.auth-page {
    width: 100%;
    min-height: calc(100vh - 68px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}
.auth-box {
    width: 100%;
    max-width: 440px;
    padding: 34px;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 18px;
    box-shadow: 0 12px 35px rgba(15, 23, 42, .08);
}
.auth-title {
    margin: 0;
    color: #111827;
    font-size: 28px;
    font-weight: 700;
    text-align: center;
}
.auth-subtitle {
    margin: 8px 0 28px;
    color: #6b7280;
    font-size: 14px;
    text-align: center;
}
.auth-error {
    margin-bottom: 20px;
    padding: 12px 14px;
    color: #991b1b;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 10px;
    font-size: 14px;
    line-height: 1.5;
    word-break: break-word;
}
.auth-form-group {
    margin-bottom: 18px;
}
.auth-form-group label {
    display: block;
    margin-bottom: 7px;
    color: #374151;
    font-size: 14px;
    font-weight: 600;
}
.auth-form-group input {
    width: 100%;
    height: 46px;
    padding: 0 13px;
    color: #111827;
    background: #ffffff;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    outline: none;
    font-size: 15px;
    transition: border-color .2s, box-shadow .2s, background .2s, color .2s;
}
.auth-form-group input::placeholder {
    color: #9ca3af;
}
.auth-form-group input:focus {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .10);
}
.auth-submit {
    width: 100%;
    height: 46px;
    margin-top: 5px;
    border: 0;
    border-radius: 10px;
    color: #ffffff;
    background: #2563eb;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background .2s, transform .2s, box-shadow .2s;
}
.auth-submit:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
}
.auth-submit:active {
    transform: translateY(0);
}
.auth-footer {
    margin-top: 22px;
    color: #6b7280;
    font-size: 14px;
    text-align: center;
}
.auth-footer a {
    color: #2563eb;
    font-weight: 600;
    text-decoration: none;
}
.auth-footer a:hover {
    text-decoration: underline;
}
/* =========================================================
   Dark Mode
   ========================================================= */
body.dark-mode .auth-page {
    color: #e5e7eb;
}
body.dark-mode .auth-box {
    background: #151a23;
    border-color: #2a3140;
    box-shadow: 0 12px 35px rgba(0, 0, 0, .25);
}
body.dark-mode .auth-title {
    color: #f3f4f6;
}
body.dark-mode .auth-subtitle {
    color: #9ca3af;
}
body.dark-mode .auth-error {
    color: #fca5a5;
    background: #2a1518;
    border-color: #5b252b;
}
body.dark-mode .auth-form-group label {
    color: #d1d5db;
}
body.dark-mode .auth-form-group input {
    color: #f3f4f6;
    background: #0f141c;
    border-color: #303846;
}
body.dark-mode .auth-form-group input::placeholder {
    color: #6b7280;
}
body.dark-mode .auth-form-group input:focus {
    border-color: #3b82f6;
    background: #111827;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, .16);
}
body.dark-mode .auth-footer {
    color: #9ca3af;
}
body.dark-mode .auth-footer a {
    color: #60a5fa;
}
body.dark-mode .auth-submit {
    background: #2563eb;
    box-shadow: 0 4px 12px rgba(37, 99, 235, .18);
}
body.dark-mode .auth-submit:hover {
    background: #3b82f6;
}
/* =========================================================
   Mobile
   ========================================================= */
@media (max-width: 768px) {
    .auth-page {
        min-height: calc(100vh - 60px);
        padding: 25px 15px;
    }
    .auth-box {
        padding: 26px 20px;
        border-radius: 16px;
    }
    .auth-title {
        font-size: 25px;
    }
}
@media (max-width: 420px) {
    .auth-page {
        padding: 20px 12px;
    }
    .auth-box {
        padding: 24px 17px;
    }
    .auth-title {
        font-size: 24px;
    }
    .auth-form-group input,
    .auth-submit {
        height: 45px;
    }
}