:root {
    --color-primary: #113B7A;
    --color-secondary: #1D5FD1;
    --btn-gradient: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
    --card-bg: #10233F;
    --text-main: #F3F8FF;
    --text-secondary: #AFC4E8;
    --border-color: #244D84;
    --glow-color: #4FA8FF;
    --gold-color: #F2C14E;
    --divider-color: #1B3357;
    --deep-navy: #08162B;
}

.page-khuyen-mai {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-main);
    background-color: transparent;
}

.page-khuyen-mai__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 15px;
    box-sizing: border-box;
}

.page-khuyen-mai__hero-section {
    position: relative;
    padding-top: 10px;
    background-color: var(--deep-navy);
    overflow: hidden;
}

.page-khuyen-mai__hero-image {
    width: 100%;
    height: auto;
    display: block;
    position: relative;
}

.page-khuyen-mai__hero-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    aspect-ratio: 16 / 9;
}

.page-khuyen-mai__hero-content {
    padding: 40px 15px;
    text-align: center;
    color: var(--text-main);
    max-width: 900px;
    margin: 0 auto;
}

.page-khuyen-mai__main-title {
    font-size: clamp(2.2em, 4vw, 3.5em);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--gold-color);
    text-shadow: 0 0 10px rgba(242, 193, 78, 0.5);
}

.page-khuyen-mai__hero-description {
    font-size: clamp(1em, 1.5vw, 1.2em);
    margin-bottom: 30px;
    color: var(--text-secondary);
}

.page-khuyen-mai__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1em;
    transition: all 0.3s ease;
    cursor: pointer;
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
    text-align: center;
}

.page-khuyen-mai__btn-primary {
    background: var(--btn-gradient);
    color: var(--text-main);
    border: 2px solid var(--glow-color);
    box-shadow: 0 0 15px rgba(79, 168, 255, 0.4);
}

.page-khuyen-mai__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 25px rgba(79, 168, 255, 0.7);
}

.page-khuyen-mai__btn-secondary {
    background: transparent;
    color: var(--gold-color);
    border: 2px solid var(--gold-color);
    box-shadow: 0 0 10px rgba(242, 193, 78, 0.3);
}