:root {
    --pa-blue: #00a8e8;
    --pa-blue-deep: #019ad5;
    --pa-blue-soft: rgba(0, 168, 232, 0.14);
    --pa-ink: #131313;
    --pa-muted: #6b7280;
    --pa-line: rgba(19, 19, 19, 0.08);
    --pa-surface: rgba(255, 255, 255, 0.82);
    --pa-danger: #d92d20;
    --pa-radius: 20px;
    --pa-font: 'IBM Plex Sans', 'Segoe UI', system-ui, sans-serif;
    --pa-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

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

.pa-body {
    min-height: 100vh;
    font-family: var(--pa-font);
    color: var(--pa-ink);
    background: #eef6fa;
    overflow-x: hidden;
    display: grid;
    grid-template-rows: auto 1fr auto;
}

/* —— Atmosphere —— */
.pa-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    background:
        radial-gradient(1200px 600px at 10% -10%, rgba(0, 168, 232, 0.22), transparent 55%),
        radial-gradient(900px 500px at 100% 0%, rgba(15, 142, 207, 0.16), transparent 50%),
        linear-gradient(180deg, #f7fbfd 0%, #eef5f9 45%, #f5f5f5 100%);
    pointer-events: none;
}

.pa-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(19, 19, 19, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(19, 19, 19, 0.035) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 75%);
    opacity: 0.7;
}

.pa-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.55;
    animation: pa-float 12s var(--pa-ease) infinite;
}

.pa-orb-a {
    width: 340px;
    height: 340px;
    left: -80px;
    top: 18%;
    background: rgba(0, 168, 232, 0.35);
}

.pa-orb-b {
    width: 280px;
    height: 280px;
    right: -60px;
    top: 8%;
    background: rgba(15, 142, 207, 0.28);
    animation-delay: -4s;
    animation-duration: 15s;
}

.pa-orb-c {
    width: 220px;
    height: 220px;
    left: 40%;
    bottom: 8%;
    background: rgba(0, 168, 232, 0.18);
    animation-delay: -7s;
    animation-duration: 18s;
}

@keyframes pa-float {
    0%,
    100% {
        transform: translate3d(0, 0, 0) scale(1);
    }
    50% {
        transform: translate3d(18px, -28px, 0) scale(1.06);
    }
}

/* —— Chrome —— */
.pa-top,
.pa-main,
.pa-foot {
    position: relative;
    z-index: 1;
}

.pa-top {
    padding: 22px clamp(20px, 4vw, 40px) 0;
}

.pa-brand img {
    display: block;
    height: 40px;
    width: auto;
    max-width: min(220px, 70vw);
    animation: pa-fade-up 0.7s var(--pa-ease) both;
}

.pa-main {
    display: grid;
    place-items: center;
    padding: 24px 16px 40px;
}

.pa-panel {
    width: min(420px, 100%);
    padding: 36px 28px 28px;
    border-radius: var(--pa-radius);
    background: var(--pa-surface);
    border: 1px solid rgba(255, 255, 255, 0.7);
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.8) inset,
        0 20px 50px rgba(19, 19, 19, 0.08),
        0 4px 16px rgba(0, 168, 232, 0.06);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    animation: pa-panel-in 0.75s var(--pa-ease) both;
}

@keyframes pa-panel-in {
    from {
        opacity: 0;
        transform: translateY(28px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes pa-fade-up {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* —— Steps —— */
.pa-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 22px;
}

.pa-step {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #d7e2e8;
    transition:
        background 0.35s var(--pa-ease),
        transform 0.35s var(--pa-ease),
        box-shadow 0.35s var(--pa-ease);
}

.pa-step.is-active {
    background: var(--pa-blue);
    transform: scale(1.15);
    box-shadow: 0 0 0 6px var(--pa-blue-soft);
}

.pa-step.is-done {
    background: var(--pa-blue-deep);
}

.pa-step-line {
    width: 56px;
    height: 2px;
    margin: 0 8px;
    border-radius: 2px;
    background: #d7e2e8;
    position: relative;
    overflow: hidden;
}

.pa-step-line::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--pa-blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.45s var(--pa-ease);
}

.pa-step-line.is-on::after {
    transform: scaleX(1);
}

/* —— Icon —— */
.pa-icon-wrap {
    position: relative;
    width: 72px;
    height: 72px;
    margin: 0 auto 18px;
}

.pa-icon-wrap--lg {
    width: 140px;
    height: 140px;
    margin-bottom: 22px;
}

.pa-icon-ring {
    display: none;
}

.pa-icon {
    width: 72px;
    height: 72px;
    border-radius: 0;
    display: grid;
    place-items: center;
    color: var(--pa-blue);
    background: transparent;
    border: 0;
    box-shadow: none;
}

.pa-icon canvas {
    width: 64px !important;
    height: 64px !important;
}

.pa-orb-host--lg {
    width: 140px;
    height: 140px;
    border-radius: 0;
}

.pa-orb-host--lg canvas {
    /* размер задаёт ThinkingOrbs через data-orb-display */
}

.pa-title {
    margin: 0 0 8px;
    text-align: center;
    font-size: clamp(1.45rem, 4vw, 1.75rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.pa-sub {
    margin: 0 0 26px;
    text-align: center;
    color: var(--pa-muted);
    font-size: 0.95rem;
    line-height: 1.45;
}

.pa-stage {
    position: relative;
    min-height: 190px;
}

.pa-step-view {
    width: 100%;
    animation: pa-step-in 0.45s var(--pa-ease) both;
}

.pa-step-view[hidden] {
    display: none !important;
}

.pa-step-view.is-leaving {
    animation: pa-step-out 0.28s var(--pa-ease) both;
}

@keyframes pa-step-in {
    from {
        opacity: 0;
        transform: translateX(18px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pa-step-out {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(-14px);
    }
}

.pa-label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--pa-muted);
    letter-spacing: 0.02em;
}

.pa-field {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-bottom: 16px;
    border: 1px solid var(--pa-line);
    border-radius: 14px;
    background: #fff;
    transition:
        border-color 0.2s ease,
        box-shadow 0.2s ease;
}

.pa-field:focus-within {
    border-color: rgba(0, 168, 232, 0.65);
    box-shadow: 0 0 0 4px var(--pa-blue-soft);
}

.pa-field-prefix {
    flex: 0 0 auto;
    padding: 0 0 0 14px;
    font-weight: 600;
    color: var(--pa-ink);
    font-variant-numeric: tabular-nums;
}

.pa-input {
    width: 100%;
    border: 0;
    outline: 0;
    background: transparent;
    padding: 14px 14px 14px 8px;
    font: inherit;
    font-size: 1.05rem;
    font-variant-numeric: tabular-nums;
    color: var(--pa-ink);
}

.pa-input::placeholder {
    color: #b0b8c0;
}

.pa-code-wrap {
    position: relative;
    margin-bottom: 16px;
}

.pa-input-code {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0.01;
    border: 0;
    margin: 0;
    padding: 0;
    color: transparent;
    caret-color: transparent;
    background: transparent;
    z-index: 2;
}

.pa-otp {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 8px;
    pointer-events: none;
}

.pa-otp span {
    height: 48px;
    border-radius: 12px;
    border: 1px solid var(--pa-line);
    background: #fff;
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 1.2rem;
    font-variant-numeric: tabular-nums;
    color: var(--pa-ink);
    transition:
        border-color 0.2s ease,
        background 0.2s ease,
        transform 0.2s var(--pa-ease),
        box-shadow 0.2s ease;
}

.pa-otp span.is-filled {
    border-color: rgba(0, 168, 232, 0.55);
    background: #f3faff;
    box-shadow: 0 0 0 3px var(--pa-blue-soft);
    transform: translateY(-1px);
}

.pa-otp span.is-active {
    border-color: var(--pa-blue);
}

.pa-hint {
    margin: 0 0 14px;
    padding: 12px 14px;
    border-radius: 12px;
    background: linear-gradient(90deg, rgba(0, 168, 232, 0.1), rgba(0, 168, 232, 0.04));
    color: #0f5f80;
    font-size: 0.9rem;
    line-height: 1.4;
    animation: pa-fade-up 0.4s var(--pa-ease) both;
}

.pa-btn {
    position: relative;
    width: 100%;
    border: 0;
    border-radius: 14px;
    padding: 15px 18px;
    font: inherit;
    font-weight: 600;
    font-size: 1rem;
    color: #fff;
    cursor: pointer;
    background: linear-gradient(180deg, #12b4ef 0%, var(--pa-blue) 45%, var(--pa-blue-deep) 100%);
    box-shadow: 0 10px 22px rgba(0, 168, 232, 0.28);
    transition:
        transform 0.18s var(--pa-ease),
        box-shadow 0.18s ease,
        filter 0.18s ease;
    overflow: hidden;
}

.pa-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.28) 50%, transparent 70%);
    transform: translateX(-120%);
    transition: transform 0.6s var(--pa-ease);
}

.pa-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 14px 28px rgba(0, 168, 232, 0.34);
    filter: saturate(1.05);
}

.pa-btn:hover:not(:disabled)::after {
    transform: translateX(120%);
}

.pa-btn:active:not(:disabled) {
    transform: translateY(1px);
}

.pa-btn:disabled {
    cursor: wait;
    filter: saturate(0.85);
}

.pa-btn.is-loading .pa-btn-label {
    opacity: 0;
}

.pa-btn-orb {
    position: absolute;
    inset: 0;
    margin: auto;
    width: 20px;
    height: 20px;
    opacity: 0;
    pointer-events: none;
    display: grid;
    place-items: center;
}

.pa-btn.is-loading .pa-btn-orb {
    opacity: 1;
}

.pa-actions {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-top: 14px;
}

.pa-link {
    border: 0;
    background: transparent;
    padding: 6px 0;
    font: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--pa-blue-deep);
    cursor: pointer;
}

.pa-link:hover {
    color: var(--pa-ink);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.pa-error {
    margin-top: 14px;
    padding: 12px 14px;
    border-radius: 12px;
    background: #fff1f0;
    border: 1px solid rgba(217, 45, 32, 0.18);
    color: var(--pa-danger);
    font-size: 0.9rem;
    line-height: 1.35;
    animation: pa-shake 0.4s var(--pa-ease);
}

@keyframes pa-shake {
    0%,
    100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-5px);
    }
    75% {
        transform: translateX(5px);
    }
}

/* —— Success —— */
.pa-success {
    text-align: center;
    padding-top: 18px;
}

.pa-check {
    width: 72px;
    height: 72px;
    margin: 0 auto 16px;
}

.pa-check svg {
    width: 72px;
    height: 72px;
}

.pa-check circle {
    stroke: var(--pa-blue);
    stroke-width: 2;
    stroke-dasharray: 160;
    stroke-dashoffset: 160;
    animation: pa-draw 0.6s var(--pa-ease) forwards;
}

.pa-check path {
    stroke: var(--pa-blue);
    stroke-width: 3.2;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 48;
    stroke-dashoffset: 48;
    animation: pa-draw 0.45s 0.35s var(--pa-ease) forwards;
}

@keyframes pa-draw {
    to {
        stroke-dashoffset: 0;
    }
}

.pa-success-text {
    margin: 0;
    color: var(--pa-muted);
    font-weight: 500;
}

.pa-foot {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    padding: 0 16px 28px;
    color: var(--pa-muted);
    font-size: 0.85rem;
}

.pa-foot a {
    color: inherit;
    text-decoration: none;
}

.pa-foot a:hover {
    color: var(--pa-blue-deep);
}

@media (max-width: 480px) {
    .pa-panel {
        padding: 28px 20px 22px;
        border-radius: 18px;
    }

    .pa-otp span {
        height: 44px;
        font-size: 1.05rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .pa-orb,
    .pa-icon-ring,
    .pa-panel,
    .pa-brand img,
    .pa-step-view,
    .pa-error,
    .pa-btn::after,
    .pa-check circle,
    .pa-check path {
        animation: none !important;
        transition: none !important;
    }

    .pa-check circle,
    .pa-check path {
        stroke-dashoffset: 0;
    }
}