/* style/about.css */

/* Biến CSS */
:root {
    --page-about-primary-color: #FF4500; /* Cam đỏ năng động */
    --page-about-secondary-color: #1E90FF; /* Xanh lam chuyên nghiệp */
    --page-about-text-dark: #333333;
    --page-about-text-light: #FFFFFF;
    --page-about-bg-light: #f8f8f8;
    --page-about-bg-dark: #2c3e50;
    --page-about-border-color: #e0e0e0;
}

/* Cấu trúc chung của trang */
.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__section {
    padding: 60px 0;
    text-align: center;
}

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

.page-about__section-title {
    font-size: 2.8em;
    color: var(--page-about-primary-color);
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 15px;
}

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

.page-about__sub-title {
    font-size: 1.8em;
    color: var(--page-about-secondary-color);
    margin-top: 25px;
    margin-bottom: 15px;
}

.page-about__paragraph {
    font-size: 1.1em;
    margin-bottom: 20px;
    color: var(--page-about-text-dark);
}

.page-about__btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.3s ease;
    font-size: 1.05em;
}

.page-about__btn--primary {
    background-color: var(--page-about-primary-color);
    color: var(--page-about-text-light);
    border: 2px solid var(--page-about-primary-color);
}

.page-about__btn--primary:hover {
    background-color: #e63900;
    transform: translateY(-2px);
}

.page-about__btn--secondary {
    background-color: transparent;
    color: var(--page-about-secondary-color);
    border: 2px solid var(--page-about-secondary-color);
    margin-left: 15px;
}

.page-about__btn--secondary:hover {
    background-color: var(--page-about-secondary-color);
    color: var(--page-about-text-light);
    transform: translateY(-2px);
}

/* Hero Section */
.page-about__hero-section {
    background: linear-gradient(135deg, var(--page-about-primary-color) 0%, var(--page-about-secondary-color) 100%);
    color: var(--page-about-text-light);
    padding: 100px 0;
    text-align: center;
}

.page-about__hero-title {
    font-size: 3.5em;
    margin-bottom: 20px;
    color: var(--page-about-text-light);
    line-height: 1.2;
}

.page-about__hero-description {
    font-size: 1.3em;
    max-width: 800px;
    margin: 0 auto 40px auto;
    color: rgba(255, 255, 255, 0.9);
}

/* Mission & Vision Section */
.page-about__mission-vision {
    background-color: var(--page-about-bg-light);
}

.page-about__content-row {
    display: flex;
    align-items: center;
    gap: 40px;
    text-align: left;
    margin-top: 40px;
}

.page-about__content-row--reverse {
    flex-direction: row-reverse;
}

.page-about__text-content {
    flex: 1;
}

.page-about__image-wrapper {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.page-about__image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* Core Values Section */
.page-about__core-values {
    background-color: var(--page-about-bg-dark);
    color: var(--page-about-text-light);
}

.page-about__core-values .page-about__section-title {
    color: var(--page-about-text-light);
}

.page-about__core-values .page-about__paragraph {
    color: rgba(255, 255, 255, 0.8);
}

.page-about__core-values .page-about__section-title::after {
    background-color: var(--page-about-primary-color);
}

.page-about__values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.page-about__value-item {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.page-about__value-item:hover {
    transform: translateY(-5px);
    background-color: rgba(255, 255, 255, 0.15);
}

.page-about__value-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
}

.page-about__value-title {
    font-size: 1.5em;
    color: var(--page-about-primary-color);
    margin-bottom: 10px;
}

.page-about__value-description {
    font-size: 1em;
    color: rgba(255, 255, 255, 0.7);
}

/* Why Choose Section */
.page-about__why-choose {
    background-color: var(--page-about-bg-light);
}

.page-about__features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.page-about__feature-item {
    background-color: var(--page-about-text-light);
    padding: 30px;
    border-radius: 10px;
    text-align: left;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about__feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.page-about__feature-icon {
    width: 50px;
    height: 50px;
    margin-bottom: 15px;
}

.page-about__feature-title {
    font-size: 1.4em;
    color: var(--page-about-secondary-color);
    margin-bottom: 10px;
}

.page-about__feature-description {
    font-size: 1em;
    color: var(--page-about-text-dark);
}

.page-about__feature-description a {
    color: var(--page-about-primary-color);
    text-decoration: none;
    font-weight: bold;
}

.page-about__feature-description a:hover {
    text-decoration: underline;
}

/* History Section */
.page-about__history {
    background-color: var(--page-about-bg-dark);
    color: var(--page-about-text-light);
}

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

.page-about__history .page-about__paragraph {
    color: rgba(255, 255, 255, 0.8);
}

.page-about__history .page-about__section-title::after {
    background-color: var(--page-about-primary-color);
}

/* Team Section */
.page-about__team {
    background-color: var(--page-about-bg-light);
}

.page-about__team-list {
    list-style: none;
    padding: 0;
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.page-about__team-item {
    background-color: var(--page-about-text-light);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
    text-align: left;
}

.page-about__team-member {
    font-size: 1.3em;
    color: var(--page-about-primary-color);
    margin-bottom: 10px;
}

.page-about__team-description {
    font-size: 0.95em;
    color: var(--page-about-text-dark);
}

/* Call to Action Section */
.page-about__cta {
    background: linear-gradient(90deg, var(--page-about-secondary-color) 0%, var(--page-about-primary-color) 100%);
    color: var(--page-about-text-light);
    padding: 80px 0;
}

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

.page-about__cta .page-about__paragraph {
    color: rgba(255, 255, 255, 0.9);
    max-width: 800px;
    margin: 0 auto 40px auto;
}

.page-about__cta .page-about__section-title::after {
    background-color: var(--page-about-text-light);
}

.page-about__cta-buttons {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
}

/* Responsive Design */
@media (max-width: 992px) {
    .page-about__hero-title {
        font-size: 2.8em;
    }

    .page-about__hero-description {
        font-size: 1.1em;
    }

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

    .page-about__sub-title {
        font-size: 1.5em;
    }

    .page-about__content-row {
        flex-direction: column;
        text-align: center;
    }

    .page-about__content-row--reverse {
        flex-direction: column-reverse;
    }

    .page-about__image-wrapper {
        margin-top: 30px;
    }

    .page-about__values-grid, .page-about__features-grid, .page-about__team-list {
        grid-template-columns: 1fr;
    }

    .page-about__btn--secondary {
        margin-left: 0;
        margin-top: 10px;
    }

    .page-about__cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 576px) {
    .page-about__hero-section {
        padding: 60px 0;
    }

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

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

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

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

    .page-about__paragraph {
        font-size: 0.95em;
    }

    .page-about__btn {
        padding: 10px 20px;
        font-size: 0.95em;
    }
}