:root {
    --background: #f5f7fa;
    --surface: #ffffff;

    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;

    --border: #e5e7eb;
    --border-strong: #d1d5db;

    --primary: #111827;
    --primary-hover: #1f2937;

    --success-background: #ecfdf5;
    --success-text: #047857;

    --error-background: #fef2f2;
    --error-border: #fecaca;
    --error-text: #b91c1c;

    --neutral-background: #f3f4f6;
    --neutral-text: #374151;

    --radius-small: 10px;
    --radius-medium: 14px;
    --radius-large: 20px;

    --shadow:
        0 14px 45px
        rgba(17, 24, 39, 0.07);
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
}

body {
    margin: 0;

    min-height: 100vh;

    font-family:
        Inter,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        sans-serif;

    background: var(--background);

    color: var(--text-primary);

    -webkit-font-smoothing: antialiased;

    text-rendering: optimizeLegibility;
}

a {
    color: inherit;
}

button,
input {
    font: inherit;
}

.page {
    min-height: 100vh;
}

/* =========================================================
   GENERIC
   ========================================================= */

.button {
    display: inline-flex;

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

    min-height: 46px;

    padding: 11px 18px;

    border: 0;

    border-radius: var(--radius-small);

    text-decoration: none;

    font-size: 14px;

    font-weight: 700;

    cursor: pointer;

    transition:
        background-color 0.15s ease,
        transform 0.15s ease;
}

.button-primary {
    background: var(--primary);

    color: #ffffff;
}

.button-primary:hover {
    background: var(--primary-hover);
}

.button:active {
    transform: translateY(1px);
}

.button:focus-visible {
    outline:
        3px solid
        rgba(17, 24, 39, 0.18);

    outline-offset: 3px;
}

.alert {
    padding: 14px 16px;

    border-radius: 12px;

    font-size: 14px;

    line-height: 1.5;
}

.alert-error {
    border:
        1px solid
        var(--error-border);

    background:
        var(--error-background);

    color:
        var(--error-text);
}

/* =========================================================
   CORE STATUS PAGE
   ========================================================= */

.system-card {
    width: calc(100% - 40px);
    max-width: 660px;

    margin: 60px auto;

    padding: 36px;

    background: var(--surface);

    border:
        1px solid
        var(--border);

    border-radius:
        var(--radius-large);

    box-shadow:
        var(--shadow);
}

.status-badge {
    display: inline-flex;

    align-items: center;

    gap: 8px;

    padding: 8px 12px;

    border-radius: 999px;

    font-size: 14px;

    font-weight: 700;
}

.status-success {
    background:
        var(--success-background);

    color:
        var(--success-text);
}

.status-error {
    background:
        var(--error-background);

    color:
        var(--error-text);
}

.status-neutral {
    background:
        var(--neutral-background);

    color:
        var(--neutral-text);
}

.status-dot {
    width: 8px;
    height: 8px;

    flex-shrink: 0;

    border-radius: 50%;

    background: currentColor;
}

.page-title {
    margin: 22px 0 10px;

    font-size:
        clamp(
            28px,
            5vw,
            36px
        );

    line-height: 1.15;

    letter-spacing: -0.03em;
}

.page-description {
    max-width: 560px;

    margin: 0;

    color:
        var(--text-secondary);

    font-size: 16px;

    line-height: 1.65;
}

.system-information {
    margin-top: 30px;

    padding-top: 22px;

    border-top:
        1px solid
        var(--border);
}

.information-row {
    display: flex;

    align-items: flex-start;
    justify-content: space-between;

    gap: 24px;

    padding: 10px 0;
}

.information-label {
    color:
        var(--text-secondary);

    font-size: 14px;
}

.information-value {
    font-size: 14px;

    font-weight: 650;

    text-align: right;

    word-break: break-word;
}

/* =========================================================
   AUTH
   ========================================================= */

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

    display: flex;

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

    padding: 40px 20px;
}

.auth-card {
    width: 100%;
    max-width: 560px;

    padding: 38px;

    background:
        var(--surface);

    border:
        1px solid
        var(--border);

    border-radius:
        var(--radius-large);

    box-shadow:
        var(--shadow);
}

.auth-heading {
    margin-bottom: 28px;
}

.auth-brand {
    display: inline-block;

    margin-bottom: 26px;

    color:
        var(--text-secondary);

    font-size: 14px;

    font-weight: 700;

    text-decoration: none;
}

.auth-brand:hover {
    color:
        var(--text-primary);
}

.auth-heading h1,
.auth-card-centered h1 {
    margin: 0 0 10px;

    font-size:
        clamp(
            28px,
            5vw,
            36px
        );

    line-height: 1.15;

    letter-spacing: -0.03em;
}

.auth-heading p {
    margin: 0;

    color:
        var(--text-secondary);

    line-height: 1.6;
}

.auth-form {
    margin-top: 24px;
}

.form-grid {
    display: grid;

    grid-template-columns:
        repeat(2, minmax(0, 1fr));

    gap: 16px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;

    margin-bottom: 7px;

    font-size: 14px;

    font-weight: 700;
}

.form-group input {
    width: 100%;

    min-height: 46px;

    padding: 10px 12px;

    border:
        1px solid
        var(--border-strong);

    border-radius:
        var(--radius-small);

    background: #ffffff;

    color:
        var(--text-primary);

    outline: none;

    transition:
        border-color 0.15s ease,
        box-shadow 0.15s ease;
}

.form-group input:hover {
    border-color: #9ca3af;
}

.form-group input:focus {
    border-color:
        var(--primary);

    box-shadow:
        0 0 0 3px
        rgba(17, 24, 39, 0.08);
}

.form-group input.is-invalid {
    border-color:
        #dc2626;
}

.form-group input.is-invalid:focus {
    box-shadow:
        0 0 0 3px
        rgba(220, 38, 38, 0.09);
}

.field-help {
    margin-top: 6px;

    color:
        var(--text-secondary);

    font-size: 12px;
}

.field-error {
    margin-top: 6px;

    color:
        var(--error-text);

    font-size: 13px;

    line-height: 1.4;
}

.consent-list {
    display: grid;

    gap: 12px;

    margin:
        6px 0 22px;
}

.checkbox-row {
    display: flex;

    align-items: flex-start;

    gap: 10px;

    color:
        var(--text-secondary);

    font-size: 13px;

    line-height: 1.55;

    cursor: pointer;
}

.checkbox-row input {
    width: 17px;
    height: 17px;

    flex-shrink: 0;

    margin-top: 2px;
}

.checkbox-row a {
    color:
        var(--text-primary);

    font-weight: 650;
}

.auth-submit {
    width: 100%;
}

.auth-footer {
    margin-top: 24px;

    padding-top: 22px;

    border-top:
        1px solid
        var(--border);

    color:
        var(--text-secondary);

    font-size: 13px;

    text-align: center;
}

.auth-footer span {
    color:
        var(--text-muted);
}

/* =========================================================
   REGISTRATION SUCCESS
   ========================================================= */

.auth-card-centered {
    text-align: center;
}

.success-icon {
    width: 58px;
    height: 58px;

    display: flex;

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

    margin:
        0 auto 24px;

    border-radius: 50%;

    background:
        var(--success-background);

    color:
        var(--success-text);

    font-size: 26px;

    font-weight: 800;
}

.success-text {
    margin:
        0 auto 16px;

    max-width: 440px;

    color:
        var(--text-secondary);

    line-height: 1.65;
}

.auth-card-centered .button {
    margin-top: 12px;
}

/* =========================================================
   LEGAL
   ========================================================= */

.document-page {
    width: calc(100% - 40px);
    max-width: 780px;

    margin: 50px auto;
}

.document-back {
    display: inline-block;

    margin-bottom: 18px;

    color:
        var(--text-secondary);

    font-size: 14px;

    text-decoration: none;
}

.document-card {
    padding: 38px;

    background:
        var(--surface);

    border:
        1px solid
        var(--border);

    border-radius:
        var(--radius-large);

    box-shadow:
        var(--shadow);
}

.document-card h1 {
    margin: 14px 0 20px;

    font-size:
        clamp(
            28px,
            5vw,
            38px
        );

    letter-spacing: -0.03em;
}

.document-card p {
    color:
        var(--text-secondary);

    font-size: 16px;

    line-height: 1.7;
}

.document-draft {
    display: inline-flex;

    padding: 7px 10px;

    border-radius: 999px;

    background:
        #fff7ed;

    color:
        #9a3412;

    font-size: 12px;

    font-weight: 700;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (
    max-width: 600px
) {
    .auth-shell {
        align-items: flex-start;

        padding: 14px;
    }

    .auth-card {
        padding: 26px 22px;

        border-radius:
            var(--radius-medium);
    }

    .auth-brand {
        margin-bottom: 22px;
    }

    .form-grid {
        grid-template-columns: 1fr;

        gap: 0;
    }

    .system-card {
        width:
            calc(100% - 28px);

        margin: 18px auto;

        padding: 26px 22px;

        border-radius:
            var(--radius-medium);
    }

    .information-row {
        flex-direction: column;

        gap: 4px;
    }

    .information-value {
        text-align: left;
    }

    .document-page {
        width:
            calc(100% - 28px);

        margin: 18px auto;
    }

    .document-card {
        padding: 26px 22px;

        border-radius:
            var(--radius-medium);
    }
}