var(--red)}

/* ── Profile Hero ──────────────────────────────── */
.prof-hero{
    text-align:center;padding:28px 14px;
    background:var(--bg-card);border:1px solid var(--border);
    border-radius:var(--r);
}
.prof-hero__avatar{
    width:80px;height:80px;margin:0 auto 14px;
    border-radius:var(--r);overflow:hidden;
    background:#111;
}
.prof-hero__avatar img{width:100%;height:100%;object-fit:cover}
.prof-hero__name{font-size:1.2rem;font-weight:700;margin-bottom:2px}
.prof-hero__email{font-size:.82rem;color:var(--text2)}
.prof-hero__badges{display:flex;justify-content:center;gap:6px;margin-top:12px;flex-wrap:wrap}

/* ── Login ─────────────────────────────────────── */
.login-page{
    position:fixed;inset:0;display:flex;align-items:center;justify-content:center;
    background:var(--bg);padding:20px;
}
.login-card{
    width:100%;max-width:380px;
    background:var(--bg-card);border:1px solid var(--border);
    border-radius:var(--r);padding:28px 20px;
}
.login-card__header{text-align:center;margin-bottom:24px}
.login-card__logo{height:42px;margin-bottom:10px}
.login-card__title{font-size:1.3rem;font-weight:700}
.login-card__sub{color:var(--text2);font-size:.82rem;margin-top:3px}
.login-card__form{display:flex;flex-direction:column;gap:16px}
.login-card__foot{text-align:center;margin-top:18px;font-size:.78rem;color:var(--text3)}

/* ── Form ──────────────────────────────────────── */
.field{display:flex;flex-direction:column;gap:4px}
.field__label{font-size:.78rem;font-weight:500;color:var(--text2)}
.field__input{
    width:100%;padding:10px 12px;
    background:var(--bg-input);border:1px solid var(--border);
    border-radius:var(--r-sm);color:var(--text);font-size:.95rem;
    outline:none;transition:border-color var(--tr);
}
.field__input::placeholder{color:var(--text3)}
.field__input:focus{border-color:var(--blue-l)}

.btn{
    display:inline-flex;align-items:center;justify-content:center;
    padding:10px 20px;border-radius:var(--r-sm);
    font-size:.9rem;font-weight:600;border:none;cursor:pointer;
    transition:background var(--tr),transform .1s;
}
.btn:active{transform:scale(.98)}
.btn--primary{background:var(--blue);color:#fff}
.btn--primary:hover{background:var(--blue-l);color:#fff}
.btn--block{width:100%}

.alert{padding:10px 14px;border-radius:var(--r-sm);font-size:.85rem;margin-bottom:14px}
.alert--error{background:var(--red-bg);color:var(--red);border:1px solid rgba(239,68,68,.2)}
.alert--info{background:var(--blue-glow);color:var(--blue-l);border:1px solid rgba(37,99,235,.2)}

/* ── Billing ───────────────────────────────────── */
.topup-form{
    background:var(--bg-card);border:1px solid var(--border);
    border-radius:var(--r);padding:16px;
    display:flex;flex-direction:column;gap:14px;
}
.method-list{display:flex;flex-direction:column;gap:6px}
.method-opt{
    display:flex;align-items:center;gap:10px;
    padding:10px 12px;border-radius:var(--r-sm);
    background:var(--bg-input);border:1px solid var(--border);
    cursor:pointer;transition:border-color var(--tr);
}
.method-opt:has(input:checked){border-color:var(--blue)}
.method-opt input{accent-color:var(--blue-l)}
.method-opt__name{font-size:.88rem;font-weight:500}
.method-opt__comm{font-size:.75rem;color:var(--text2);margin-left:auto}

.inv-list{display:flex;flex-direction:column;gap:6px}
.inv-item{
    display:flex;align-items:center;justify-content:space-between;
    background:var(--bg-card);border:1px solid var(--border);
    border-radius:var(--r);padding:12px 14px;gap:10px;
}
.inv-item__left{display:flex;flex-direction:column;gap:1px;min-width:0}
.inv-item__id{font-size:.8rem;font-weight:600;color:var(--text)}
.inv-item__desc{font-size:.72rem;color:var(--text2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.inv-item__date{font-size:.68rem;color:var(--text3)}
.inv-item__right{display:flex;flex-direction:column;align-items:flex-end;gap:4px;flex-shrink:0}
.inv-item__amount{font-size:.95rem;font-weight:700}

/* ── Language btn ──────────────────────────────── */
.lang-btn{
    display:inline-block;padding:4px 12px;border-radius:var(--r-sm);
    font-size:.82rem;color:var(--text2);background:var(--bg-input);
    border:1px solid var(--border);transition:all var(--tr);margin-left:4px;
}
.lang-btn--active{background:var(--blue-glow);color:var(--blue-l);border-color:var(--blue)}

/* ── Toast ─────────────────────────────────────── */
.toast{
    position:fixed;bottom:calc(var(--bnav) + 16px + var(--safe-b));
    left:50%;transform:translateX(-50%) translateY(20px);
    background:var(--blue);color:#fff;
    padding:8px 20px;border-radius:20px;font-size:.82rem;font-weight:600;
    opacity:0;transition:opacity .2s,transform .2s;pointer-events:none;z-index:300;
}
.toast--show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ── Empty ─────────────────────────────────────── */
.empty{text-align:center;padding:40px 14px;color:var(--text3)}
.empty__icon{width:48px;height:48px;margin:0 auto 12px;opacity:.3}
.empty .btn{margin-top:14px}

/* ── DESKTOP (>768px) ──────────────────────────── */
@media(min-width:769px){
    .bottom-nav{display:none}
    .topbar__menu-btn{display:none}
    /* Hide topbar logo text on desktop — sidebar has it */
    .topbar__brand{display:none}
    .sidebar__overlay{display:none}
    .sidebar__panel{transform:translateX(0);top:var(--topbar)}
    body{padding-left:var(--sidebar-w);padding-bottom:0}
    .content{padding:28px 32px;max-width:800px}
    .metrics-grid{grid-template-columns:repeat(4,1fr)}
    .stats-row{grid-template-columns:repeat(3,1fr)}
    .toast{bottom:24px}
}

/* ── SKELETON LOADING ──────────────────────────── */
@keyframes shimmer{
    0%{background-position:-200% 0}
    100%{background-position:200% 0}
}
.skel{
    background:linear-gradient(90deg,#111 25%,#1a1a1a 50%,#111 75%);
    background-size:200% 100%;
    animation:shimmer 1.5s infinite;
    border-radius:4px;
    color:transparent!important;
    pointer-events:none;
    user-select:none;
}
.skel *{visibility:hidden}
.skel-text{display:inline-block;min-width:60px;height:1em;vertical-align:middle}
.skel-text--lg{min-width:100px;height:1.3em}
.skel-text--xl{min-width:140px;height:1.5em}
.skel-text--sm{min-width:40px;height:.8em}
.skel-block{display:block;width:100%;height:20px;margin-bottom:6px}
.skel-avatar{width:80px;height:80px;border-radius:var(--r);margin:0 auto 14px}
.skel-card{
    background:var(--bg-card);border:1px solid var(--border);
    border-radius:var(--r);padding:14px;
}
.skel-card .skel-row{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.skel-card .skel-circle{width:26px;height:26px;border-radius:50%;flex-shrink:0}
.skel-card .skel-lines{flex:1}
.skel-card .skel-chips{display:flex;gap:6px;margin-bottom:10px}
.skel-card .skel-chip{width:60px;height:22px;border-radius:4px}
.skel-card .skel-foot{display:flex;justify-content:space-between}
.skel-card .skel-foot-l{width:100px;height:14px}
.skel-card .skel-foot-r{width:60px;height:14px}

.skel-stat{
    background:var(--bg-card);border:1px solid var(--border);
    border-radius:var(--r);padding:14px;text-align:center;
}
.skel-stat .skel-block:first-child{width:60%;height:10px;margin:0 auto 8px}
.skel-stat .skel-block:last-child{width:40%;height:24px;margin:0 auto}

.skel-info-item{
    display:flex;align-items:center;gap:12px;
    background:var(--bg-card);border:1px solid var(--border);
    border-radius:var(--r);padding:12px 14px;
}
.skel-info-item .skel-icon{width:36px;height:36px;border-radius:var(--r-sm);flex-shrink:0}
.skel-info-item .skel-lines{flex:1}

.skel-inv{
    display:flex;align-items:center;justify-content:space-between;
    background:var(--bg-card);border:1px solid var(--border);
    border-radius:var(--r);padding:12px 14px;
}
.skel-inv .skel-left{display:flex;flex-direction:column;gap:4px}
.skel-inv .skel-right{display:flex;flex-direction:column;align-items:flex-end;gap:4px}

.fade-in{animation:fadeIn .3s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}

/* ── SMALL MOBILE (<380px) ─────────────────────── */
@media(max-width:380px){
    .content{padding:12px 10px}
    .stat-card__val{font-size:1rem}
    .svc-card{padding:10px}
    .metrics-grid{grid-template-columns:1fr}
    .stats-row{grid-template-columns:1fr 1fr}
}