/* ===== Path: public/assets/css/admin-login.css | Version: 3.0.0 | Status: DRY Refactor | Role: Mobile-First Login UI ===== */
/* Inherits all :root variables from admin-layout-v7.css via <link> in login.php */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body.login-page {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: linear-gradient(135deg, var(--bg-body) 0%, var(--border-color) 100%);
    color: var(--text-dark);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px; /* An toàn cho mobile không bị cấn lề */
}

/* Card Đăng nhập */
.login-wrapper {
    background: var(--bg-card);
    width: 100%;
    max-width: 420px; /* Giới hạn độ rộng trên PC */
    border-radius: 20px;
    box-shadow: var(--shadow-card);
    padding: 40px;
    position: relative;
    overflow: hidden;
}

/* Lớp màu trang trí đỉnh Card */
.login-wrapper::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 5px;
    background: var(--primary);
}

/* Khu vực Logo & Tiêu đề */
.login-header {
    text-align: center;
    margin-bottom: 35px;
}

.login-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 16px;
    margin-bottom: 20px;
}

.login-logo i {
    width: 32px;
    height: 32px;
    stroke-width: 2.5px;
}

.login-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.login-subtitle {
    font-size: 14px;
    color: var(--text-muted);
}

/* Form Groups */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Input có Icon bên trong */
.input-icon-wrapper {
    position: relative;
}

.input-icon-wrapper .input-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    width: 18px;
    height: 18px;
}

.input-icon-wrapper input {
    width: 100%;
    height: 48px; /* Kích thước chuẩn Mobile-First */
    padding: 10px 15px 10px 45px; /* Dịch text sang phải nhường chỗ cho icon */
    font-size: 15px;
    color: var(--text-dark);
    background-color: var(--bg-muted);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    outline: none;
    transition: all 0.2s ease;
}

.input-icon-wrapper input:focus {
    background-color: var(--bg-card);
    border-color: var(--primary);
    box-shadow: var(--shadow-input-focus);
}

.input-icon-wrapper input:focus + .input-icon,
.input-icon-wrapper input:not(:placeholder-shown) ~ .input-icon {
    color: var(--primary);
}

/* Nút Submit 3D */
.btn-submit {
    width: 100%;
    height: 48px; /* Khớp kích thước Input */
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    box-shadow: var(--shadow-btn-primary);
    transition: all 0.2s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 10px;
}

.btn-submit:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.btn-submit:active {
    transform: translateY(0);
    box-shadow: none;
}

/* Hiệu ứng loading khi bấm nút */
.btn-submit.is-loading {
    pointer-events: none;
    opacity: 0.8;
}

/* Thông báo lỗi */
.login-alert {
    background-color: var(--danger-light);
    color: var(--danger);
    border: 1px solid var(--danger-border);
    padding: 12px 15px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
}

.login-alert i {
    width: 16px;
    height: 16px;
    margin-right: 8px;
    flex-shrink: 0;
}

/* Mobile Adjustments */
@media (max-width: 480px) {
    .login-wrapper {
        padding: 30px 20px; /* Thu nhỏ padding trên đt cho thoáng */
    }
    .login-title {
        font-size: 22px;
    }
}