/**
 * FinchBridge login page — single viewport, no navigation.
 * Colour / spacing tokens: assets/css/variables.css (--signin-* aliases).
 */

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

html {
    height: 100%;
    -webkit-font-smoothing: antialiased;
}

body {
    margin: 0;
    min-height: 100%;
    font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--signin-text);
    background:
        radial-gradient(ellipse 65% 50% at 6% 0%, rgba(99, 102, 241, 0.05) 0%, transparent 55%),
        radial-gradient(ellipse 50% 40% at 98% 8%, rgba(139, 92, 246, 0.04) 0%, transparent 50%),
        var(--signin-bg);
}

/* ---- Page shell ---- */

.signin {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    width: 100%;
    padding: var(--signin-pad);
}

.signin__main {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    width: 100%;
}

.signin__grid {
    display: flex;
    align-items: center;
    gap: var(--signin-gap);
    width: 100%;
    max-width: var(--signin-max);
}

/* ---- Left column (55%) ---- */

.signin__copy {
    position: relative;
    flex: 0 0 55%;
    min-width: 0;
    overflow: hidden;
    isolation: isolate;
}

.signin__hero-art {
    position: absolute;
    z-index: 0;
    top: -8%;
    right: -18%;
    bottom: -12%;
    left: -22%;
    pointer-events: none;
    opacity: 0.15;
}

.signin__hero-art::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(115deg, rgba(99, 102, 241, 0.18) 0%, rgba(248, 250, 252, 0.08) 42%, rgba(248, 250, 252, 0.55) 100%),
        radial-gradient(circle at 68% 42%, rgba(139, 92, 246, 0.12) 0%, transparent 58%);
    mix-blend-mode: multiply;
}

.signin__hero-goldfinch {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: 62% 48%;
    transform-origin: 58% 52%;
    animation: signin-hero-float 8s ease-in-out infinite;
}

.signin__copy-content {
    position: relative;
    z-index: 1;
    max-width: 36rem;
}

@keyframes signin-hero-float {
    0%, 100% {
        transform: translate3d(0, 0, 0) scale(1);
    }

    50% {
        transform: translate3d(0, -14px, 0) scale(1.012);
    }
}

.signin__logo {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    margin-bottom: 1.25rem;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    text-decoration: none;
    color: var(--signin-text);
}

.signin__logo img {
    width: 2.25rem;
    height: 2.25rem;
}

.signin__eyebrow {
    margin: 0 0 0.875rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--signin-primary);
}

.signin__title {
    margin: 0 0 1rem;
    font-size: clamp(1.75rem, 3.2vw, 2.5rem);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.035em;
}

@media (min-width: 992px) {
    .signin__title { font-size: 2.375rem; }
}

.signin__title-accent {
    background: linear-gradient(135deg, var(--signin-primary) 0%, var(--signin-primary-mid) 45%, var(--signin-accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.signin__lead {
    max-width: 520px;
    margin: 0 0 1.25rem;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--signin-muted);
}

.signin__points {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.signin__points li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: #475569;
}

.signin__point-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
}

.signin__point-icon--indigo { background: rgba(79, 70, 229, 0.1); color: var(--signin-primary); }
.signin__point-icon--violet { background: rgba(139, 92, 246, 0.1); color: #7C3AED; }
.signin__point-icon--blue { background: rgba(59, 130, 246, 0.1); color: #2563EB; }

/* ---- Right column (45%) — login card only ---- */

.signin__aside {
    flex: 0 0 45%;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateY(-60px);
}

.signin__card {
    width: 100%;
    max-width: 420px;
    padding: 2rem 2.25rem;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid rgba(255, 255, 255, 0.95);
    border-radius: var(--signin-radius);
    box-shadow: var(--signin-shadow);
}

.signin__card-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    margin: 0 auto 1rem;
    border-radius: 50%;
    background: linear-gradient(145deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.06) 100%);
}

.signin__card-title {
    margin: 0 0 0.25rem;
    font-size: 1.375rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: -0.02em;
}

.signin__card-lead {
    margin: 0 0 1.25rem;
    font-size: 0.875rem;
    text-align: center;
    color: var(--signin-muted);
}

.signin__notice {
    margin-bottom: 0.875rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: var(--signin-radius-input);
}

.signin__notice--ok { color: #059669; background: #ECFDF5; border: 1px solid #A7F3D0; }
.signin__notice--err { color: #DC2626; background: #FEF2F2; border: 1px solid #FECACA; }

.signin__form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.signin__field {
    display: flex;
    flex-direction: column;
    gap: 0.3125rem;
}

.signin__label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: #334155;
}

.signin__input-wrap { position: relative; }

.signin__input-icon {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: #94A3B8;
    pointer-events: none;
}

.signin__input {
    width: 100%;
    min-height: 2.875rem;
    padding: 0.5625rem 0.875rem 0.5625rem 2.5rem;
    font-family: inherit;
    font-size: 0.9375rem;
    color: var(--signin-text);
    background: var(--signin-surface);
    border: 1.5px solid var(--signin-border);
    border-radius: var(--signin-radius-input);
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.signin__input:hover { border-color: #CBD5E1; }

.signin__input:focus {
    outline: none;
    border-color: var(--signin-primary);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
}

.signin__input--invalid { border-color: #DC2626; }

.signin__field-error {
    margin: 0;
    font-size: 0.75rem;
    font-weight: 600;
    color: #DC2626;
}

.signin__options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.signin__remember {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: #475569;
    cursor: pointer;
}

.signin__remember input {
    width: 1rem;
    height: 1rem;
    accent-color: var(--signin-primary);
}

.signin__forgot {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--signin-muted);
    text-decoration: none;
}

.signin__submit {
    width: 100%;
    margin-top: 0.125rem;
    padding: 0.6875rem 1.25rem;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, var(--signin-primary) 0%, var(--signin-accent) 100%);
    border: none;
    border-radius: var(--signin-radius-input);
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.28);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.signin__submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 28px rgba(79, 70, 229, 0.34);
    background: linear-gradient(135deg, #4338CA 0%, #7C3AED 100%);
}

.signin__signup {
    margin: 1rem 0 0;
    text-align: center;
}

.signin__signup a {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--signin-primary);
    text-decoration: none;
}

.signin__signup a:hover { text-decoration: underline; }

/* ---- Minimal footer ---- */

.signin__footer {
    flex-shrink: 0;
    width: 100%;
    max-width: var(--signin-max);
    padding-top: 0.5rem;
    text-align: center;
}

.signin__footer-trust {
    margin: 0 0 0.25rem;
    font-size: 0.6875rem;
    font-weight: 500;
    color: #94A3B8;
    letter-spacing: 0.01em;
}

.signin__footer-copy {
    margin: 0;
    font-size: 0.6875rem;
    color: #CBD5E1;
}

/* ---- Desktop: fit one viewport ---- */

@media (min-width: 1024px) and (min-height: 700px) {
    .signin {
        max-height: 100vh;
        overflow: hidden;
    }
}

/* ---- Responsive ---- */

@media (max-width: 1023px) {
    .signin__grid {
        flex-direction: column;
        align-items: stretch;
        gap: 2.5rem;
    }

    .signin__copy,
    .signin__aside {
        flex: none;
        width: 100%;
    }

    .signin__copy {
        padding-top: 6rem;
    }

    .signin__hero-art {
        top: -2.5rem;
        right: auto;
        bottom: auto;
        left: 50%;
        width: min(92vw, 520px);
        height: 340px;
        transform: translateX(-50%);
        opacity: 0.1;
    }

    .signin__hero-goldfinch {
        object-position: center 40%;
    }

    .signin__copy-content {
        max-width: none;
    }

    .signin__aside {
        transform: none;
    }

    .signin__card {
        max-width: 440px;
        margin-inline: auto;
    }
}

@media (max-width: 520px) {
    .signin {
        padding: 1.5rem;
    }

    .signin__copy {
        padding-top: 5rem;
    }

    .signin__hero-art {
        width: 115%;
        height: 260px;
        opacity: 0.07;
    }

    .signin__card {
        padding: 2rem 1.5rem;
    }

    .signin__options {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (prefers-reduced-motion: reduce) {
    .signin__submit:hover { transform: none; }
    .signin__hero-goldfinch { animation: none; }
}