/* style/about.css */

/* Biến CSS cho màu sắc */
:root {
    --page-about-primary-color: #0A2647;
    --page-about-secondary-color: #FFC107;
    --page-about-text-dark: #0A2647;
    --page-about-text-light: #FFFFFF;
    --page-about-bg-light: #F8F9FA;
    --page-about-bg-dark: #0A2647;
    --page-about-accent-color: #FFC107;
}

.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-section {
    background: linear-gradient(135deg, var(--page-about-bg-dark) 0%, #1A3F6D 100%);
    color: var(--page-about-text-light);
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-about__hero-section::before {
    content: '';
    position: absolute;
    top: -50px;
    left: -50px;
    width: 200px;
    height: 200px;
    background-color: rgba(255, 193, 7, 0.1);
    border-radius: 50%;
    animation: page-about-bubble-float 15s infinite ease-in-out;
}

.page-about__hero-section::after {
    content: '';
    position: absolute;
    bottom: -70px;
    right: -70px;
    width: 250px;
    height: 250px;
    background-color: rgba(255, 193, 7, 0.15);
    border-radius: 50%;
    animation: page-about-bubble-float 20s infinite reverse ease-in-out;
}

@keyframes page-about-bubble-float {
    0% { transform: translate(0, 0) scale(1); opacity: 0.8; }
    50% { transform: translate(20px, -20px) scale(1.1); opacity: 1; }
    100% { transform: translate(0, 0) scale(1); opacity: 0.8; }
}

.page-about__hero-title {
    font-size: 3.2em;
    margin-bottom: 20px;
    font-weight: bold;
    color: var(--page-about-text-light);
}

.page-about__hero-description {
    font-size: 1.2em;
    max-width: 800px;
    margin: 0 auto 40px auto;
    color: rgba(255, 255, 255, 0.9);
}

.page-about__section-title {
    font-size: 2.5em;
    color: var(--page-about-primary-color);
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 10px;
}

.page-about__section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 0;
    width: 80px;
    height: 4px;
    background-color: var(--page-about-accent-color);
    border-radius: 2px;
}

.page-about__btn {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    margin: 0 10px;
}

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

.page-about__btn--primary:hover {
    background-color: #e0ac00; /* Slightly darker amber */
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

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

.page-about__btn--secondary:hover {
    background-color: #071e36; /* Slightly darker primary */
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.page-about__btn--outline {
    background-color: transparent;
    color: var(--page-about-accent-color);
    border: 2px solid var(--page-about-accent-color);
}

.page-about__btn--outline:hover {
    background-color: var(--page-about-accent-color);
    color: var(--page-about-primary-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.page-about__mission-vision, .page-about__values-section, .page-about__why-choose-us, .page-about__call-to-action {
    padding: 80px 0;
}

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

.page-about__values-section {
    background-color: #f1f6f9; /* Light greyish blue for contrast */
}

.page-about__grid-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    text-align: left;
}

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

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

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

.page-about__content-block .page-about__section-title {
    text-align: left;
    margin-bottom: 25px;
}

.page-about__content-block .page-about__section-title::after {
    left: 0;
    transform: translateX(0);
}

.page-about__text {
    font-size: 1.1em;
    margin-bottom: 20px;
    color: #333;
}

.page-about__image-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
}

.page-about__image {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.page-about__values-list {
    list-style: none;
    padding: 0;
    margin-top: 20px;
}

.page-about__values-list li {
    background-color: var(--page-about-text-light);
    padding: 15px 20px;
    margin-bottom: 15px;
    border-left: 5px solid var(--page-about-accent-color);
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    font-size: 1.05em;
}

.page-about__values-list li strong {
    color: var(--page-about-primary-color);
}

.page-about__why-choose-us .page-about__section-title {
    margin-bottom: 60px;
}

.page-about__features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    text-align: center;
}

.page-about__feature-card {
    background-color: var(--page-about-text-light);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about__feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
}

.page-about__feature-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    filter: drop-shadow(0 4px 8px rgba(255, 193, 7, 0.3));
}

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

.page-about__feature-text {
    color: #555;
    font-size: 1em;
}

.page-about__call-to-action {
    background: linear-gradient(90deg, var(--page-about-primary-color) 0%, #0D3B66 100%);
    color: var(--page-about-text-light);
    text-align: center;
    padding: 80px 0;
}

.page-about__call-to-action .page-about__section-title {
    color: var(--page-about-text-light);
}

.page-about__call-to-action .page-about__section-title::after {
    background-color: var(--page-about-accent-color);
}

.page-about__call-to-action .page-about__text {
    max-width: 900px;
    margin: 0 auto 40px auto;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.15em;
}

/* Responsive Design */
@media (max-width: 992px) {
    .page-about__hero-title {
        font-size: 2.5em;
    }
    .page-about__section-title {
        font-size: 2em;
    }
    .page-about__grid-layout {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .page-about__grid-layout--reverse {
        grid-template-areas: unset;
    }
    .page-about__content-block .page-about__section-title {
        text-align: center;
    }
    .page-about__content-block .page-about__section-title::after {
        left: 50%;
        transform: translateX(-50%);
    }
    .page-about__image-wrapper {
        order: -1; /* Image first on mobile for better flow */
        margin-bottom: 30px;
    }
    .page-about__mission-vision, .page-about__values-section, .page-about__why-choose-us, .page-about__call-to-action {
        padding: 60px 0;
    }
}

@media (max-width: 768px) {
    .page-about__hero-section {
        padding: 80px 0;
    }
    .page-about__hero-title {
        font-size: 2em;
    }
    .page-about__hero-description {
        font-size: 1em;
    }
    .page-about__btn {
        padding: 12px 25px;
        font-size: 1em;
        margin: 10px 5px;
    }
    .page-about__section-title {
        font-size: 1.8em;
    }
    .page-about__features-grid {
        grid-template-columns: 1fr;
    }
    .page-about__values-list li {
        font-size: 1em;
        padding: 12px 15px;
    }
}

@media (max-width: 480px) {
    .page-about__hero-section {
        padding: 60px 0;
    }
    .page-about__hero-title {
        font-size: 1.8em;
    }
    .page-about__btn {
        display: block;
        width: fit-content;
        margin: 15px auto;
    }
    .page-about__section-title {
        font-size: 1.5em;
    }
    .page-about__text {
        font-size: 0.95em;
    }
}