@font-face {
    font-family: "fangzheng";
    src: url("../font/fangzheng.ttf");
    font-weight: normal;
    font-style: normal;
}

:root {
    /* 🎨 Màu sắc */
    --color-text-primary: #5a2f0d; /* chữ chính (tiêu đề) */
    --color-text-secondary: #9b7c5a; /* chữ phụ */
    --color-text-light: #ffffff; /* chữ trắng */
    --color-input-bg: rgba(0, 0, 0, 0.4);
    --color-input-border: rgba(255, 255, 255, 0.25);
    --color-input-border-focus: #c79a63;
    --color-btn-gradient-1: #b57a30;
    --color-btn-gradient-2: #8d5c1a;
    --color-btn-gradient-hover-1: #d8a14f;
    --color-btn-gradient-hover-2: #b57a30;
    --color-alert-error: #f8d7da;
    --color-alert-success: #a2f2c7;
    --color-alert-warning: #ffe082;

    /* ✨ Font chữ */
    --font-main: "fangzheng";
}

/* Khung hộp */
.box {
    margin-bottom: 25px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 6px;
    transition: 0.3s;
    font-family: var(--font-main);
}

.box:hover {
    background: rgba(255, 255, 255, 0.06);
}

.box-title {
    font-size: 22px;
    font-weight: bold;
    font-family: var(--font-main);
    margin-bottom: 15px;
    color: var(--color-text-primary);
}

/* Form */
.form-group {
    margin-bottom: 18px;
    font-family: var(--font-main);
}

.form-group label {
    font-weight: 600;
    display: block;
    margin-bottom: 8px;
    color: var(--color-text-secondary);
    font-size: 15px;
    font-family: var(--font-main);
}

.form-group select {
    width: 100%;
    padding: 10px 12px;
    border-radius: 6px;
    border: 1px solid var(--color-input-border);
    background: var(--color-input-bg);
    color: var(--color-text-light);
    font-size: 15px;
    font-family: var(--font-main);
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    transition: 0.3s;
}

.form-group select:focus {
    outline: none;
    border-color: var(--color-input-border-focus);
    box-shadow: 0 0 6px rgba(199, 154, 99, 0.6);
}

.form-group option {
    background: #222;
    color: var(--color-text-light);
}

/* Nút */
.btn {
    background: linear-gradient(
        135deg,
        var(--color-btn-gradient-1),
        var(--color-btn-gradient-2)
    );
    color: var(--color-text-light);
    padding: 12px 22px;
    font-weight: bold;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.2s, background 0.3s;
    font-family: var(--font-main);
}

.btn:hover {
    background: linear-gradient(
        135deg,
        var(--color-btn-gradient-hover-1),
        var(--color-btn-gradient-hover-2)
    );
    transform: translateY(-2px);
}

/* Alert */
.alert {
    padding: 10px 0;
    margin-bottom: 12px;
    border: none;
    background: transparent;
    color: var(--color-alert-error);
    font-family: var(--font-main);
}

.alert.success {
    color: var(--color-alert-success);
}

.alert.warning {
    color: var(--color-alert-warning);
}