/* style/about.css */

/* Biến CSS */
:root {
    --page-about-primary-color: #0A2463;
    --page-about-secondary-color: #E3B505;
    --page-about-text-dark: #0A2463;
    --page-about-text-light: #FFFFFF;
    --page-about-bg-light: #F8F8F8;
    --page-about-bg-dark: #0A2463;
    --page-about-accent-gold-hover: #C9A104;
    --page-about-shadow: rgba(0, 0, 0, 0.1);
}

.page-about {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, 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;
}

/* Hero Section */
.page-about__hero {
    background: linear-gradient(135deg, var(--page-about-bg-dark) 0%, #1A3B7A 100%);
    color: var(--page-about-text-light);
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-about__hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('[GALLERY:bg:abstract,geometric,pattern,dark_blue]') no-repeat center center/cover;
    opacity: 0.1;
    z-index: 0;
}

.page-about__hero > .page-about__container {
    position: relative;
    z-index: 1;
}

.page-about__hero-title {
    font-size: 3.5em;
    margin-bottom: 15px;
    font-weight: 700;
    color: var(--page-about-text-light);
}

.page-about__highlight {
    color: var(--page-about-secondary-color);
}

.page-about__hero-subtitle {
    font-size: 1.5em;
    margin-bottom: 40px;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.9);
}

/* General Section Styles */
.page-about__section {
    padding: 80px 0;
    position: relative;
}

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

.page-about__section-title {
    font-size: 2.5em;
    color: var(--page-about-primary-color);
    text-align: center;
    margin-bottom: 60px;
    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__section-title--light {
    color: var(--page-about-text-light);
}

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

.page-about__text-center {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px auto;
    font-size: 1.1em;
}

.page-about__text--light {
    color: rgba(255, 255, 255, 0.9);
}

/* Grid Layout for sections */
.page-about__grid {
    display: flex;
    align-items: center;
    gap: 40px;
}

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

.page-about__content-block,
.page-about__image-block {
    flex: 1;
}

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

.page-about__mission-vision p strong {
    color: var(--page-about-primary-color);
}

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

.page-about__image--centered {
    display: block;
    margin: 40px auto 0 auto;
    max-width: 80%;
}

/* Value List */
.page-about__value-list {
    list-style: none;
    padding: 0;
    margin-top: 20px;
}

.page-about__value-list li {
    background-color: #FFFFFF;
    border-left: 5px solid var(--page-about-secondary-color);
    padding: 15px 20px;
    margin-bottom: 15px;
    border-radius: 5px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    font-size: 1.1em;
    color: #333;
}

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

/* Timeline */
.page-about__timeline {
    position: relative;
    max-width: 900px;
    margin: 60px auto;
    padding: 20px 0;
}

.page-about__timeline::before {
    content: '';
    position: absolute;
    width: 4px;
    background-color: var(--page-about-primary-color);
    top: 0;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.page-about__timeline-item {
    padding: 10px 0;
    position: relative;
    width: 50%;
    margin-bottom: 40px;
}

.page-about__timeline-item:nth-child(odd) {
    left: 0;
    padding-right: 60px;
    text-align: right;
}

.page-about__timeline-item:nth-child(even) {
    left: 50%;
    padding-left: 60px;
    text-align: left;
}

.page-about__timeline-item::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: var(--page-about-secondary-color);
    border: 3px solid var(--page-about-primary-color);
    top: 15px;
    border-radius: 50%;
    z-index: 1;
}

.page-about__timeline-item:nth-child(odd)::after {
    right: -10px;
}

.page-about__timeline-item:nth-child(even)::after {
    left: -10px;
}

.page-about__timeline-year {
    font-size: 1.8em;
    color: var(--page-about-primary-color);
    margin-bottom: 10px;
    font-weight: 600;
}

.page-about__timeline-description {
    font-size: 1.1em;
    color: #555;
}

.page-about__inline-link {
    color: var(--page-about-primary-color);
    text-decoration: underline;
    font-weight: bold;
}

.page-about__inline-link:hover {
    color: var(--page-about-secondary-color);
}

/* Call to Action Section */
.page-about__call-to-action {
    background: linear-gradient(135deg, #1A3B7A 0%, var(--page-about-primary-color) 100%);
    color: var(--page-about-text-light);
    text-align: center;
    padding: 80px 0;
}

.page-about__flex-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* Buttons */
.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;
    margin: 10px;
    cursor: pointer;
}

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

.page-about__btn--primary:hover {
    background-color: var(--page-about-accent-gold-hover);
    border-color: var(--page-about-accent-gold-hover);
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}

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

.page-about__btn--secondary:hover {
    background-color: #051A4C;
    border-color: var(--page-about-secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}

.page-about__btn--text {
    background: none;
    color: var(--page-about-text-light);
    border: 2px solid rgba(255, 255, 255, 0.7);
    padding: 13px 28px;
}

.page-about__btn--text:hover {
    border-color: var(--page-about-secondary-color);
    color: var(--page-about-secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

/* Responsive Design */
@media (max-width: 992px) {
    .page-about__hero-title {
        font-size: 2.8em;
    }
    .page-about__hero-subtitle {
        font-size: 1.2em;
    }
    .page-about__section-title {
        font-size: 2em;
    }
    .page-about__grid {
        flex-direction: column;
    }
    .page-about__grid--reverse {
        flex-direction: column;
    }
    .page-about__timeline::before {
        left: 20px;
        transform: translateX(0);
    }
    .page-about__timeline-item {
        width: 100%;
        padding-left: 60px;
        padding-right: 20px;
        text-align: left;
    }
    .page-about__timeline-item:nth-child(odd) {
        left: 0;
        padding-right: 20px;
    }
    .page-about__timeline-item:nth-child(even) {
        left: 0;
        padding-left: 60px;
    }
    .page-about__timeline-item::after {
        left: 10px !important;
        right: auto !important;
    }
}

@media (max-width: 768px) {
    .page-about__hero-title {
        font-size: 2.2em;
    }
    .page-about__hero-subtitle {
        font-size: 1em;
    }
    .page-about__section {
        padding: 50px 0;
    }
    .page-about__section-title {
        font-size: 1.8em;
        margin-bottom: 40px;
    }
    .page-about__btn {
        padding: 12px 25px;
        font-size: 1em;
    }
    .page-about__value-list li {
        font-size: 1em;
        padding: 12px 15px;
    }
    .page-about__timeline-year {
        font-size: 1.5em;
    }
    .page-about__timeline-description {
        font-size: 1em;
    }
}

@media (max-width: 480px) {
    .page-about__hero-title {
        font-size: 1.8em;
    }
    .page-about__hero-subtitle {
        font-size: 0.9em;
    }
    .page-about__btn {
        width: 100%;
        margin: 10px 0;
    }
    .page-about__section-title {
        font-size: 1.5em;
    }
}