:root {
    --auth-bg: #080d14;
    --auth-panel: #111b28;
    --auth-panel-strong: #152231;
    --auth-line: #233247;
    --auth-text: #eef4ff;
    --auth-muted: #8795a9;
    --auth-accent: #f2b731;
    --auth-green: #00c087;
    --auth-red: #f0445a;
    color-scheme: dark;
    font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Noto Sans CJK SC", sans-serif;
}

* { box-sizing: border-box; }

html { min-width: 320px; min-height: 100%; background: var(--auth-bg); }

body {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    color: var(--auth-text);
    background: var(--auth-bg);
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
}

button,
input { font: inherit; }
button { border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
svg { display: block; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }

.auth-page { position: relative; overflow-x: hidden; }

.auth-shell {
    position: relative;
    width: min(100%, 480px);
    min-height: 100vh;
    margin: 0 auto;
    padding: max(12px, env(safe-area-inset-top)) 14px calc(24px + env(safe-area-inset-bottom));
}

.auth-topbar { position: relative; display: flex; min-height: 58px; align-items: center; justify-content: space-between; }
.auth-back,
.auth-language { width: 40px; height: 40px; flex: 0 0 40px; }
.auth-back { display: grid; place-items: center; border: 1px solid var(--auth-line); border-radius: 10px; color: #abb7c8; background: var(--auth-panel); transition: color 160ms ease, border-color 160ms ease, transform 160ms ease; }
.auth-back:active { transform: scale(.94); }
.auth-back svg { width: 21px; height: 21px; }
.auth-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 850; letter-spacing: .13em; }
.auth-brand-mark { display: block; width: 38px; height: 38px; }
.auth-brand strong { font-size: 15px; }

.auth-language-trigger { display: grid; width: 40px; height: 40px; place-items: center; padding: 5px 7px 4px; border: 1px solid var(--auth-line); border-radius: 10px; color: #8795a9; background: var(--auth-panel); }
.auth-language-trigger svg { width: 13px; height: 13px; margin-top: -1px; }
.auth-language-flag { display: block; width: 24px; height: 16px; overflow: hidden; border: 1px solid rgba(255,255,255,.16); border-radius: 3px; }
.auth-language-flag img { display: block; width: 100%; height: 100%; object-fit: cover; }
.auth-language-menu { position: absolute; z-index: 30; inset-block-start: 52px; inset-inline-end: 0; width: 188px; overflow: hidden; padding: 6px; border: 1px solid var(--auth-line); border-radius: 12px; background: #111b28; box-shadow: 0 16px 38px rgba(0,0,0,.38); }
.auth-language-menu[hidden] { display: none; }
.auth-language-menu button { display: grid; width: 100%; min-height: 44px; grid-template-columns: 30px minmax(0,1fr) 20px; align-items: center; gap: 9px; padding: 7px 9px; border-radius: 8px; color: #c5cfdd; background: transparent; text-align: start; }
.auth-language-menu button:hover,
.auth-language-menu button:focus-visible { background: #182536; outline: 0; }
.auth-language-menu button img { display: block; width: 28px; height: 19px; object-fit: cover; border: 1px solid rgba(255,255,255,.14); border-radius: 3px; }
.auth-language-menu button span { font-size: 13px; font-weight: 700; }
.auth-language-menu button i { visibility: hidden; color: var(--auth-accent); font-size: 14px; font-style: normal; }
.auth-language-menu button.is-active i { visibility: visible; }

.auth-card { margin-top: 17px; padding: 24px 20px 22px; border: 1px solid var(--auth-line); border-radius: 16px; background: var(--auth-panel); }
.auth-heading { margin-bottom: 24px; }
.auth-heading h1 { margin: 0; font-size: 25px; line-height: 1.25; letter-spacing: -.02em; }
.auth-heading p { margin: 8px 0 0; color: var(--auth-muted); font-size: 13px; line-height: 1.6; }

.auth-alert { margin-bottom: 17px; padding: 11px 13px; border: 1px solid; border-radius: 11px; font-size: 12px; line-height: 1.5; }
.auth-alert--success { color: #50dbad; border-color: rgba(0,192,135,.25); background: rgba(0,192,135,.08); }
.auth-alert--danger { color: #ff8494; border-color: rgba(240,68,90,.25); background: rgba(240,68,90,.08); }
.auth-alert--notice { color: #e2c67e; border-color: rgba(242,183,49,.24); background: rgba(242,183,49,.075); }
.auth-required-message[hidden] { display: none; }

.auth-form { display: grid; gap: 16px; }
.auth-field { display: grid; gap: 8px; min-width: 0; }
.auth-field > span:first-child { color: #b6c1d0; font-size: 12px; font-weight: 720; }
.auth-field em { margin-left: 5px; color: #65748a; font-size: 10px; font-style: normal; font-weight: 600; }
.auth-input-shell { position: relative; display: block; min-width: 0; }
.auth-input-shell input { width: 100%; height: 50px; padding: 0 47px; border: 1px solid var(--auth-line); border-radius: 10px; outline: 0; color: var(--auth-text); background: var(--auth-bg); transition: border-color 160ms ease, background 160ms ease; }
.auth-input-shell input:not(:has(~ .password-toggle)):not(:placeholder-shown) { padding-right: 15px; }
.auth-input-shell input:focus { border-color: var(--auth-accent); background: #0a1018; }
.auth-input-shell input::placeholder { color: #536176; }
.auth-input-shell input:disabled { color: #667386; background: rgba(8,13,20,.35); cursor: not-allowed; }
.auth-field-icon { position: absolute; z-index: 1; top: 50%; left: 15px; width: 19px; height: 19px; color: #64738a; transform: translateY(-50%); pointer-events: none; }

.password-toggle { position: absolute; z-index: 2; top: 50%; right: 7px; display: grid; width: 38px; height: 38px; place-items: center; border-radius: 10px; color: #77869b; background: transparent; transform: translateY(-50%); transition: color 160ms ease, background 160ms ease; }
.password-toggle:hover,
.password-toggle:focus-visible { color: var(--auth-accent); background: rgba(242,183,49,.08); outline: 0; }
.password-toggle svg { width: 20px; height: 20px; }
.password-toggle .eye-closed { display: none; }
.password-toggle.is-visible .eye-open { display: none; }
.password-toggle.is-visible .eye-closed { display: block; }

.auth-code-row { display: grid; grid-template-columns: minmax(0, 1fr) 112px; gap: 9px; }
.send-code-button { min-height: 50px; padding: 0 10px; border-radius: 10px; color: #101925; background: var(--auth-accent); font-size: 11px; font-weight: 820; transition: filter 160ms ease, transform 160ms ease; }
.send-code-button:active { transform: scale(.97); }
.send-code-button:disabled { color: #6e7b8e; background: #1d2a3a; cursor: not-allowed; }
.code-feedback { min-height: 16px; color: var(--auth-muted); font-size: 10px; line-height: 1.5; }
.code-feedback:empty { display: none; }
.code-feedback.is-success { color: var(--auth-green); }
.code-feedback.is-error { color: #ff7588; }
.code-feedback.is-info { color: #8290a4; }

.auth-field-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.auth-field-grid .auth-input-shell input { padding-left: 14px; }

.human-verification { display: grid; gap: 9px; padding: 12px; border: 1px solid var(--auth-line); border-radius: 12px; background: #0b121c; }
.human-verification__header { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: #b6c1d0; font-size: 12px; font-weight: 720; }
.human-verification__header button { display: inline-flex; align-items: center; gap: 5px; padding: 4px 2px; color: #75849a; background: transparent; font-size: 10px; font-weight: 680; }
.human-verification__header button:hover,
.human-verification__header button:focus-visible { color: var(--auth-accent); outline: 0; }
.human-verification__header button:disabled { color: #4e5b6e; cursor: wait; }
.human-verification__header svg { width: 14px; height: 14px; }
.human-verification__puzzle { position: relative; overflow: hidden; width: 100%; aspect-ratio: 300 / 132; border: 1px solid #26364a; border-radius: 9px; background: #111c2a; }
.human-verification__background { display: block; width: 100%; height: 100%; object-fit: fill; opacity: 0; transition: opacity 160ms ease; }
.human-verification__piece { position: absolute; z-index: 2; left: 0; width: var(--human-piece-width, 15.333%); height: auto; opacity: 0; filter: drop-shadow(0 2px 4px rgba(0,0,0,.5)); transform: translate3d(var(--human-piece-x, 0px), 0, 0); will-change: transform; }
.human-verification__loading { position: absolute; inset: 0; display: grid; place-items: center; color: #64738a; font-size: 10px; }
.human-verification.is-ready .human-verification__background,
.human-verification.is-ready .human-verification__piece { opacity: 1; }
.human-verification.is-ready .human-verification__loading { display: none; }
.human-verification__track { position: relative; height: 45px; overflow: hidden; border: 1px solid #28384d; border-radius: 9px; background: #141f2e; touch-action: none; user-select: none; }
.human-verification__progress { position: absolute; inset-block: 0; left: 0; width: var(--human-progress, 0px); background: rgba(242,183,49,.13); }
.human-verification__instruction { position: absolute; inset: 0; display: grid; place-items: center; padding-inline-start: 44px; color: #77869a; font-size: 10px; pointer-events: none; transition: opacity 140ms ease; }
.human-verification__handle { position: absolute; z-index: 3; inset-block: 0; left: 0; display: grid; width: 45px; height: 43px; place-items: center; border-right: 1px solid #34475f; color: #dbe3ee; background: #203047; transform: translate3d(var(--human-handle-x, 0px), 0, 0); touch-action: none; will-change: transform; }
.human-verification__handle:focus-visible { outline: 2px solid var(--auth-accent); outline-offset: -3px; }
.human-verification__handle:disabled { color: #627087; cursor: wait; }
.human-verification__handle svg { width: 22px; height: 22px; }
.human-verification__check { display: none; }
.human-verification.is-dragging .human-verification__handle { color: #101925; background: var(--auth-accent); }
.human-verification.is-dragging .human-verification__instruction { opacity: .3; }
.human-verification.is-verifying .human-verification__handle { color: #101925; background: var(--auth-accent); }
.human-verification.is-verified { border-color: rgba(0,192,135,.35); }
.human-verification.is-verified .human-verification__track { border-color: rgba(0,192,135,.42); }
.human-verification.is-verified .human-verification__progress { width: 100%; background: rgba(0,192,135,.16); }
.human-verification.is-verified .human-verification__handle { right: 0; left: auto; color: #071811; border: 0; background: var(--auth-green); transform: none; }
.human-verification.is-verified .human-verification__arrows { display: none; }
.human-verification.is-verified .human-verification__check { display: block; }
.human-verification.is-verified .human-verification__instruction { color: #53dcb1; opacity: 1; }
.human-verification__status { min-height: 15px; margin: 0; color: #77869a; font-size: 10px; line-height: 1.5; }
.human-verification__status.is-error { color: #ff7588; }
.human-verification__status.is-success { color: var(--auth-green); }
[dir="rtl"] .human-verification__instruction { padding-inline: 44px 0; }

.auth-submit { display: flex; min-height: 52px; align-items: center; justify-content: center; gap: 8px; margin-top: 3px; border-radius: 10px; color: #101925; background: var(--auth-accent); font-size: 15px; font-weight: 800; transition: transform 160ms ease, filter 160ms ease; }
.auth-submit:active { transform: scale(.98); filter: brightness(.94); }
.auth-submit svg { width: 19px; height: 19px; stroke-width: 2.2; }
.auth-submit:disabled { color: #778397; background: #233044; cursor: not-allowed; filter: none; }

.auth-switch { margin: 20px 0 0; color: var(--auth-muted); font-size: 12px; text-align: center; }
.auth-switch a { color: var(--auth-accent); font-weight: 800; }
.auth-page--register .auth-card { margin-top: 9px; }
.auth-page--register .auth-heading { margin-bottom: 20px; }

.auth-member-page { min-height: 100dvh; padding-bottom: 0; background: var(--auth-panel); }
.auth-member-shell { width: min(100%, 480px); min-height: 100dvh; padding: 0; background: var(--auth-panel); }
.auth-member-card { min-height: 100dvh; overflow: visible; margin: 0; padding: 0; border: 0; border-radius: 0; background: linear-gradient(180deg, #111b28 0, #0e1824 100%); }
.auth-member-header { display: flex; min-height: calc(66px + env(safe-area-inset-top, 0px)); align-items: center; justify-content: space-between; padding: calc(13px + env(safe-area-inset-top, 0px)) 14px 10px 18px; }
.auth-member-header .auth-brand-mark { width: 35px; height: 35px; }
.auth-member-header .auth-brand strong { font-size: 14px; }
.auth-member-header .auth-language { position: relative; }
.auth-member-close { display: grid; width: 40px; height: 40px; place-items: center; border: 1px solid var(--auth-line); border-radius: 11px; color: #98a6b9; background: #162231; transition: color 150ms ease, border-color 150ms ease, transform 150ms ease; }
.auth-member-close:hover,
.auth-member-close:focus-visible { color: var(--auth-text); border-color: #41536b; outline: 0; }
.auth-member-close:active { transform: scale(.94); }
.auth-member-close svg { width: 20px; height: 20px; stroke-width: 2; }
.auth-tabs { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 4px; margin: 0 18px; padding: 4px; border: 1px solid var(--auth-line); border-radius: 11px; background: #0a111a; }
.auth-tabs button { min-height: 44px; border-radius: 8px; color: #78869a; background: transparent; font-size: 13px; font-weight: 780; transition: color 150ms ease, background 150ms ease; }
.auth-tabs button[aria-selected="true"] { color: #101925; background: var(--auth-accent); box-shadow: 0 4px 14px rgba(242,183,49,.16); }
.auth-tabs button:focus-visible { outline: 2px solid var(--auth-accent); outline-offset: -2px; }
.auth-member-content { padding: 20px 18px 24px; }
.auth-panel[hidden] { display: none; }
.auth-panel-heading { margin-bottom: 20px; }
.auth-panel-heading h2 { margin: 0; font-size: 22px; line-height: 1.3; }
.auth-panel-heading p { margin: 6px 0 0; color: var(--auth-muted); font-size: 11px; line-height: 1.55; }
.auth-member-card .auth-switch button { padding: 0; color: var(--auth-accent); background: transparent; font-size: inherit; font-weight: 800; }

body.auth-verification-open { overflow: hidden; }
.auth-verification-layer { position: fixed; z-index: 120; inset: 0; display: grid; place-items: center; padding: max(16px, env(safe-area-inset-top, 0px)) 14px max(16px, env(safe-area-inset-bottom, 0px)); opacity: 0; transition: opacity 170ms ease; }
.auth-verification-layer[hidden] { display: none; }
.auth-verification-layer.is-open { opacity: 1; }
.auth-verification-backdrop { position: absolute; inset: 0; width: 100%; height: 100%; padding: 0; background: rgba(2, 6, 11, .82); backdrop-filter: blur(5px); }
.auth-verification-dialog { position: relative; width: min(100%, 420px); max-height: calc(100dvh - 32px); overflow-x: hidden; overflow-y: auto; padding: 48px 12px 12px; border: 1px solid #2c3b50; border-radius: 17px; background: #101a27; box-shadow: 0 24px 70px rgba(0, 0, 0, .56); transform: translateY(12px) scale(.985); transition: transform 190ms cubic-bezier(.22,.8,.25,1); }
.auth-verification-layer.is-open .auth-verification-dialog { transform: translateY(0) scale(1); }
.auth-verification-close { position: absolute; z-index: 2; top: 8px; right: 8px; display: grid; width: 36px; height: 36px; place-items: center; border: 1px solid #2b3a4e; border-radius: 10px; color: #9ba8ba; background: #162231; }
.auth-verification-close:hover,
.auth-verification-close:focus-visible { color: var(--auth-text); border-color: #41536b; outline: 0; }
.auth-verification-close svg { width: 18px; height: 18px; stroke-width: 2; }
.auth-verification-dialog .human-verification { padding: 13px; background: #0b121c; }

body.auth-modal-open { overflow: hidden; }
.auth-modal { position: fixed; z-index: 90; inset: 0; inset-block-end: calc(var(--nav-height, 72px) + var(--safe-bottom, env(safe-area-inset-bottom, 0px))); display: grid; align-items: end; justify-items: center; padding: max(12px, env(safe-area-inset-top)) 10px 8px; opacity: 0; transition: opacity 180ms ease; }
.auth-modal[hidden] { display: none; }
.auth-modal.is-open { opacity: 1; }
.auth-modal__backdrop { position: absolute; inset: 0; width: 100%; height: 100%; padding: 0; background: rgba(2,6,11,.78); backdrop-filter: blur(5px); }
.auth-modal__dialog { position: relative; display: flex; width: min(100%, 450px); max-height: min(calc(100% - 40px), 860px); flex-direction: column; overflow: hidden; border: 1px solid #2b3a4e; border-radius: 20px 20px 14px 14px; background: #101a27; box-shadow: 0 24px 70px rgba(0,0,0,.55); transform: translateY(24px); transition: transform 220ms cubic-bezier(.22,.8,.25,1); }
.auth-modal.is-open .auth-modal__dialog { transform: translateY(0); }
.auth-modal__header { display: flex; min-height: 62px; flex: 0 0 auto; align-items: center; justify-content: space-between; padding: 12px 14px 9px 18px; }
.auth-modal__header .auth-brand-mark { width: 34px; height: 34px; }
.auth-modal__header .auth-brand strong { font-size: 14px; }
.auth-modal__close { display: grid; width: 39px; height: 39px; place-items: center; border: 1px solid #2b3a4e; border-radius: 11px; color: #9ba8ba; background: #162231; transition: color 150ms ease, border-color 150ms ease, transform 150ms ease; }
.auth-modal__close:hover,
.auth-modal__close:focus-visible { color: var(--auth-text); border-color: #41536b; outline: 0; }
.auth-modal__close:active { transform: scale(.94); }
.auth-modal__close svg { width: 20px; height: 20px; stroke-width: 2; }
.auth-modal__tabs { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 4px; margin: 0 18px; padding: 4px; border: 1px solid var(--auth-line); border-radius: 11px; background: #0a111a; }
.auth-modal__tabs button { min-height: 43px; border-radius: 8px; color: #78869a; background: transparent; font-size: 13px; font-weight: 780; transition: color 150ms ease, background 150ms ease; }
.auth-modal__tabs button[aria-selected="true"] { color: #101925; background: var(--auth-accent); box-shadow: 0 4px 14px rgba(242,183,49,.16); }
.auth-modal__tabs button:focus-visible { outline: 2px solid var(--auth-accent); outline-offset: -2px; }
.auth-modal__scroll { min-height: 0; overflow-x: hidden; overflow-y: auto; padding: 20px 18px 22px; overscroll-behavior: contain; scrollbar-color: #34445a transparent; }
.auth-modal__scroll > .auth-alert { margin-bottom: 16px; }
.auth-modal-panel[hidden] { display: none; }
.auth-modal-heading { margin-bottom: 20px; }
.auth-modal-heading h2 { margin: 0; font-size: 22px; line-height: 1.3; }
.auth-modal-heading p { margin: 6px 0 0; color: var(--auth-muted); font-size: 11px; line-height: 1.55; }
.auth-modal .auth-switch button { padding: 0; color: var(--auth-accent); background: transparent; font-size: inherit; font-weight: 800; }

@media (min-width: 540px) {
    .auth-modal { align-items: center; padding: 20px; }
    .auth-modal__dialog { border-radius: 18px; }
}

@media (prefers-reduced-motion: reduce) {
    .auth-modal,
    .auth-modal__dialog,
    .auth-verification-layer,
    .auth-verification-dialog { transition: none; }
}

@media (max-width: 374px) {
    .auth-shell:not(.auth-member-shell) { padding-inline: 10px; }
    .auth-card:not(.auth-member-card) { padding-inline: 17px; }
    .auth-code-row { grid-template-columns: minmax(0, 1fr) 102px; }
    .auth-member-content { padding-inline: 15px; }
}

@media (min-width: 720px) {
    .auth-shell:not(.auth-member-shell) { padding-top: 34px; }
}