/* ── Страница входа Video Dub: тёмный high-tech ─────────────────────── */
:root {
    --vd-bg: #05070d;
    --vd-panel: rgba(12, 17, 30, .72);
    --vd-line: rgba(120, 160, 220, .14);
    --vd-text: #e6edf7;
    --vd-muted: #7d8aa3;
    --vd-cyan: #22d3ee;
    --vd-violet: #a855f7;
    --vd-danger: #fb7185;
    --vd-grad: linear-gradient(110deg, var(--vd-cyan), var(--vd-violet));
}

html, body { height: 100%; }

body.vd-login {
    margin: 0;
    background: var(--vd-bg);
    color: var(--vd-text);
    font-family: 'Manrope', system-ui, sans-serif;
    overflow-x: hidden;
}

/* ── Фон ── */
.vd-bg { position: fixed; inset: 0; overflow: hidden; pointer-events: none; }

.vd-grid {
    position: absolute; inset: -50% -50% 0 -50%;
    background-image:
        linear-gradient(rgba(34, 211, 238, .07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(34, 211, 238, .07) 1px, transparent 1px);
    background-size: 56px 56px;
    transform: perspective(700px) rotateX(58deg) translateY(30%);
    transform-origin: center bottom;
    mask-image: linear-gradient(to top, #000 10%, transparent 75%);
    animation: vd-grid-move 14s linear infinite;
}
@keyframes vd-grid-move { to { background-position: 0 56px, 0 0; } }

.vd-orb {
    position: absolute; width: 46vmax; height: 46vmax; border-radius: 50%;
    filter: blur(90px); opacity: .28;
    animation: vd-float 18s ease-in-out infinite alternate;
}
.vd-orb--cyan   { background: var(--vd-cyan);   top: -18vmax; left: -12vmax; }
.vd-orb--violet { background: var(--vd-violet); bottom: -22vmax; right: -14vmax; animation-delay: -9s; }
@keyframes vd-float { to { transform: translate(6vmax, 4vmax) scale(1.08); } }

.vd-scan {
    position: absolute; inset: 0;
    background: repeating-linear-gradient(to bottom, rgba(255,255,255,.018) 0 1px, transparent 1px 3px);
}

/* ── Карточка ── */
.vd-card {
    position: relative;
    width: 100%; max-width: 440px;
    padding: 2.25rem 2rem 1.5rem;
    background: var(--vd-panel);
    border: 1px solid var(--vd-line);
    border-radius: 18px;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    box-shadow: 0 0 0 1px rgba(255,255,255,.02) inset, 0 30px 80px -20px rgba(0,0,0,.8), 0 0 60px -30px var(--vd-cyan);
    animation: vd-rise .7s cubic-bezier(.2,.8,.2,1) both;
}
@keyframes vd-rise { from { opacity: 0; transform: translateY(18px) scale(.98); } }

.vd-corner { position: absolute; width: 22px; height: 22px; border-color: var(--vd-cyan); border-style: solid; opacity: .8; }
.vd-corner--tl { top: -1px; left: -1px; border-width: 2px 0 0 2px; border-top-left-radius: 18px; }
.vd-corner--br { bottom: -1px; right: -1px; border-width: 0 2px 2px 0; border-bottom-right-radius: 18px; border-color: var(--vd-violet); }

/* ── Бренд ── */
.vd-brand { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.5rem; }
.vd-logo {
    flex: none; width: 56px; height: 56px; border-radius: 14px;
    display: grid; place-items: center;
    background: #0b0f1a; border: 1px solid var(--vd-line);
    box-shadow: 0 0 24px -6px var(--vd-cyan);
}
.vd-logo svg { width: 40px; height: 40px; }
.vd-title {
    font-family: 'Unbounded', sans-serif; font-weight: 700;
    font-size: 1.55rem; letter-spacing: .08em; margin: 0; line-height: 1.1;
}
.vd-title span { margin-left: .35em; background: var(--vd-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.vd-subtitle { margin: .35rem 0 0; color: var(--vd-muted); font-size: .9rem; }

/* ── Звуковая волна ── */
.vd-wave {
    height: 46px; display: flex; align-items: center; gap: 3px;
    margin-bottom: .75rem;
}
.vd-wave i {
    flex: 1; height: var(--h); min-height: 3px; border-radius: 2px;
    background: var(--vd-grad); background-size: 4800% 100%;
    opacity: .85;
    transform-origin: center;
    animation: vd-bar 1.2s ease-in-out infinite alternate;
}
.vd-wave i:nth-child(odd) { background-position: 0 0; }
.vd-wave i:nth-child(even) { background-position: 100% 0; }
@keyframes vd-bar { from { transform: scaleY(.25); } to { transform: scaleY(1); } }
.vd-wave.is-static i { animation: none; transform: scaleY(.7); }
.vd-wave.is-boost i { animation-duration: .35s !important; }

/* ── Бегущая строка языков ── */
.vd-langs {
    overflow: hidden; margin-bottom: 1.5rem;
    mask-image: linear-gradient(90deg, transparent, #000 15%, #000 85%, transparent);
}
.vd-langs__track { display: flex; gap: .5rem; width: max-content; animation: vd-marquee 22s linear infinite; }
.vd-langs__track span {
    font-family: 'JetBrains Mono', monospace; font-size: .72rem; letter-spacing: .1em;
    color: var(--vd-muted); padding: .2rem .55rem;
    border: 1px solid var(--vd-line); border-radius: 6px;
}
.vd-langs__track span:nth-child(3n+1) { color: var(--vd-cyan); border-color: rgba(34,211,238,.3); }
@keyframes vd-marquee { to { transform: translateX(-50%); } }

/* ── Ошибка ── */
.vd-alert {
    display: flex; align-items: center; gap: .6rem;
    padding: .7rem .9rem; margin-bottom: 1.25rem;
    font-size: .88rem; color: #fecdd3;
    background: rgba(251, 113, 133, .08);
    border: 1px solid rgba(251, 113, 133, .35); border-radius: 10px;
}
.vd-alert__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--vd-danger); box-shadow: 0 0 10px var(--vd-danger); flex: none; }

/* ── Поля ── */
.vd-field { margin-bottom: 1.1rem; }
.vd-label {
    display: block; margin-bottom: .4rem;
    font-family: 'JetBrains Mono', monospace; font-size: .72rem;
    letter-spacing: .14em; text-transform: uppercase; color: var(--vd-muted);
    transition: color .2s;
}
.vd-field.is-focus .vd-label { color: var(--vd-cyan); }

.vd-input.form-control {
    height: 48px; padding: .6rem .9rem;
    color: var(--vd-text); background: rgba(5, 8, 15, .7);
    border: 1px solid var(--vd-line); border-radius: 10px;
    transition: border-color .2s, box-shadow .2s;
}
.vd-input.form-control::placeholder { color: #47536b; }
.vd-input.form-control:focus {
    color: var(--vd-text); background: rgba(5, 8, 15, .9);
    border-color: var(--vd-cyan);
    box-shadow: 0 0 0 3px rgba(34, 211, 238, .15), 0 0 24px -8px var(--vd-cyan);
}
.vd-input.form-control.is-invalid { border-color: var(--vd-danger); box-shadow: 0 0 0 3px rgba(251, 113, 133, .15); background-image: none; }
.vd-input:-webkit-autofill { -webkit-text-fill-color: var(--vd-text); -webkit-box-shadow: 0 0 0 100px #070b14 inset; caret-color: var(--vd-text); }

.vd-input-wrap { position: relative; }
.vd-input-wrap .vd-input { padding-right: 2.8rem; }
.vd-eye {
    position: absolute; top: 50%; right: .5rem; transform: translateY(-50%);
    width: 34px; height: 34px; display: grid; place-items: center;
    background: none; border: 0; border-radius: 8px; color: var(--vd-muted);
    transition: color .2s, background .2s;
}
.vd-eye:hover, .vd-eye.is-active { color: var(--vd-cyan); background: rgba(34, 211, 238, .08); }
.vd-eye:focus-visible { outline: 2px solid var(--vd-cyan); outline-offset: 1px; }

.vd-check .form-check-input { background-color: transparent; border-color: #3a4660; }
.vd-check .form-check-input:checked { background-color: var(--vd-cyan); border-color: var(--vd-cyan); }
.vd-check .form-check-input:focus { box-shadow: 0 0 0 3px rgba(34, 211, 238, .2); border-color: var(--vd-cyan); }
.vd-check .form-check-label { font-size: .88rem; color: #b7c2d6; }

.vd-status { display: inline-flex; align-items: center; gap: .45rem; font-family: 'JetBrains Mono', monospace; font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; color: var(--vd-muted); }
.vd-status i { width: 7px; height: 7px; border-radius: 50%; background: #34d399; box-shadow: 0 0 10px #34d399; animation: vd-pulse 2s ease-in-out infinite; }
@keyframes vd-pulse { 50% { opacity: .35; } }

/* ── Кнопка ── */
.vd-btn {
    position: relative; height: 50px; overflow: hidden;
    display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
    font-family: 'Unbounded', sans-serif; font-weight: 500; font-size: .9rem; letter-spacing: .12em; text-transform: uppercase;
    color: #04121a; background: var(--vd-grad);
    border: 0; border-radius: 10px;
    box-shadow: 0 10px 30px -10px var(--vd-cyan), 0 10px 40px -15px var(--vd-violet);
    transition: transform .15s, box-shadow .2s, filter .2s;
}
.vd-btn::after {
    content: ''; position: absolute; top: 0; left: -60%; width: 40%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.45), transparent);
    transform: skewX(-20deg); transition: left .6s;
}
.vd-btn:hover { filter: brightness(1.08); box-shadow: 0 12px 36px -8px var(--vd-cyan), 0 12px 46px -12px var(--vd-violet); }
.vd-btn:hover::after { left: 120%; }
.vd-btn:active { transform: translateY(1px); }
.vd-btn:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }
.vd-btn:disabled { opacity: .85; cursor: progress; }

/* ── Подвал ── */
.vd-foot {
    display: flex; justify-content: space-between; margin-top: 1.5rem; padding-top: 1rem;
    border-top: 1px solid var(--vd-line); font-size: .75rem; color: #56627a;
}
.vd-mono { font-family: 'JetBrains Mono', monospace; letter-spacing: .12em; }

@media (max-width: 480px) {
    .vd-card { padding: 1.75rem 1.25rem 1.25rem; border-radius: 14px; }
    .vd-title { font-size: 1.3rem; }
    .vd-status { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; }
}