:root {
    --auth-navy: #1e3a5f;
    --auth-blue: #4a90e2;
    --auth-green: #28a745;
    --auth-white: #ffffff;
    --auth-text: #2c3e50;
    --auth-muted: #666666;
    --auth-bg: #f8f9fa;
    --auth-border: #e0e0e0;
    --auth-error-bg: #f8d7da;
    --auth-error-text: #721c24;
    --auth-error-border: #f5c6cb;
    --auth-success-bg: #d4edda;
    --auth-success-text: #155724;
    --auth-success-border: #c3e6cb;
    --auth-info-bg: #e3f2fd;
    --auth-info-border: #2196f3;
}

* {
    box-sizing: border-box;
}

body.auth-page {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: var(--auth-text);
}

.auth-card {
    width: 100%;
    max-width: 540px;
    background: var(--auth-white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.auth-card--wide {
    max-width: 520px;
    padding: 48px;
}

.auth-logo {
    width: 200px;
    display: block;
    margin: 0 auto 30px;
}

.auth-title {
    text-align: center;
    color: var(--auth-navy);
    margin: 0 0 30px;
}

.auth-subtitle {
    text-align: center;
    margin: 0 0 20px;
}

.auth-box {
    padding: 15px;
    margin-bottom: 25px;
    border-left: 4px solid transparent;
    border-radius: 10px;
}

.auth-box--info {
    background: var(--auth-info-bg);
    border-left-color: var(--auth-info-border);
}

.auth-box--verified {
    background: var(--auth-success-bg);
    border-left-color: var(--auth-green);
    color: var(--auth-success-text);
}

.auth-form-group {
    margin-bottom: 20px;
}

.auth-form-group:last-of-type {
    margin-bottom: 0;
}

.auth-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    line-height: 1.35;
}

.auth-field-hint {
    display: block;
    margin-top: 6px;
    color: var(--auth-muted);
    font-size: 0.9rem;
    line-height: 1.4;
}

.auth-input,
.auth-select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--auth-border);
    border-radius: 10px;
    min-height: 52px;
    font: inherit;
    font-size: 1rem;
    line-height: 1.4;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background: var(--auth-white);
    color: var(--auth-text);
}

.auth-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    padding-right: 46px;
    background-image:
        linear-gradient(45deg, transparent 50%, var(--auth-navy) 50%),
        linear-gradient(135deg, var(--auth-navy) 50%, transparent 50%);
    background-position:
        calc(100% - 20px) calc(50% - 3px),
        calc(100% - 14px) calc(50% - 3px);
    background-size: 6px 6px, 6px 6px;
    background-repeat: no-repeat;
}

.auth-input:focus,
.auth-select:focus {
    outline: none;
    border-color: var(--auth-blue);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.auth-help {
    color: var(--auth-muted);
    display: block;
    margin-top: 6px;
}

.auth-visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.auth-link-row {
    text-align: right;
    margin-top: 5px;
}

.auth-link,
.auth-back-link {
    color: var(--auth-blue);
    text-decoration: none;
}

.auth-link:hover,
.auth-back-link:hover {
    text-decoration: underline;
}

.auth-button {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 30px;
    color: var(--auth-white);
    cursor: pointer;
    font-size: 1.05rem;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-top: 20px;
}

.auth-button:hover {
    transform: translateY(-2px);
}

.auth-button--primary {
    background: linear-gradient(135deg, var(--auth-blue), var(--auth-navy));
}

.auth-button--primary:hover {
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.4);
}

.auth-button--success {
    background: var(--auth-green);
}

.auth-button--success:hover {
    box-shadow: 0 8px 25px rgba(40, 167, 69, 0.3);
}

.auth-alert {
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.auth-alert--error {
    background: var(--auth-error-bg);
    color: var(--auth-error-text);
    border: 1px solid var(--auth-error-border);
}

.auth-alert--success {
    background: var(--auth-success-bg);
    color: var(--auth-success-text);
    border: 1px solid var(--auth-success-border);
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--auth-bg);
}

.auth-back {
    text-align: center;
    margin-top: 20px;
}

@media (max-width: 640px) {
    body.auth-page {
        padding: 16px;
    }

    .auth-card,
    .auth-card--wide {
        padding: 28px 22px;
        border-radius: 16px;
    }

    .auth-logo {
        width: 170px;
        margin-bottom: 24px;
    }

    .auth-title {
        margin-bottom: 24px;
        font-size: 2rem;
    }
}