:root {
    color-scheme: dark;
    --black: #030303;
    --soft-black: #0b0b0d;
    --white: #f7f7f5;
    --red: #e32636;
}

* {
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    min-height: 100%;
    margin: 0;
}

body {
    overflow: hidden;
    background: var(--black);
    font-family: Inter, Arial, sans-serif;
}

.login-page {
    position: relative;
    width: 100vw;
    height: 100vh;
    min-height: 620px;
    overflow: hidden;
    isolation: isolate;
    background:
        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        radial-gradient(circle at 50% 8%, rgba(227, 38, 54, 0.13), transparent 30%),
        var(--black);
    background-size: 52px 52px, 52px 52px, auto, auto;
}

.login-page::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 8;
    pointer-events: none;
    background: linear-gradient(
        115deg,
        rgba(255, 255, 255, 0.025),
        transparent 35%,
        transparent 70%,
        rgba(227, 38, 54, 0.035)
    );
}

.brand-logo {
    position: absolute;
    top: 24px;
    left: 24px;
    z-index: 20;
    display: grid;
    width: 58px;
    height: 58px;
    place-items: center;
    border-radius: 18px;
    color: var(--black);
    background: var(--white);
    box-shadow: 0 16px 42px rgba(0, 0, 0, 0.4);
    font-size: 28px;
    font-weight: 900;
    text-decoration: none;
    transition: transform 220ms ease, box-shadow 220ms ease;
}

.brand-logo:hover {
    transform: rotate(-6deg) scale(1.06);
    box-shadow: 0 0 32px rgba(255, 255, 255, 0.24);
}

.web {
    position: absolute;
    z-index: 1;
    pointer-events: none;
    border-radius: 50%;
    background:
        repeating-radial-gradient(
            circle,
            transparent 0 53px,
            rgba(255, 255, 255, 0.12) 54px 55px
        ),
        repeating-conic-gradient(
            from 0deg,
            rgba(255, 255, 255, 0.13) 0deg 0.8deg,
            transparent 0.8deg 20deg
        );
    mask-image: radial-gradient(circle, black 0 67%, transparent 76%);
}

.web-large {
    top: -610px;
    left: 50%;
    width: 1220px;
    height: 1220px;
    margin-left: -610px;
    animation: web-breathe 7s ease-in-out infinite;
}

.web-corner {
    right: -360px;
    bottom: -360px;
    width: 720px;
    height: 720px;
    opacity: 0.35;
    animation: web-turn 44s linear infinite;
}

.red-glow {
    position: absolute;
    top: 4%;
    left: 50%;
    z-index: 2;
    pointer-events: none;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    transform: translateX(-50%);
    background: radial-gradient(
        circle,
        rgba(227, 38, 54, 0.25),
        rgba(227, 38, 54, 0.07) 35%,
        transparent 70%
    );
    filter: blur(8px);
    animation: glow-pulse 3.8s ease-in-out infinite;
}

.silk-drop {
    position: absolute;
    top: -230px;
    left: 50%;
    z-index: 10;
    pointer-events: none;
    width: 140px;
    height: 430px;
    margin-left: -70px;
    animation: spider-descend 7s cubic-bezier(0.45, 0.05, 0.55, 0.95) infinite;
}

.silk-thread {
    position: absolute;
    top: 0;
    left: 50%;
    width: 1px;
    height: 315px;
    background: linear-gradient(
        transparent,
        rgba(255, 255, 255, 0.3) 15%,
        rgba(255, 255, 255, 0.9)
    );
    box-shadow: 0 0 5px rgba(255, 255, 255, 0.25);
}

.spider {
    position: absolute;
    bottom: 10px;
    left: 50%;
    width: 90px;
    height: 105px;
    margin-left: -45px;
    filter: drop-shadow(0 18px 18px rgba(0, 0, 0, 0.9));
    transform-origin: 50% -80px;
    animation: spider-sway 3.2s ease-in-out infinite;
}

.spider-body {
    position: absolute;
    top: 43px;
    left: 29px;
    z-index: 4;
    width: 34px;
    height: 48px;
    border-radius: 48% 48% 56% 56%;
    background:
        radial-gradient(circle at 34% 22%, #5b5b5b 0, #202020 20%, #090909 56%, #000 82%);
    box-shadow:
        inset -7px -9px 12px #000,
        inset 4px 2px 7px rgba(255, 255, 255, 0.12),
        0 0 24px rgba(227, 38, 54, 0.18);
}

.spider-head {
    position: absolute;
    top: 25px;
    left: 33px;
    z-index: 5;
    width: 27px;
    height: 25px;
    border-radius: 48%;
    background: radial-gradient(circle at 35% 25%, #555, #111 48%, #020202 80%);
    box-shadow: inset -4px -5px 7px #000;
}

.eye {
    position: absolute;
    top: 7px;
    width: 5px;
    height: 7px;
    border-radius: 50%;
    background: #ddd;
    box-shadow: 0 0 5px rgba(255, 255, 255, 0.7);
}

.eye-left {
    left: 6px;
    transform: rotate(-16deg);
}

.eye-right {
    right: 6px;
    transform: rotate(16deg);
}

.spider-mark {
    position: absolute;
    top: 56px;
    left: 40px;
    z-index: 6;
    width: 13px;
    height: 20px;
    background: var(--red);
    clip-path: polygon(50% 0, 100% 42%, 70% 100%, 50% 72%, 30% 100%, 0 42%);
    animation: mark-pulse 2.1s ease-in-out infinite;
}

.leg {
    position: absolute;
    top: 40px;
    z-index: 2;
    width: 38px;
    height: 4px;
    border-radius: 100%;
    background: linear-gradient(90deg, #050505, #444 48%, #050505);
    transform-origin: center;
}

.leg::after {
    content: "";
    position: absolute;
    top: 1px;
    width: 31px;
    height: 3px;
    border-radius: 100%;
    background: linear-gradient(90deg, #171717, #4a4a4a, #020202);
}

.leg-left-one {
    left: 1px;
    top: 31px;
    transform: rotate(25deg);
}

.leg-left-one::after {
    left: -23px;
    transform: rotate(35deg);
}

.leg-left-two {
    left: -3px;
    top: 43px;
    transform: rotate(8deg);
}

.leg-left-two::after {
    left: -25px;
    transform: rotate(18deg);
}

.leg-left-three {
    left: -1px;
    top: 55px;
    transform: rotate(-13deg);
}

.leg-left-three::after {
    left: -24px;
    transform: rotate(-22deg);
}

.leg-left-four {
    left: 6px;
    top: 66px;
    transform: rotate(-32deg);
}

.leg-left-four::after {
    left: -21px;
    transform: rotate(-38deg);
}

.leg-right-one {
    right: 0;
    top: 31px;
    transform: rotate(-25deg);
}

.leg-right-one::after {
    right: -23px;
    transform: rotate(-35deg);
}

.leg-right-two {
    right: -3px;
    top: 43px;
    transform: rotate(-8deg);
}

.leg-right-two::after {
    right: -25px;
    transform: rotate(-18deg);
}

.leg-right-three {
    right: -1px;
    top: 55px;
    transform: rotate(13deg);
}

.leg-right-three::after {
    right: -24px;
    transform: rotate(22deg);
}

.leg-right-four {
    right: 6px;
    top: 66px;
    transform: rotate(32deg);
}

.leg-right-four::after {
    right: -21px;
    transform: rotate(38deg);
}

.credentials-area {
    position: absolute;
    z-index: 12;
    right: 0;
    bottom: 0;
    left: 0;
    display: flex;
    justify-content: center;
    padding: 24px;
    pointer-events: auto;
}

.auth-glass {
    position: relative;
    width: min(960px, 100%);
    padding: 22px 24px 18px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 24px;
    background: rgba(8, 8, 10, 0.66);
    box-shadow:
        0 26px 80px rgba(0, 0, 0, 0.5),
        inset 0 1px rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.auth-tabs {
    position: absolute;
    z-index: 50;
    top: 18px;
    right: 22px;
    display: flex;
    gap: 5px;
    padding: 4px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.04);
    pointer-events: auto;
}

.auth-tab,
.text-button,
.password-toggle {
    border: 0;
    color: #a9a9ad;
    background: transparent;
    font: inherit;
    cursor: pointer;
}

.auth-tab {
    position: relative;
    z-index: 51;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 12px;
}

.auth-tab.active {
    color: var(--black);
    background: var(--white);
}

.auth-form {
    animation: form-arrive 260ms ease both;
}

.auth-form[hidden] {
    display: none;
}

.form-heading {
    padding-right: 270px;
}

.form-heading p {
    margin: 0 0 4px;
    color: var(--red);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.18em;
}

.form-heading h1 {
    margin: 0;
    color: var(--white);
    font-size: clamp(22px, 3vw, 30px);
    font-weight: 600;
    line-height: 1.1;
}

.field-row {
    display: grid;
    grid-template-columns: minmax(160px, 1fr) minmax(190px, 1fr) 130px;
    align-items: end;
    gap: 14px;
    margin-top: 18px;
}

.register-row {
    grid-template-columns: repeat(3, minmax(145px, 1fr)) 150px;
}

.auth-field {
    display: block;
    min-width: 0;
    color: #c8c8cc;
    font-size: 12px;
}

.auth-field > span:first-child {
    display: block;
    margin-bottom: 7px;
}

.auth-field input {
    width: 100%;
    height: 46px;
    padding: 0 14px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 12px;
    outline: none;
    color: var(--white);
    background: rgba(255, 255, 255, 0.055);
    font: inherit;
    font-size: 14px;
    transition: border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.auth-field input::placeholder {
    color: #77777d;
}

.auth-field input:focus {
    border-color: rgba(227, 38, 54, 0.9);
    background: rgba(255, 255, 255, 0.075);
    box-shadow: 0 0 0 3px rgba(227, 38, 54, 0.14);
}

.password-wrap {
    position: relative;
    display: block;
}

.password-wrap .spider-password {
    padding-right: 58px;
}

.password-wrap .spider-password.is-masked {
    color: transparent;
    -webkit-text-fill-color: transparent;
    caret-color: transparent !important;
}

.spider-mask {
    position: absolute;
    top: 50%;
    right: 58px;
    left: 14px;
    display: flex;
    align-items: center;
    gap: 0;
    overflow: hidden;
    height: 22px;
    transform: translateY(-50%);
    pointer-events: none;
    white-space: nowrap;
}

.password-spider {
    display: inline-block;
    flex: 0 0 10px;
    width: 10px;
    margin: 0 -1px 0 0;
    color: #d9d9dc;
    font-size: 10px;
    line-height: 1;
    filter: grayscale(1) contrast(1.35);
    animation: tiny-spider-pop 180ms cubic-bezier(0.2, 0.9, 0.3, 1.35) both;
}

.password-toggle {
    position: absolute;
    top: 50%;
    right: 12px;
    display: grid;
    width: 28px;
    height: 28px;
    padding: 0;
    place-items: center;
    border: 0;
    background: transparent;
    transform: translateY(-50%);
    cursor: pointer;
}

.password-toggle:hover,
.text-button:hover {
    color: var(--white);
}

.submit-button {
    height: 46px;
    padding: 0 18px;
    border: 0;
    border-radius: 12px;
    color: #fff;
    background: linear-gradient(135deg, var(--red), #8b0012);
    box-shadow: 0 12px 28px rgba(227, 38, 54, 0.22);
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 180ms ease, box-shadow 180ms ease;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 34px rgba(227, 38, 54, 0.32);
}

.secure-login-row {
    display: grid;
    grid-template-columns: minmax(160px, 1fr) minmax(190px, 1fr) 130px;
    gap: 14px;
    margin-top: 12px;
}

.secure-login-option {
    position: relative;
    grid-column: 3;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 28px;
    color: #b8b8bd;
    font-size: 12px;
    cursor: pointer;
    user-select: none;
}

.secure-login-checkbox {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
}

.secure-spider-box {
    display: grid;
    flex: 0 0 25px;
    width: 25px;
    height: 25px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.045);
    transition:
        border-color 180ms ease,
        background 180ms ease,
        box-shadow 180ms ease,
        transform 180ms ease;
}

.secure-spider {
    color: #8d8d93;
    font-size: 13px;
    line-height: 1;
    filter: grayscale(1);
    opacity: 0.7;
    transform: scale(0.86);
    transition:
        color 180ms ease,
        filter 180ms ease,
        opacity 180ms ease,
        transform 180ms ease;
}

.secure-login-option:hover .secure-spider-box {
    border-color: rgba(227, 38, 54, 0.55);
}

.secure-login-checkbox:focus-visible + .secure-spider-box {
    outline: 2px solid rgba(247, 247, 245, 0.9);
    outline-offset: 3px;
}

.secure-login-checkbox:checked + .secure-spider-box {
    border-color: var(--red);
    background: rgba(227, 38, 54, 0.18);
    box-shadow:
        0 0 0 3px rgba(227, 38, 54, 0.1),
        0 0 18px rgba(227, 38, 54, 0.5);
    transform: translateY(-1px);
}

.secure-login-checkbox:checked + .secure-spider-box .secure-spider {
    color: #ff4454;
    filter: grayscale(0) drop-shadow(0 0 4px rgba(255, 40, 58, 0.95));
    opacity: 1;
    transform: scale(1);
}

.secure-login-checkbox:checked ~ .secure-login-label {
    color: var(--white);
}

.text-button {
    padding: 4px 0;
    font-size: 12px;
}

.auth-message {
    min-height: 16px;
    margin: 8px 0 0;
    color: #c9c9cc;
    font-size: 12px;
    text-align: center;
}

.auth-message.success {
    color: #78d99b;
}

.auth-message.error {
    color: #ff6b78;
}

.password-eye-svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: #b9b9bd;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: stroke 0.2s ease, transform 0.2s ease;
}

.password-toggle:hover .password-eye-svg {
    stroke: #ffffff;
    transform: scale(1.08);
}

.password-toggle.password-visible .password-eye-svg {
    stroke: var(--red);
}

.spider-password::-ms-reveal,
.spider-password::-ms-clear {
    display: none;
}

.spider-password::-webkit-credentials-auto-fill-button {
    display: none !important;
    visibility: hidden;
    pointer-events: none;
}

.auth-field input:-webkit-autofill,
.auth-field input:-webkit-autofill:hover,
.auth-field input:-webkit-autofill:focus {
    -webkit-box-shadow: 0 0 0 1000px #17181d inset;
    -webkit-text-fill-color: var(--white);
    caret-color: var(--white);
}

.password-wrap .spider-password.is-masked:-webkit-autofill {
    -webkit-text-fill-color: transparent;
    caret-color: transparent;
}

.spider-mask.has-focus::after {
    content: "";
    display: inline-block;
    flex: 0 0 auto;
    width: 2px;
    height: 14px;
    margin-left: 2px;
    background: #ffffff;
    animation: password-cursor-blink 0.9s steps(1) infinite;
}

@keyframes password-cursor-blink {
    0%, 45% {
        opacity: 1;
    }

    46%, 100% {
        opacity: 0;
    }
}

@keyframes spider-descend {
    0%, 100% {
        transform: translateY(-120px);
    }

    43%, 64% {
        transform: translateY(355px);
    }
}

@keyframes spider-sway {
    0%, 100% {
        transform: rotate(-5deg) translateX(-3px);
    }

    50% {
        transform: rotate(6deg) translateX(3px);
    }
}

@keyframes web-breathe {
    0%, 100% {
        transform: scale(1);
        opacity: 0.62;
    }

    50% {
        transform: scale(1.035);
        opacity: 0.85;
    }
}

@keyframes web-turn {
    to {
        transform: rotate(360deg);
    }
}

@keyframes glow-pulse {
    0%, 100% {
        opacity: 0.52;
        transform: translateX(-50%) scale(0.9);
    }

    50% {
        opacity: 1;
        transform: translateX(-50%) scale(1.12);
    }
}

@keyframes mark-pulse {
    50% {
        opacity: 0.72;
        filter: drop-shadow(0 0 10px var(--red));
    }
}

@keyframes form-arrive {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes tiny-spider-pop {
    from {
        opacity: 0;
        transform: translateY(-9px) scale(0.3);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 700px) {
    .login-page {
        min-height: 560px;
    }

    .brand-logo {
        top: 18px;
        left: 18px;
        width: 52px;
        height: 52px;
        border-radius: 16px;
        font-size: 25px;
    }

    .web-large {
        top: -490px;
        width: 920px;
        height: 920px;
        margin-left: -460px;
    }

    .spider {
        transform: scale(0.85);
    }

    body {
        overflow: auto;
    }

    .login-page {
        min-height: 760px;
    }

    .credentials-area {
        padding: 14px;
    }

    .auth-glass {
        padding: 20px 18px 16px;
    }

    .auth-tabs {
        position: static;
        width: max-content;
        margin-bottom: 16px;
    }

    .form-heading {
        padding-right: 0;
    }

    .field-row,
    .register-row {
        grid-template-columns: 1fr;
        gap: 11px;
    }

    .secure-login-row {
        grid-template-columns: 1fr;
        gap: 0;
        margin-top: 12px;
    }

    .secure-login-option {
        grid-column: 1;
        justify-content: flex-start;
    }
}

@media (prefers-reduced-motion: reduce) {
    .web,
    .red-glow,
    .silk-drop,
    .spider,
    .spider-mark {
        animation: none;
    }

    .silk-drop {
        top: 40px;
    }
}