@import url('https://fonts.loli.net/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --ink: #0b0b0d;
    --ink-2: #111827;
    --muted: #6b7280;
    --muted-2: #9ca3af;
    --paper: #ffffff;
    --paper-2: #f4f5f7;
    --border: rgba(11, 11, 13, 0.18);
    --border-strong: #0b0b0d;
    --shadow: 0 24px 80px rgba(11, 11, 13, 0.20);
    --shadow-soft: 0 18px 46px rgba(11, 11, 13, 0.14);

    --radius-xl: 26px;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 12px;

    --danger-bg: #fee2e2;
    --success-bg: #dcfce7;
    --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    height: 100%;
}

body.auth-body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--ink);
    background: var(--paper-2);
    min-height: 100vh;
    overflow-x: hidden;
    overflow-y: auto;
}

@media (min-width: 980px) and (min-height: 720px) {
    body.auth-body {
        overflow-y: hidden;
    }
}

.auth-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.auth-bg::before,
.auth-bg::after {
    content: "";
    position: absolute;
    width: 520px;
    height: 520px;
    border-radius: 999px;
    border: 2px solid rgba(11, 11, 13, 0.12);
    background: transparent;
    opacity: 0.85;
    will-change: transform;
}

.auth-bg::before {
    left: -260px;
    top: -260px;
    animation: ringA 18s ease-in-out infinite alternate;
}

.auth-bg::after {
    right: -280px;
    bottom: -300px;
    width: 640px;
    height: 640px;
    animation: ringB 22s ease-in-out infinite alternate;
}

.auth-bg__grid {
    position: absolute;
    inset: -2px;
    background-image:
        radial-gradient(circle at 1px 1px, rgba(11, 11, 13, 0.10) 1px, transparent 0);
    background-size: 18px 18px;
    opacity: 0.55;
    mask-image: radial-gradient(900px 520px at 50% 25%, rgba(0, 0, 0, 1), transparent 70%);
    animation: gridDrift 20s linear infinite;
}

.auth-bg__noise {
    display: none;
}

.auth-shell {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: stretch;
    justify-content: stretch;
    padding: 0;
}

.auth-card {
    display: grid;
    grid-template-columns: 1.08fr 0.92fr;
    min-height: 100vh;
    min-height: 100dvh;
    height: 100vh;
    height: 100dvh;
    width: 100%;
    border-radius: 0;
    background: transparent;
    border: none;
    box-shadow: none;
    overflow: hidden;
    animation: cardIn 420ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.auth-card--single {
    grid-template-columns: 1.05fr 1fr;
}

.brand-panel {
    padding: 34px 34px 28px;
    background: var(--ink);
    color: var(--paper);
    border-right: 1px solid rgba(255, 255, 255, 0.10);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.brand-panel::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.10) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.10) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.16;
    pointer-events: none;
    animation: brandGrid 26s linear infinite;
}

.brand-top {
    display: flex;
    align-items: center;
    gap: 14px;
    position: relative;
    z-index: 1;
}

.brand-logo {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--paper);
    padding: 8px;
    border: 1px solid rgba(255, 255, 255, 0.16);
}

.brand-name {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    letter-spacing: -0.02em;
    font-size: 1.25rem;
}

.brand-badge {
    font-size: 0.78rem;
    font-weight: 900;
    color: var(--ink);
    border: 1px solid rgba(0, 0, 0, 0.20);
    background: var(--paper);
    padding: 5px 10px;
    border-radius: 999px;
    animation: badgePulse 2.8s ease-in-out infinite;
}

.brand-title {
    margin-top: 22px;
    font-size: 2.35rem;
    line-height: 1.12;
    letter-spacing: -0.03em;
    font-weight: 900;
    position: relative;
    z-index: 1;
}

.brand-main {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    position: relative;
    z-index: 1;
}

.brand-subtitle {
    margin-top: 14px;
    color: rgba(255, 255, 255, 0.78);
    font-size: 1.02rem;
    line-height: 1.58;
    position: relative;
    z-index: 1;
}

.type-row {
    display: flex;
    align-items: center;
    gap: 10px;
    position: relative;
    z-index: 1;
    flex-wrap: wrap;
}

.type-stack {
    margin-top: 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    position: relative;
    z-index: 1;
}

.type-label {
    font-weight: 900;
    letter-spacing: 0.02em;
    color: rgba(255, 255, 255, 0.86);
}

.type-text {
    font-weight: 900;
    letter-spacing: 0.01em;
    color: rgba(255, 255, 255, 0.96);
}

.type-caret {
    width: 10px;
    height: 18px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.92);
    display: inline-block;
    animation: caretBlink 1.0s steps(2, end) infinite;
}

.pill-row {
    margin-top: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    position: relative;
    z-index: 1;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.84);
    font-weight: 900;
    font-size: 0.85rem;
    letter-spacing: 0.01em;
}

.pill i {
    color: rgba(255, 255, 255, 0.92);
}

.slides-mock {
    position: relative;
    z-index: 1;
    margin-top: 22px;
    height: 170px;
}

.slide-mock {
    position: absolute;
    left: 0;
    right: 0;
    margin: 0 auto;
    width: 78%;
    height: 116px;
    border-radius: 18px;
    background: var(--paper);
    border: 1px solid rgba(11, 11, 13, 0.16);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
    will-change: transform;
}

.slide-mock--1 {
    top: 0;
    animation: float1 6.5s ease-in-out infinite;
}

.slide-mock--2 {
    top: 18px;
    width: 74%;
    opacity: 0.92;
    animation: float2 7.2s ease-in-out infinite;
}

.slide-mock--3 {
    top: 36px;
    width: 70%;
    opacity: 0.84;
    animation: float3 8.0s ease-in-out infinite;
}

.slide-mock__bar {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 18px;
    height: 12px;
    border-radius: 999px;
    background: rgba(11, 11, 13, 0.12);
}

.slide-mock__line {
    position: absolute;
    left: 16px;
    right: 30%;
    top: 44px;
    height: 10px;
    border-radius: 999px;
    background: rgba(11, 11, 13, 0.10);
}

.slide-mock__line--2 {
    right: 42%;
    top: 66px;
}

.brand-visual {
    margin-top: 18px;
    flex: 1;
    min-height: clamp(160px, 26vh, 260px);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.brand-visual::before {
    content: "";
    position: absolute;
    inset: 0;
    margin: auto;
    width: min(520px, 100%);
    height: min(340px, 44vh);
    border-radius: 999px;
    background:
        radial-gradient(circle at 30% 35%, rgba(255, 255, 255, 0.22), transparent 55%),
        radial-gradient(circle at 70% 65%, rgba(255, 255, 255, 0.12), transparent 62%);
    filter: blur(14px);
    opacity: 0.85;
}

.brand-visual__core {
    width: 132px;
    height: 132px;
    border-radius: 34px;
    position: relative;
    background:
        radial-gradient(circle at 30% 28%, rgba(255, 255, 255, 0.36), transparent 60%),
        linear-gradient(160deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.06));
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(8px);
}

.brand-visual__core::before,
.brand-visual__core::after {
    content: "";
    position: absolute;
    inset: 14px;
    border-radius: 28px;
    background:
        linear-gradient(90deg, rgba(255, 255, 255, 0.00), rgba(255, 255, 255, 0.32), rgba(255, 255, 255, 0.00));
    opacity: 0.65;
    transform: translateY(-26px);
    animation: coreScan 3.8s ease-in-out infinite;
}

.brand-visual__core::after {
    inset: 30px;
    opacity: 0.45;
    animation-duration: 4.6s;
}

.brand-visual__ring {
    position: absolute;
    left: 50%;
    top: 50%;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    transform: translate(-50%, -50%);
    opacity: 0.9;
}

.brand-visual__ring--1 {
    width: min(520px, 92%);
    height: min(360px, 48vh);
    animation: ringSpin1 18s linear infinite;
}

.brand-visual__ring--2 {
    width: min(440px, 78%);
    height: min(300px, 40vh);
    opacity: 0.65;
    animation: ringSpin2 24s linear infinite reverse;
}

.brand-visual__ring--3 {
    width: min(360px, 66%);
    height: min(250px, 34vh);
    opacity: 0.45;
    border-style: dashed;
    animation: ringSpin1 28s linear infinite;
}

.brand-visual__orbit {
    position: absolute;
    left: 50%;
    top: 50%;
    border-radius: 999px;
    transform: translate(-50%, -50%);
    animation: orbitSpin 9.5s linear infinite;
}

.brand-visual__orbit--1 {
    width: min(520px, 92%);
    height: min(360px, 48vh);
    animation-duration: 10.5s;
}

.brand-visual__orbit--2 {
    width: min(440px, 78%);
    height: min(300px, 40vh);
    animation-duration: 13.5s;
}

.brand-visual__orbit--3 {
    width: min(360px, 66%);
    height: min(250px, 34vh);
    animation-duration: 16.5s;
    animation-direction: reverse;
}

.brand-visual__dot {
    position: absolute;
    top: -6px;
    left: 50%;
    width: 12px;
    height: 12px;
    border-radius: 999px;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.92);
    box-shadow:
        0 0 0 6px rgba(255, 255, 255, 0.10),
        0 0 22px rgba(255, 255, 255, 0.42);
    animation: dotPulse 1.8s ease-in-out infinite;
}

.brand-footer {
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    color: rgba(255, 255, 255, 0.70);
    font-size: 0.86rem;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    position: relative;
    z-index: 1;
}

.brand-footer span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.form-panel {
    padding: clamp(22px, 4vw, 48px);
    background: var(--paper);
    display: flex;
    min-height: 100vh;
    min-height: 100dvh;
    overflow-y: auto;
    overscroll-behavior: contain;
}

.form-shell {
    width: min(520px, 100%);
    margin: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.auth-tabs {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    padding: 6px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--paper);
    margin-bottom: 16px;
}

.auth-tabs button {
    appearance: none;
    border: none;
    background: transparent;
    color: var(--muted);
    padding: 12px 12px;
    font-weight: 900;
    letter-spacing: 0.02em;
    cursor: pointer;
    border-radius: 999px;
    transition: color var(--transition);
    position: relative;
    z-index: 2;
}

.auth-tabs button[aria-selected="true"] {
    color: var(--paper);
}

.auth-tabs__indicator {
    position: absolute;
    top: 6px;
    bottom: 6px;
    left: 6px;
    width: calc(50% - 3px);
    border-radius: 999px;
    background: var(--ink);
    border: 1px solid rgba(11, 11, 13, 0.12);
    transition: transform 220ms cubic-bezier(0.16, 1, 0.3, 1);
}

.auth-header h2 {
    font-size: 1.55rem;
    font-weight: 900;
    letter-spacing: -0.02em;
}

.auth-header p {
    margin-top: 8px;
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

.panel {
    display: none;
}

.panel.is-active {
    display: block;
    animation: panelIn 240ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.alert-area {
    margin-top: 14px;
}

.alert {
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--paper);
    padding: 12px 12px;
    display: flex;
    gap: 10px;
    align-items: flex-start;
    color: var(--ink);
    font-size: 0.92rem;
    line-height: 1.4;
}

.alert--danger {
    background: var(--danger-bg);
}

.alert--success {
    background: var(--success-bg);
}

.alert i {
    margin-top: 2px;
}

.form {
    margin-top: 16px;
    display: grid;
    gap: 14px;
}

.after-code {
    display: grid;
    gap: 14px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-6px);
    transition: max-height 260ms cubic-bezier(0.16, 1, 0.3, 1), opacity 220ms ease, transform 220ms ease;
}

.after-code.is-open {
    max-height: 980px;
    opacity: 1;
    transform: translateY(0);
}

.field label {
    display: block;
    margin-bottom: 7px;
    color: var(--muted);
    font-weight: 900;
    font-size: 0.83rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.control {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 12px;
    border-radius: 14px;
    background: var(--paper);
    border: 1px solid var(--border);
    transition: transform var(--transition), box-shadow var(--transition);
}

.control:focus-within {
    transform: translateY(-1px);
    box-shadow: 0 0 0 6px rgba(11, 11, 13, 0.06);
}

.control i {
    color: var(--muted-2);
    width: 18px;
    text-align: center;
}

.control input {
    width: 100%;
    border: none;
    outline: none;
    background: transparent;
    color: var(--ink);
    font-size: 1rem;
    font-family: inherit;
}

.control input::placeholder {
    color: var(--muted-2);
}

.toggle {
    border: none;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    padding: 6px;
    border-radius: 10px;
    transition: background var(--transition), color var(--transition);
}

.toggle:hover {
    background: rgba(11, 11, 13, 0.06);
    color: var(--ink);
}

.code-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
    align-items: start;
}

.btn {
    border: 1px solid var(--border);
    cursor: pointer;
    border-radius: 14px;
    padding: 12px 14px;
    font-weight: 900;
    transition: transform var(--transition), background var(--transition), color var(--transition), opacity var(--transition);
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    user-select: none;
    background: var(--paper);
    color: var(--ink);
}

.btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none !important;
}

.btn-primary {
    width: 100%;
    background: var(--ink);
    color: var(--paper);
}

.btn-primary:hover {
    transform: translateY(-1px);
    background: #000000;
}

.btn-secondary:hover {
    transform: translateY(-1px);
    background: rgba(11, 11, 13, 0.06);
}

.links {
    margin-top: 12px;
    display: flex;
    justify-content: space-between;
    gap: 10px;
    color: var(--muted);
    font-size: 0.9rem;
}

.links a {
    color: var(--ink);
    text-decoration: none;
    font-weight: 900;
    transition: opacity var(--transition);
}

.links a:hover {
    opacity: 0.75;
}

.turnstile-wrap {
    margin-top: 6px;
    display: grid;
    justify-content: center;
}

.auth-footer {
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid rgba(11, 11, 13, 0.16);
    color: var(--muted);
    font-size: 0.82rem;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: space-between;
}

.muted {
    color: var(--muted);
}

.locked {
    margin-top: 16px;
    border-radius: 16px;
    border: 1px dashed rgba(11, 11, 13, 0.35);
    background: rgba(11, 11, 13, 0.04);
    padding: 14px;
    color: var(--ink);
}

.locked a {
    color: var(--ink);
    text-decoration: none;
    font-weight: 900;
}

.locked a:hover {
    opacity: 0.75;
}

.brand-panel a {
    color: rgba(255, 255, 255, 0.92);
}

.brand-panel a:hover {
    opacity: 0.8;
}

@media (max-width: 980px) {
    body.auth-body {
        overflow-x: hidden;
        overflow-y: auto;
    }

    .auth-shell {
        min-height: 100vh;
        padding: 0;
    }

    .auth-card {
        grid-template-columns: 1fr;
    }

    .brand-panel {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.10);
    }

    .brand-title {
        font-size: 2.05rem;
    }

    .slides-mock {
        height: 150px;
    }

    .brand-visual {
        min-height: 170px;
        margin-top: 16px;
    }

    .brand-visual__core {
        width: 112px;
        height: 112px;
        border-radius: 30px;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        scroll-behavior: auto !important;
        transition: none !important;
    }

    .auth-bg__grid,
    .auth-bg::before,
    .auth-bg::after,
    .auth-card,
    .panel.is-active,
    .slide-mock--1,
    .slide-mock--2,
    .slide-mock--3,
    .brand-badge,
    .brand-panel::before,
    .brand-visual__ring,
    .brand-visual__orbit,
    .brand-visual__core::before,
    .brand-visual__core::after {
        animation: none !important;
    }
}

@keyframes gridDrift {
    from {
        background-position: 0 0;
    }

    to {
        background-position: 180px 120px;
    }
}

@keyframes cardIn {
    from {
        opacity: 0;
        transform: translateY(16px) scale(0.985);
    }

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

@keyframes panelIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

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

@keyframes float1 {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-6px);
    }
}

@keyframes float2 {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(5px);
    }
}

@keyframes float3 {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-4px);
    }
}

@keyframes badgePulse {

    0%,
    100% {
        transform: translateY(0) scale(1);
    }

    50% {
        transform: translateY(-1px) scale(1.03);
    }
}

@keyframes ringA {
    from {
        transform: translate3d(0, 0, 0) rotate(0deg);
    }

    to {
        transform: translate3d(120px, 110px, 0) rotate(8deg);
    }
}

@keyframes ringB {
    from {
        transform: translate3d(0, 0, 0) rotate(0deg);
    }

    to {
        transform: translate3d(-140px, -120px, 0) rotate(-8deg);
    }
}

@keyframes brandGrid {
    from {
        background-position: 0 0, 0 0;
    }

    to {
        background-position: 120px 80px, 120px 80px;
    }
}

@keyframes caretBlink {

    0%,
    49% {
        opacity: 1;
    }

    50%,
    100% {
        opacity: 0;
    }
}

@keyframes orbitSpin {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

@keyframes ringSpin1 {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

@keyframes ringSpin2 {
    from {
        transform: translate(-50%, -50%) rotate(12deg);
    }

    to {
        transform: translate(-50%, -50%) rotate(372deg);
    }
}

@keyframes dotPulse {

    0%,
    100% {
        transform: translateX(-50%) scale(1);
        opacity: 0.92;
    }

    50% {
        transform: translateX(-50%) scale(1.18);
        opacity: 1;
    }
}

@keyframes coreScan {

    0%,
    100% {
        transform: translateY(-26px);
        opacity: 0.25;
    }

    50% {
        transform: translateY(26px);
        opacity: 0.72;
    }
}

/* Social Login Styles */
.social-login {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
}

.social-login .divider {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--muted);
    font-size: 0.85rem;
    font-weight: 600;
}

.social-login .divider::before,
.social-login .divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border);
}

.social-login .divider span {
    padding: 0 8px;
}

.btn-github {
    width: 100%;
    background: #24292f;
    color: #ffffff;
    border: 1px solid #24292f;
    padding: 14px 16px;
    border-radius: 14px;
    font-weight: 700;
    font-size: 0.95rem;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    cursor: pointer;
    transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}

.btn-github:hover {
    transform: translateY(-2px);
    background: #1c2127;
    box-shadow: 0 4px 12px rgba(36, 41, 47, 0.35);
}

.btn-github:active {
    transform: translateY(0);
}

.btn-github i {
    font-size: 1.15rem;
}

/* Linux Do Button */
.btn-linuxdo {
    width: 100%;
    background: linear-gradient(120deg, #0b0b0d 0%, #0b0b0d 42%, #f7f7f7 60%, #ffce00 100%);
    color: #0b0b0d;
    border: 1px solid #ffce00;
    padding: 14px 16px;
    border-radius: 14px;
    font-weight: 700;
    font-size: 0.95rem;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    cursor: pointer;
    margin-top: 8px;
    transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}

.btn-linuxdo:hover {
    transform: translateY(-2px);
    background: linear-gradient(120deg, #111111 0%, #111111 38%, #ffffff 58%, #ffd500 100%);
    box-shadow: 0 4px 12px rgba(255, 206, 0, 0.4);
}

.btn-linuxdo:active {
    transform: translateY(0);
}

.btn-linuxdo i {
    font-size: 1.15rem;
    color: inherit;
}