:root {
    --silca-blue: #0f4f8a;
    --silca-blue-dark: #07355f;
    --silca-blue-soft: #e7f1fb;
    --silca-green: #83b735;
    --silca-green-dark: #62951f;
    --silca-text: #182330;
    --silca-muted: #667085;
    --silca-border: #d8e0ea;
    --silca-danger: #b42318;
    --silca-danger-bg: #fff1f0;
    --silca-card: rgba(255, 255, 255, 0.94);
    --silca-shadow: 0 24px 70px rgba(7, 53, 95, 0.18);
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
}

body.silca-auth-body {
    min-height: 100vh;
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--silca-text);
    background:
        radial-gradient(circle at 14% 18%, rgba(131, 183, 53, 0.20), transparent 30%),
        radial-gradient(circle at 92% 12%, rgba(15, 79, 138, 0.26), transparent 34%),
        linear-gradient(135deg, #f7fbff 0%, #edf6fb 45%, #f7fff1 100%);
}

.silca-auth-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 520px;
    align-items: stretch;
    position: relative;
    overflow: hidden;
}

.silca-auth-shell::before,
.silca-auth-shell::after {
    content: "";
    position: absolute;
    border-radius: 999px;
    pointer-events: none;
    filter: blur(2px);
}

.silca-auth-shell::before {
    width: 420px;
    height: 420px;
    left: -180px;
    bottom: -170px;
    background: rgba(15, 79, 138, 0.10);
}

.silca-auth-shell::after {
    width: 300px;
    height: 300px;
    right: -95px;
    top: 18%;
    background: rgba(131, 183, 53, 0.16);
}

.silca-auth-hero {
    position: relative;
    z-index: 1;
    padding: clamp(32px, 6vw, 84px);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 48px;
}

.silca-logo-card {
    display: inline-flex;
    width: fit-content;
    align-items: center;
    padding: 15px 20px;
    border: 1px solid rgba(15, 79, 138, 0.10);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.78);
    box-shadow: 0 12px 35px rgba(7, 53, 95, 0.08);
    backdrop-filter: blur(10px);
}

.silca-logo-card img {
    display: block;
    width: min(230px, 54vw);
    height: auto;
}

.silca-hero-copy {
    max-width: 650px;
}

.silca-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 18px;
    padding: 8px 13px;
    border-radius: 999px;
    background: var(--silca-blue-soft);
    color: var(--silca-blue-dark);
    font-size: 0.83rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.silca-kicker::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: var(--silca-green);
    box-shadow: 0 0 0 5px rgba(131, 183, 53, 0.18);
}

.silca-hero-title {
    margin: 0;
    color: var(--silca-blue-dark);
    font-size: clamp(2.15rem, 4.4vw, 4.7rem);
    line-height: 0.98;
    letter-spacing: -0.055em;
}

.silca-hero-text {
    max-width: 590px;
    margin: 24px 0 0;
    color: #425466;
    font-size: clamp(1rem, 1.35vw, 1.18rem);
    line-height: 1.7;
}

.silca-feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    max-width: 760px;
}

.silca-feature {
    min-height: 132px;
    padding: 20px;
    border: 1px solid rgba(15, 79, 138, 0.10);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.66);
    box-shadow: 0 12px 36px rgba(7, 53, 95, 0.08);
    backdrop-filter: blur(10px);
}

.silca-feature-icon {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    margin-bottom: 14px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--silca-blue), var(--silca-green));
    color: #fff;
}

.silca-feature strong {
    display: block;
    color: var(--silca-blue-dark);
    font-size: 0.98rem;
}

.silca-feature span {
    display: block;
    margin-top: 6px;
    color: var(--silca-muted);
    font-size: 0.88rem;
    line-height: 1.45;
}

.silca-auth-panel {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 28px;
    background: rgba(255, 255, 255, 0.50);
    border-left: 1px solid rgba(15, 79, 138, 0.10);
    backdrop-filter: blur(18px);
}

.silca-login-card {
    width: min(100%, 420px);
    padding: clamp(26px, 4vw, 40px);
    border: 1px solid rgba(15, 79, 138, 0.12);
    border-radius: 34px;
    background: var(--silca-card);
    box-shadow: var(--silca-shadow);
}

.silca-mobile-logo {
    display: none;
    margin-bottom: 22px;
    text-align: center;
}

.silca-mobile-logo img {
    width: 190px;
    max-width: 72%;
    height: auto;
}

.silca-login-title {
    margin: 0;
    color: var(--silca-blue-dark);
    font-size: 2rem;
    line-height: 1.1;
    letter-spacing: -0.035em;
}

.silca-login-subtitle {
    margin: 12px 0 28px;
    color: var(--silca-muted);
    line-height: 1.55;
}

.silca-alert {
    margin-bottom: 18px;
    padding: 13px 14px;
    border: 1px solid rgba(180, 35, 24, 0.18);
    border-radius: 16px;
    background: var(--silca-danger-bg);
    color: var(--silca-danger);
    font-size: 0.92rem;
    line-height: 1.45;
}

.silca-field {
    margin-bottom: 18px;
}

.silca-field label {
    display: block;
    margin-bottom: 8px;
    color: #344054;
    font-size: 0.94rem;
    font-weight: 700;
}

.silca-input-wrap {
    position: relative;
}

.silca-input-wrap svg {
    position: absolute;
    left: 15px;
    top: 50%;
    width: 20px;
    height: 20px;
    transform: translateY(-50%);
    color: #7a8ca5;
    pointer-events: none;
}

.silca-input {
    width: 100%;
    min-height: 54px;
    padding: 0 48px 0 46px;
    border: 1px solid var(--silca-border);
    border-radius: 18px;
    outline: none;
    background: #fff;
    color: var(--silca-text);
    font: inherit;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.silca-input:focus {
    border-color: var(--silca-blue);
    box-shadow: 0 0 0 5px rgba(15, 79, 138, 0.10);
}

.silca-input.is-invalid {
    border-color: var(--silca-danger);
}

.silca-field-error {
    display: block;
    margin-top: 7px;
    color: var(--silca-danger);
    font-size: 0.84rem;
}

.silca-password-toggle {
    position: absolute;
    top: 50%;
    right: 8px;
    min-width: 40px;
    height: 40px;
    padding: 0 10px;
    border: 0;
    border-radius: 12px;
    transform: translateY(-50%);
    background: transparent;
    color: var(--silca-blue);
    font-weight: 800;
    cursor: pointer;
}

.silca-password-toggle:hover {
    background: var(--silca-blue-soft);
}

.silca-form-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 4px 0 24px;
    color: var(--silca-muted);
    font-size: 0.92rem;
}

.silca-checkbox {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    cursor: pointer;
    user-select: none;
}

.silca-checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--silca-blue);
}

.silca-link {
    color: var(--silca-blue);
    font-weight: 800;
    text-decoration: none;
}

.silca-link:hover {
    text-decoration: underline;
}

.silca-submit {
    display: inline-flex;
    width: 100%;
    min-height: 56px;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: 0;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--silca-blue), var(--silca-blue-dark));
    color: #fff;
    font: inherit;
    font-weight: 900;
    cursor: pointer;
    box-shadow: 0 15px 34px rgba(15, 79, 138, 0.28);
    transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}

.silca-submit:hover {
    transform: translateY(-1px);
    filter: brightness(1.03);
    box-shadow: 0 18px 42px rgba(15, 79, 138, 0.34);
}

.silca-submit:active {
    transform: translateY(0);
}

.silca-login-footer {
    margin: 24px 0 0;
    padding-top: 20px;
    border-top: 1px solid rgba(15, 79, 138, 0.10);
    color: var(--silca-muted);
    font-size: 0.86rem;
    line-height: 1.55;
    text-align: center;
}

@media (max-width: 1080px) {
    .silca-auth-shell {
        grid-template-columns: 1fr;
    }

    .silca-auth-hero {
        padding-bottom: 18px;
        gap: 32px;
    }

    .silca-auth-panel {
        padding: 0 28px 36px;
        border-left: 0;
        background: transparent;
    }

    .silca-feature-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 760px) {
    body.silca-auth-body {
        background: linear-gradient(180deg, #f7fbff 0%, #eef8ff 52%, #f8fff2 100%);
    }

    .silca-auth-hero {
        display: none;
    }

    .silca-auth-panel {
        min-height: 100vh;
        padding: 18px;
    }

    .silca-login-card {
        padding: 24px;
        border-radius: 28px;
    }

    .silca-mobile-logo {
        display: block;
    }

    .silca-login-title,
    .silca-login-subtitle {
        text-align: center;
    }

    .silca-login-title {
        font-size: 1.72rem;
    }

    .silca-form-row {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 390px) {
    .silca-login-card {
        padding: 20px;
    }

    .silca-input {
        min-height: 52px;
    }
}