* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #312e81 100%);
    padding: 20px;
    position: relative;
    overflow: hidden;
}

/* Декоративные размытые круги на фоне */
body::before, body::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    z-index: 0;
}

body::before {
    background: #6366f1;
    top: -50px;
    left: -50px;
}

body::after {
    background: #a855f7;
    bottom: -50px;
    right: -50px;
}

/* Контейнер карточки входа */
.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    width: 100%;
    max-width: 420px;
    padding: 40px;
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    z-index: 1;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

/* Логотип в шапке */
.brand-logo {
    width: 56px;
    height: 56px;
    background: #4f46e5;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    box-shadow: 0 8px 16px rgba(79, 70, 229, 0.3);
}

.brand-logo svg {
    width: 32px;
    height: 32px;
    fill: #ffffff;
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 8px;
}

.login-subtitle {
    font-size: 0.875rem;
    color: #64748b;
}

/* Форма ввода */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: #334155;
    margin-bottom: 8px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 14px;
    width: 20px;
    height: 20px;
    color: #94a3b8;
    pointer-events: none;
}

.form-input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    font-size: 0.95rem;
    color: #0f172a;
    background: #f8fafc;
    border: 1.5px solid #e2e8f0;
    border-radius: 12px;
    outline: none;
    transition: all 0.2s ease;
}

.form-input:focus {
    background: #ffffff;
    border-color: #6366f1;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
}

/* Переключатель видимости пароля */
.toggle-password {
    position: absolute;
    right: 14px;
    background: none;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toggle-password:hover {
    color: #475569;
}

/* Опции (Запомнить меня / Забыли пароль) */
.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    font-size: 0.875rem;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #475569;
    cursor: pointer;
}

.remember-me input {
    accent-color: #4f46e5;
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.forgot-password {
    color: #4f46e5;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}

.forgot-password:hover {
    color: #4338ca;
    text-decoration: underline;
}

/* Кнопка входа */
.btn-submit {
    width: 100%;
    padding: 14px;
    background: #4f46e5;
    color: #ffffff;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
    transition: all 0.2s ease;
}

.btn-submit:hover {
    background: #4338ca;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
}

.btn-submit:active {
    transform: translateY(0);
}


/* Красный плашка ошибки */
.alert {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: fadeIn 0.3s ease;
}

.alert-danger {
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

.alert-icon { 
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: #dc2626;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}