:root {
    --qwui-text: #1b1e24;
    --qwui-muted: #686d77;
    --qwui-dark: #17191f;
    --qwui-light: #ffffff;
    --qwui-surface: rgba(255, 255, 255, 0.9);
    --qwui-border: rgba(255, 255, 255, 0.64);

    --qwui-success: #257242;
    --qwui-error: #9b3030;

    --qwui-radius-small: 12px;
    --qwui-radius-medium: 18px;
    --qwui-radius-large: 28px;

    --qwui-shadow:
        0 24px 75px rgba(12, 15, 22, 0.2);
}


* {
    box-sizing: border-box;
}


html {
    min-height: 100%;
}


body {
    min-height: 100vh;
    margin: 0;

    color: var(--qwui-text);

    font-family:
        Inter,
        ui-sans-serif,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;

    line-height: 1.5;
}


a {
    color: inherit;
}


button,
input,
textarea,
select {
    font: inherit;
}


button,
.button {
    min-height: 48px;
    padding: 12px 18px;

    border: 0;
    border-radius: 14px;

    font-weight: 750;

    cursor: pointer;

    transition:
        transform 0.15s ease,
        box-shadow 0.15s ease,
        opacity 0.15s ease,
        background 0.15s ease;
}


button:hover,
.button:hover {
    transform: translateY(-1px);
}


button:active,
.button:active {
    transform: scale(0.98);
}


button:disabled {
    cursor: not-allowed;
    opacity: 0.55;
}


.primary-button {
    background: var(--qwui-dark);
    color: white;

    box-shadow:
        0 9px 24px rgba(23, 25, 31, 0.2);
}


.secondary-button {
    border: 1px solid rgba(20, 23, 30, 0.1);

    background: rgba(255, 255, 255, 0.82);
    color: var(--qwui-text);
}


.button-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    text-decoration: none;
}


input,
textarea,
select {
    width: 100%;
    min-height: 50px;
    padding: 13px 15px;

    border: 1px solid rgba(23, 25, 31, 0.14);
    border-radius: 14px;

    background: white;
    color: var(--qwui-text);

    outline: none;

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


input:focus,
textarea:focus,
select:focus {
    border-color: var(--qwui-dark);

    box-shadow:
        0 0 0 4px rgba(23, 25, 31, 0.1);
}


.glass-card {
    border: 1px solid var(--qwui-border);
    border-radius: var(--qwui-radius-large);

    background: var(--qwui-surface);

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

    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}


.brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;

    text-decoration: none;
}


.brand-logo {
    display: grid;
    flex: 0 0 44px;
    place-items: center;

    width: 44px;
    height: 44px;

    border-radius: 14px;

    background: var(--qwui-dark);
    color: white;

    font-size: 26px;
    font-weight: 900;
    line-height: 1;

    box-shadow:
        0 8px 22px rgba(23, 25, 31, 0.18);
}


.brand-name {
    font-size: 21px;
    font-weight: 850;
    letter-spacing: -0.03em;
}


.page-message {
    padding: 13px 15px;

    border-radius: 13px;

    line-height: 1.45;
}


.page-message.success {
    border: 1px solid rgba(48, 139, 79, 0.32);

    background: rgba(221, 246, 229, 0.86);
    color: var(--qwui-success);
}


.page-message.error {
    border: 1px solid rgba(172, 53, 53, 0.3);

    background: rgba(255, 232, 232, 0.9);
    color: var(--qwui-error);
}


.sr-only {
    position: absolute;

    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;

    overflow: hidden;
    clip: rect(0, 0, 0, 0);

    white-space: nowrap;

    border: 0;
}
.is-hidden {
    display: none;
}