* {
    box-sizing: border-box;
}

:root {
    --bg: #f7f8fc;
    --bg-2: #ffffff;
    --line: #e7eaf3;
    --line-2: #d8dfec;
    --text: #101521;
    --text-soft: #5c667d;
    --text-fade: #8a94aa;

    --primary: #125dff;
    --primary-2: #5a8dff;
    --accent: #7ce7ff;
    --danger-bg: #fff1f3;
    --danger-bd: #ffd7df;
    --danger-tx: #b3304b;
    --success-bg: #eefcf4;
    --success-bd: #cdeedb;
    --success-tx: #1e7e4f;

    --shadow-soft: 0 20px 50px rgba(20, 35, 90, 0.08);
    --shadow-panel: 0 30px 80px rgba(20, 35, 90, 0.10);

    --radius-xl: 34px;
    --radius-lg: 24px;
    --radius-md: 18px;
    --radius-sm: 14px;
}

html[data-theme="dark"] {
    --bg: #0b0f17;
    --bg-2: #101722;
    --line: rgba(255,255,255,0.08);
    --line-2: rgba(255,255,255,0.12);
    --text: #f4f7ff;
    --text-soft: rgba(233, 238, 249, 0.72);
    --text-fade: rgba(210, 219, 236, 0.45);

    --danger-bg: rgba(255, 80, 110, 0.10);
    --danger-bd: rgba(255, 80, 110, 0.18);
    --danger-tx: #ffb2c1;
    --success-bg: rgba(50, 210, 120, 0.10);
    --success-bd: rgba(50, 210, 120, 0.18);
    --success-tx: #aef0ca;

    --shadow-soft: 0 20px 50px rgba(0, 0, 0, 0.28);
    --shadow-panel: 0 30px 80px rgba(0, 0, 0, 0.45);
}

html, body {
    margin: 0;
    padding: 0;
    min-height: 100%;
    background:
        radial-gradient(circle at 10% 15%, rgba(18,93,255,0.06), transparent 24%),
        radial-gradient(circle at 85% 20%, rgba(124,231,255,0.07), transparent 18%),
        linear-gradient(135deg, var(--bg) 0%, #f3f5fb 100%);
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

html[data-theme="dark"] body {
    background:
        radial-gradient(circle at 10% 15%, rgba(18,93,255,0.14), transparent 24%),
        radial-gradient(circle at 85% 20%, rgba(124,231,255,0.08), transparent 18%),
        linear-gradient(135deg, #090c13 0%, #111827 100%);
}

.hidden {
    display: none !important;
}

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

/* no extension */

.ext-screen {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 28px;
}

.ext-screen__inner {
    width: 100%;
    max-width: 860px;
    display: grid;
    gap: 26px;
}

.ext-screen__brand {
    display: flex;
    justify-content: center;
}

.brand-logo {
    max-height: 72px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 6px 18px rgba(0,0,0,0.08));
}

html[data-theme="dark"] .brand-logo {
    filter: drop-shadow(0 6px 18px rgba(0,0,0,0.35));
}

.ext-screen__card {
    background: rgba(255,255,255,0.82);
    backdrop-filter: blur(10px);
    border: 1px solid var(--line);
    border-radius: 34px;
    box-shadow: var(--shadow-panel);
    padding: 42px;
    text-align: center;
}

html[data-theme="dark"] .ext-screen__card,
html[data-theme="dark"] .login-panel,
html[data-theme="dark"] .login-decor__card {
    background: rgba(16, 23, 34, 0.82);
}

.ext-screen__eyebrow {
    display: inline-flex;
    min-height: 38px;
    align-items: center;
    justify-content: center;
    padding: 0 14px;
    border-radius: 999px;
    background: rgba(18,93,255,0.08);
    color: var(--primary);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .16em;
    text-transform: uppercase;
}

.ext-screen__card h1 {
    margin: 22px 0 14px;
    font-size: 52px;
    line-height: 1;
    letter-spacing: -0.06em;
    font-weight: 900;
}

.ext-screen__card p {
    margin: 0 auto;
    max-width: 620px;
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-soft);
}

.ext-screen__note {
    margin: 24px auto 0;
    max-width: 560px;
    padding: 16px 18px;
    border-radius: 18px;
    background: rgba(18,93,255,0.04);
    border: 1px solid var(--line);
    color: var(--text-soft);
    font-size: 15px;
    line-height: 1.7;
}

.ext-screen__actions {
    margin-top: 28px;
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

/* login */

.login-screen {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 30px;
}

.login-screen__art {
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(18,93,255,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(18,93,255,0.025) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: radial-gradient(circle at center, black 24%, transparent 86%);
}

.login-wrap {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1240px;
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 30px;
    align-items: center;
}

.login-left {
    padding: 20px 8px;
}

.login-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
}

.login-brand__label {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-soft);
}

.login-left h1 {
    margin: 0;
    max-width: 620px;
    font-size: 72px;
    line-height: .94;
    letter-spacing: -0.07em;
    font-weight: 900;
}

.login-left h1 span {
    display: block;
    color: var(--primary);
}

.login-left p {
    margin: 24px 0 0;
    max-width: 560px;
    font-size: 18px;
    line-height: 1.9;
    color: var(--text-soft);
}

.login-decor {
    margin-top: 34px;
    position: relative;
    height: 180px;
}

.login-decor__card {
    position: absolute;
    border-radius: 30px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-soft);
    background: rgba(255,255,255,0.72);
    backdrop-filter: blur(10px);
}

.login-decor__card--one {
    width: 230px;
    height: 140px;
    left: 0;
    top: 0;
    transform: rotate(-8deg);
}

.login-decor__card--two {
    width: 290px;
    height: 160px;
    left: 120px;
    top: 18px;
    transform: rotate(7deg);
    background:
        linear-gradient(135deg, rgba(18,93,255,0.10), rgba(124,231,255,0.10)),
        rgba(255,255,255,0.76);
}

.login-right {
    display: flex;
    justify-content: center;
}

.login-panel {
    width: 100%;
    max-width: 500px;
    padding: 30px;
    border-radius: 34px;
    border: 1px solid var(--line);
    background: rgba(255,255,255,0.84);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-panel);
}

.login-panel__title {
    font-size: 34px;
    font-weight: 900;
    letter-spacing: -0.04em;
}

.login-panel__subtitle {
    margin-top: 8px;
    color: var(--text-soft);
    font-size: 15px;
}

.flash {
    margin-top: 18px;
    padding: 14px 16px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.7;
}

.flash--error {
    background: var(--danger-bg);
    border: 1px solid var(--danger-bd);
    color: var(--danger-tx);
}

.flash--success {
    background: var(--success-bg);
    border: 1px solid var(--success-bd);
    color: var(--success-tx);
}

.login-form {
    margin-top: 22px;
    display: grid;
    gap: 18px;
}

.field {
    display: grid;
    gap: 8px;
}

.field label {
    font-size: 13px;
    font-weight: 700;
    color: var(--text);
}

.field input {
    width: 100%;
    height: 58px;
    border-radius: 18px;
    border: 1px solid var(--line-2);
    background: rgba(255,255,255,0.72);
    color: var(--text);
    padding: 0 16px;
    outline: none;
    transition: .2s ease;
}

html[data-theme="dark"] .field input {
    background: rgba(255,255,255,0.03);
}

.field input:focus {
    border-color: rgba(18,93,255,0.45);
    box-shadow: 0 0 0 4px rgba(18,93,255,0.08);
}

.submit-btn,
.fido-btn,
.btn {
    min-height: 56px;
    border-radius: 18px;
    padding: 0 22px;
    border: none;
    text-decoration: none;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    font-weight: 800;
    font-size: 15px;
    transition: .2s ease;
}

.submit-btn,
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    color: #fff;
    box-shadow: 0 16px 32px rgba(18,93,255,0.18);
}

.btn-secondary,
.fido-btn {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--line-2);
}

.submit-btn:hover,
.fido-btn:hover,
.btn:hover {
    transform: translateY(-1px);
}

.fido-box {
    margin-top: 22px;
    padding: 18px;
    border-radius: 20px;
    border: 1px solid var(--line);
    background: rgba(18,93,255,0.03);
}

.fido-box__head h3 {
    margin: 0 0 6px;
    font-size: 18px;
}

.fido-box__head p {
    margin: 0 0 14px;
    color: var(--text-soft);
    font-size: 14px;
    line-height: 1.7;
}

.fido-status {
    margin-top: 10px;
    min-height: 20px;
    color: var(--text-soft);
    font-size: 14px;
}

.fido-status.success {
    color: var(--success-tx);
}

.fido-status.error {
    color: var(--danger-tx);
}

@media (max-width: 980px) {
    .login-wrap {
        grid-template-columns: 1fr;
    }

    .login-left {
        text-align: center;
        padding: 0;
    }

    .login-brand {
        justify-content: center;
    }

    .login-left h1,
    .login-left p {
        margin-left: auto;
        margin-right: auto;
    }

    .login-decor {
        display: none;
    }
}

@media (max-width: 680px) {
    .login-screen,
    .ext-screen {
        padding: 18px;
    }

    .login-panel,
    .ext-screen__card {
        padding: 22px;
        border-radius: 24px;
    }

    .login-left h1 {
        font-size: 46px;
    }

    .ext-screen__card h1 {
        font-size: 36px;
    }

    .ext-screen__actions {
        flex-direction: column;
    }

    .btn,
    .submit-btn,
    .fido-btn {
        width: 100%;
    }
}

.password-field {
    position: relative;
}

.password-field input {
    padding-right: 100px;
}

.login-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.remember-check {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text-soft);
    font-size: 14px;
    cursor: pointer;
}

.remember-check input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.forgot-link,
.single-links a {
    color: var(--primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
}

.forgot-link:hover,
.single-links a:hover {
    text-decoration: underline;
}

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

.single-screen {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.single-card {
    width: 100%;
    max-width: 520px;
    padding: 30px;
    border-radius: 30px;
    border: 1px solid var(--line);
    background: rgba(255,255,255,0.84);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-panel);
}

html[data-theme="dark"] .single-card {
    background: rgba(16, 23, 34, 0.82);
}

.single-brand {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.single-head h1 {
    margin: 0;
    font-size: 38px;
    line-height: 1.02;
    letter-spacing: -0.05em;
}

.single-head p {
    margin: 12px 0 0;
    color: var(--text-soft);
    line-height: 1.8;
    font-size: 15px;
}

.single-links {
    margin-top: 18px;
    text-align: center;
}

.password-toggle {
    position: absolute;
    top: 50%;
    right: 10px;
    transform: translateY(-50%);

    width: 44px;
    height: 44px;

    border-radius: 12px;
    border: 1px solid var(--line);

    background: rgba(255,255,255,0.9);
    color: var(--text);

    display: flex;
    align-items: center;
    justify-content: center;

    cursor: pointer;
    transition: all .2s ease;
}

html[data-theme="dark"] .password-toggle {
    background: rgba(255,255,255,0.05);
}

.password-toggle:hover {
    transform: translateY(-50%) scale(1.05);
    border-color: rgba(18,93,255,0.4);
}

.password-toggle svg {
    width: 20px;
    height: 20px;
}

/* stato iniziale */
.icon-eye-off {
    display: none;
}

.reset-invalid-box {
    margin-top: 18px;
    padding: 18px;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: rgba(18, 93, 255, 0.03);
}

.reset-invalid-box p {
    margin: 0;
    color: var(--text-soft);
    line-height: 1.8;
    font-size: 15px;
}

.single-links--stack {
    margin-top: 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.single-links--stack .btn {
    width: 100%;
}