/* style/about.css */

/* Biến màu sắc */
:root {
    --page-about-primary-color: #0A192F;
    --page-about-accent-color: #FFD700;
    --page-about-text-light: #F0F0F0; /* Màu chữ sáng cho nền tối */
    --page-about-text-dark: #333333; /* Màu chữ tối cho nền sáng */
    --page-about-bg-light: #FFFFFF; /* Nền sáng */
    --page-about-bg-dark: #1A2E4C; /* Nền tối */
    --page-about-border-color: #3C4B64;
}

.page-about {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--page-about-text-dark);
    background-color: var(--page-about-bg-light);
}

.page-about__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.page-about__hero {
    background: linear-gradient(135deg, var(--page-about-primary-color) 0%, #1a3a60 100%); /* Màu chủ đạo và biến thể đậm */
    color: var(--page-about-text-light);
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-about__hero::before {
    content: '';
    position: absolute;
    top: -50px;
    left: -50px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255,215,0,0.2) 0%, rgba(255,215,0,0) 70%);
    animation: page-about-hero-animate-top-left 10s infinite alternate;
}

.page-about__hero::after {
    content: '';
    position: absolute;
    bottom: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255,215,0,0.2) 0%, rgba(255,215,0,0) 70%);
    animation: page-about-hero-animate-bottom-right 10s infinite alternate-reverse;
}

@keyframes page-about-hero-animate-top-left {
    0% { transform: translate(0, 0); opacity: 0.8; }
    100% { transform: translate(100px, 100px); opacity: 0.5; }
}

@keyframes page-about-hero-animate-bottom-right {
    0% { transform: translate(0, 0); opacity: 0.8; }
    100% { transform: translate(-100px, -100px); opacity: 0.5; }
}

.page-about__hero-title {
    font-size: 2.8em;
    margin-bottom: 20px;
    font-weight: bold;
    color: var(--page-about-accent-color);
}

.page-about__hero-description {
    font-size: 1.2em;
    max-width: 800px;
    margin: 0 auto 40px;
}

.page-about__section {
    padding: 60px 0;
}

.page-about__section:nth-of-type(even) {
    background-color: var(--page-about-bg-dark);
    color: var(--page-about-text-light);
}

.page-about__section-title {
    font-size: 2.2em;
    color: var(--page-about-primary-color);
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.page-about__section:nth-of-type(even) .page-about__section-title {
    color: var(--page-about-accent-color);
}

.page-about__section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background-color: var(--page-about-accent-color);
    margin: 10px auto 0;
    border-radius: 2px;
}

.page-about__section:nth-of-type(even) .page-about__section-title::after {
    background-color: var(--page-about-primary-color);
}

.page-about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.page-about__grid--reverse {
    grid-template-areas: "image content";
}

.page-about__grid--reverse .page-about__content-block {
    grid-area: content;
}

.page-about__grid--reverse .page-about__image-block {
    grid-area: image;
}

.page-about__content-block p {
    font-size: 1.1em;
    margin-bottom: 15px;
}

.page-about__image-block {
    text-align: center;
}

.page-about__image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.page-about__values {
    background-color: var(--page-about-bg-light);
}

.page-about__values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-about__value-card {
    background-color: var(--page-about-bg-dark);
    color: var(--page-about-text-light);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about__value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.25);
}

.page-about__value-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 5px var(--page-about-accent-color));
}

.page-about__value-title {
    font-size: 1.5em;
    color: var(--page-about-accent-color);
    margin-bottom: 15px;
}

.page-about__value-card p {
    font-size: 1em;
    color: #CCCCCC;
}

.page-about__cta-banner {
    background: var(--page-about-accent-color);
    color: var(--page-about-primary-color);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-about__cta-banner::before {
    content: '';
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    background: url('[GALLERY:bg:gold,abstract,pattern]') no-repeat center center/cover;
    opacity: 0.1;
    z-index: 0;
}

.page-about__cta-banner > * {
    position: relative;
    z-index: 1;
}

.page-about__cta-title {
    font-size: 2.5em;
    margin-bottom: 20px;
    color: var(--page-about-primary-color);
}

.page-about__cta-description {
    font-size: 1.2em;
    max-width: 700px;
    margin: 0 auto 40px;
    color: #555;
}

/* Buttons */
.page-about__btn {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    transition: all 0.3s ease;
    margin: 0 10px;
    cursor: pointer;
    border: 2px solid transparent;
}

.page-about__btn--primary {
    background-color: var(--page-about-accent-color);
    color: var(--page-about-primary-color);
    border-color: var(--page-about-accent-color);
}

.page-about__btn--primary:hover {
    background-color: #e6c200;
    border-color: #e6c200;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.page-about__btn--secondary {
    background-color: var(--page-about-primary-color);
    color: var(--page-about-accent-color);
    border-color: var(--page-about-primary-color);
}

.page-about__btn--secondary:hover {
    background-color: #1a2e4c;
    border-color: #1a2e4c;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.page-about__btn--outline {
    background-color: transparent;
    color: var(--page-about-primary-color);
    border-color: var(--page-about-primary-color);
}

.page-about__btn--outline:hover {
    background-color: var(--page-about-primary-color);
    color: var(--page-about-accent-color);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Responsive Design */
@media (max-width: 992px) {
    .page-about__grid {
        grid-template-columns: 1fr;
    }

    .page-about__grid--reverse {
        grid-template-areas: unset;
    }

    .page-about__hero-title {
        font-size: 2.2em;
    }

    .page-about__section-title {
        font-size: 1.8em;
    }

    .page-about__cta-title {
        font-size: 2em;
    }

    .page-about__image-block {
        order: -1; /* Đẩy ảnh lên trên nội dung trên mobile */
        margin-bottom: 30px;
    }

    .page-about__values-grid {
        grid-template-columns: 1fr;
    }

    .page-about__btn {
        margin: 10px 5px;
        padding: 12px 25px;
        font-size: 1em;
    }
}

@media (max-width: 768px) {
    .page-about__hero {
        padding: 80px 0;
    }

    .page-about__hero-title {
        font-size: 2em;
    }

    .page-about__hero-description,
    .page-about__cta-description {
        font-size: 1em;
    }

    .page-about__section {
        padding: 40px 0;
    }

    .page-about__section-title {
        font-size: 1.6em;
    }

    .page-about__cta-title {
        font-size: 1.8em;
    }
}

@media (max-width: 480px) {
    .page-about__hero {
        padding: 60px 0;
    }

    .page-about__hero-title {
        font-size: 1.8em;
    }

    .page-about__btn {
        display: block;
        width: fit-content;
        margin: 10px auto;
    }

    .page-about__cta-banner .page-about__btn {
        width: 80%;
    }

    .page-about__values-grid {
        gap: 20px;
    }
}