/* style/about.css */

/* Biến CSS cho màu sắc */
:root {
    --page-about-primary-color: #DC143C;
    --page-about-secondary-color: #36454F;
    --page-about-text-color-dark: #333333;
    --page-about-text-color-light: #FFFFFF;
    --page-about-background-light: #F8F8F8;
    --page-about-border-color: #E0E0E0;
}

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

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

.page-about__hero-section {
    background: linear-gradient(135deg, var(--page-about-primary-color), var(--page-about-secondary-color));
    color: var(--page-about-text-color-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: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: rotate(45deg);
    animation: page-about-hero-animate 10s infinite linear;
}

.page-about__hero-section::after {
    content: '';
    position: absolute;
    bottom: -50px;
    right: -50px;
    width: 150px;
    height: 150px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    transform: rotate(-45deg);
    animation: page-about-hero-animate 12s infinite reverse linear;
}

@keyframes page-about-hero-animate {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(100px, 50px) rotate(360deg); }
}

.page-about__title {
    font-size: 3.5em;
    margin-bottom: 20px;
    color: var(--page-about-text-color-light);
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.page-about__subtitle {
    font-size: 1.4em;
    margin-bottom: 40px;
    color: rgba(255, 255, 255, 0.9);
}

.page-about__button {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 1.1em;
}

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

.page-about__button--hero:hover {
    background-color: var(--page-about-primary-color);
    color: var(--page-about-text-color-light);
    border-color: var(--page-about-text-color-light);
}

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

.page-about__button--primary:hover {
    background-color: darken(var(--page-about-primary-color), 10%); /* Fallback for browsers not supporting CSS darken */
    background-color: color-mix(in srgb, var(--page-about-primary-color) 90%, black 10%);
    border-color: darken(var(--page-about-primary-color), 10%);
    border-color: color-mix(in srgb, var(--page-about-primary-color) 90%, black 10%);
}

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

.page-about__button--secondary:hover {
    background-color: darken(var(--page-about-secondary-color), 10%);
    background-color: color-mix(in srgb, var(--page-about-secondary-color) 90%, black 10%);
    border-color: darken(var(--page-about-secondary-color), 10%);
    border-color: color-mix(in srgb, var(--page-about-secondary-color) 90%, black 10%);
}

.page-about__mission-values-section, .page-about__why-choose-section, .page-about__team-section, .page-about__cta-section {
    padding: 60px 0;
    text-align: center;
}

.page-about__mission-values-section {
    background-color: var(--page-about-background-light);
}

.page-about__why-choose-section {
    background-color: var(--page-about-text-color-light);
}

.page-about__team-section {
    background-color: var(--page-about-background-light);
}

.page-about__cta-section {
    background-color: var(--page-about-secondary-color);
    color: var(--page-about-text-color-light);
    padding: 80px 0;
}

.page-about__heading {
    font-size: 2.5em;
    margin-bottom: 40px;
    color: var(--page-about-secondary-color);
    font-weight: bold;
}

.page-about__cta-section .page-about__heading {
    color: var(--page-about-text-color-light);
}

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

.page-about__grid-item {
    background-color: var(--page-about-text-color-light);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border-top: 5px solid var(--page-about-primary-color);
}

.page-about__image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 20px;
}

.page-about__item-title {
    font-size: 1.8em;
    color: var(--page-about-primary-color);
    margin-bottom: 15px;
    font-weight: bold;
}

.page-about__text {
    font-size: 1.1em;
    color: var(--page-about-text-color-dark);
    margin-bottom: 15px;
}

.page-about__cta-section .page-about__text {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2em;
    margin-bottom: 30px;
}

.page-about__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.page-about__list li {
    margin-bottom: 10px;
    font-size: 1.1em;
    color: var(--page-about-text-color-dark);
    position: relative;
    padding-left: 25px;
}

.page-about__list li::before {
    content: '✓';
    color: var(--page-about-primary-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.page-about__flex-container {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}

.page-about__flex-item {
    flex: 1;
    min-width: 300px;
    max-width: 350px;
    background-color: var(--page-about-background-light);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    text-align: left;
    border-left: 5px solid var(--page-about-secondary-color);
}

.page-about__flex-item .page-about__image {
    height: 150px;
    object-fit: cover;
    width: 100%;
}

.page-about__cta-bottom {
    margin-top: 50px;
}

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

.page-about__team-description p {
    flex: 1;
}

.page-about__image--team {
    flex: 1;
    max-width: 50%;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* Floating Promotion Button */
.page-about__floating-promo {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
}

.page-about__floating-button {
    background-color: var(--page-about-primary-color);
    color: var(--page-about-text-color-light);
    padding: 15px 25px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.page-about__floating-button:hover {
    background-color: darken(var(--page-about-primary-color), 10%);
    background-color: color-mix(in srgb, var(--page-about-primary-color) 90%, black 10%);
    transform: translateY(-5px);
}

.page-about__floating-icon {
    font-size: 1.5em;
    animation: page-about-sparkle 1.5s infinite alternate;
}

@keyframes page-about-sparkle {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}

/* Responsive Design */
@media (max-width: 992px) {
    .page-about__title {
        font-size: 2.8em;
    }
    .page-about__subtitle {
        font-size: 1.2em;
    }
    .page-about__grid {
        grid-template-columns: 1fr;
    }
    .page-about__flex-container {
        flex-direction: column;
        align-items: center;
    }
    .page-about__flex-item {
        max-width: 90%;
    }
    .page-about__team-description {
        flex-direction: column;
        text-align: center;
    }
    .page-about__image--team {
        max-width: 80%;
        margin-top: 30px;
    }
}

@media (max-width: 768px) {
    .page-about__hero-section {
        padding: 80px 0;
    }
    .page-about__title {
        font-size: 2.2em;
    }
    .page-about__heading {
        font-size: 2em;
    }
    .page-about__button {
        padding: 12px 25px;
        font-size: 1em;
    }
    .page-about__floating-promo {
        bottom: 20px;
        right: 20px;
    }
    .page-about__floating-button {
        padding: 12px 20px;
        font-size: 0.9em;
    }
}

@media (max-width: 480px) {
    .page-about__hero-section {
        padding: 60px 0;
    }
    .page-about__title {
        font-size: 1.8em;
    }
    .page-about__subtitle {
        font-size: 1em;
    }
    .page-about__heading {
        font-size: 1.8em;
    }
    .page-about__grid-item, .page-about__flex-item {
        padding: 20px;
    }
    .page-about__floating-promo {
        bottom: 15px;
        right: 15px;
    }
    .page-about__floating-button {
        padding: 10px 15px;
        font-size: 0.8em;
    }
    .page-about__floating-icon {
        font-size: 1.2em;
    }
}