/**
 * About Page Builder Styles
 *
 * CSS cho Landing Page Giới thiệu trường mầm non
 * 
 * @package Flatsome-child
 * @since 1.0.0
 */

/* ==========================================================================
   Variables
   ========================================================================== */
:root {
    --about-primary: var(--main-color, #FF6B6B);
    --about-secondary: #4ECDC4;
    --about-accent: #FFE66D;
    --about-dark: #2C3E50;
    --about-light: #F8F9FA;
    --about-text: #333333;
    --about-text-light: #666666;
    --about-white: #FFFFFF;
    --about-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --about-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
    --about-radius: 16px;
    --about-radius-sm: 8px;
    --about-transition: all 0.3s ease;
}

/* ==========================================================================
   Common Styles
   ========================================================================== */
.about-page section {
    padding: 80px 0;
}

.about-page .section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--about-dark);
    text-align: center;
    margin-bottom: 1rem;
    position: relative;
}

.about-page .section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--about-primary), var(--about-secondary));
    margin: 1rem auto 0;
    border-radius: 2px;
}

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

/* ==========================================================================
   1. Hero Section
   ========================================================================== */
.about-hero {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
    background-color: var(--about-light);
    overflow: hidden;
}

.about-hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #FFA500, rgba(78, 205, 196, 0.8));
    z-index: 1;
}

.about-hero__container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-hero__content {
    color: var(--about-white);
}

.about-hero__title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    color: #fff;
}

.about-hero__slogan {
    font-size: 1.5rem;
    font-style: italic;
    margin-bottom: 1.5rem;
    opacity: 0.95;
}

.about-hero__desc {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.about-hero__btn {
    display: inline-block;
    padding: 15px 40px;
    background: var(--about-white);
    color: var(--about-primary);
    font-weight: 600;
    border-radius: 50px;
    text-decoration: none;
    transition: var(--about-transition);
    box-shadow: var(--about-shadow);
}

.about-hero__btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--about-shadow-hover);
}

.about-hero__media {
    position: relative;
}

.about-hero__image {
    width: 100%;
    border-radius: var(--about-radius);
    box-shadow: var(--about-shadow-hover);
}

/* ==========================================================================
   2. History Section
   ========================================================================== */
.about-history {
    background: var(--about-white);
}

.about-history__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 60px;
}

.about-history__founding {
    display: inline-flex;
    flex-direction: column;
    background: linear-gradient(135deg, var(--about-primary), var(--about-secondary));
    color: var(--about-white);
    padding: 20px 30px;
    border-radius: var(--about-radius);
    margin-bottom: 1.5rem;
}

.about-history__label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-history__year {
    font-size: 3rem;
    font-weight: 800;
}

.about-history__intro {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--about-text);
}

.about-history__image {
    width: 100%;
    border-radius: var(--about-radius);
    box-shadow: var(--about-shadow);
}

/* Timeline */
.about-history__timeline {
    margin-top: 60px;
}

.about-history__subtitle {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 40px;
    color: var(--about-dark);
}

.about-history__milestones {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.about-history__milestones::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, var(--about-primary), var(--about-secondary));
    transform: translateX(-50%);
    border-radius: 2px;
}

.about-history__milestone {
    display: flex;
    margin-bottom: 40px;
    position: relative;
}

.about-history__milestone.milestone--left {
    justify-content: flex-start;
    padding-right: 50%;
}

.about-history__milestone.milestone--right {
    justify-content: flex-end;
    padding-left: 50%;
}

.milestone__year {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    background: var(--about-primary);
    color: var(--about-white);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 700;
    z-index: 2;
}

.milestone__content {
    background: var(--about-white);
    padding: 25px;
    border-radius: var(--about-radius);
    box-shadow: var(--about-shadow);
    max-width: 90%;
}

.milestone__title {
    font-size: 1.2rem;
    color: var(--about-dark);
    margin-bottom: 0.5rem;
}

.milestone__desc {
    color: var(--about-text-light);
    line-height: 1.6;
}

.milestone__image img {
    width: 100%;
    border-radius: var(--about-radius-sm);
    margin-top: 15px;
}

/* ==========================================================================
   3. Vision Mission Section
   ========================================================================== */
.about-vision-mission {
    background: var(--about-light);
}

.about-vision-mission__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin: 40px 0;
}

.vision-box,
.mission-box {
    background: var(--about-white);
    border-radius: var(--about-radius);
    overflow: hidden;
    box-shadow: var(--about-shadow);
    transition: var(--about-transition);
}

.vision-box:hover,
.mission-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--about-shadow-hover);
}

.vision-box__media img,
.mission-box__media img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.vision-box__content,
.mission-box__content {
    padding: 30px;
}

.vision-box__title,
.mission-box__title {
    font-size: 1.5rem;
    color: var(--about-dark);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.vision-box__title i,
.mission-box__title i {
    color: var(--about-primary);
}

.vision-box__text,
.mission-box__text {
    color: var(--about-text);
    line-height: 1.8;
}

/* Core Values */
.about-vision-mission__values {
    margin-top: 60px;
}

.values__title {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 40px;
    color: var(--about-dark);
}

.values__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
}

.values__item {
    background: var(--about-white);
    padding: 30px;
    border-radius: var(--about-radius);
    text-align: center;
    box-shadow: var(--about-shadow);
    transition: var(--about-transition);
}

.values__item:hover {
    transform: translateY(-5px);
    box-shadow: var(--about-shadow-hover);
}

.values__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--about-primary), var(--about-secondary));
    border-radius: 50%;
}

.values__icon img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.values__icon i {
    font-size: 2rem;
    color: var(--about-white);
}

.values__item-title {
    font-size: 1.2rem;
    color: var(--about-dark);
    margin-bottom: 0.5rem;
}

.values__item-desc {
    color: var(--about-text-light);
    line-height: 1.6;
}

/* ==========================================================================
   4. Philosophy Section
   ========================================================================== */
.about-philosophy {
    background: var(--about-white);
}

.about-philosophy__main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin: 40px 0;
}

.about-philosophy__intro {
    font-size: 1.25rem;
    color: var(--about-primary);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.about-philosophy__detail.wysiwyg-content {
    color: var(--about-text);
    line-height: 1.8;
}

.about-philosophy__detail.wysiwyg-content h3,
.about-philosophy__detail.wysiwyg-content h4 {
    color: var(--about-dark);
    margin-top: 1.5rem;
}

.about-philosophy__detail.wysiwyg-content ul,
.about-philosophy__detail.wysiwyg-content ol {
    padding-left: 20px;
}

.about-philosophy__image {
    width: 100%;
    border-radius: var(--about-radius);
    box-shadow: var(--about-shadow);
}

/* Teaching Methods */
.about-philosophy__methods {
    margin-top: 60px;
}

.methods__title {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 40px;
    color: var(--about-dark);
}

.methods__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.methods__item {
    display: flex;
    gap: 20px;
    padding: 25px;
    background: var(--about-light);
    border-radius: var(--about-radius);
    border-left: 4px solid var(--method-color, var(--about-primary));
    transition: var(--about-transition);
}

.methods__item:hover {
    transform: translateX(10px);
    box-shadow: var(--about-shadow);
}

.methods__icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--about-white);
    border-radius: 50%;
    box-shadow: var(--about-shadow);
}

.methods__icon img {
    width: 30px;
    height: 30px;
    object-fit: contain;
}

.methods__icon i {
    font-size: 1.5rem;
    color: var(--method-color, var(--about-primary));
}

.methods__item-title {
    font-size: 1.1rem;
    color: var(--about-dark);
    margin-bottom: 0.5rem;
}

.methods__item-desc {
    color: var(--about-text-light);
    line-height: 1.6;
    margin: 0;
}

/* ==========================================================================
   5. Environment Section
   ========================================================================== */
.about-environment {
    background: var(--about-light);
}

.about-environment__desc {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 40px;
    color: var(--about-text-light);
    line-height: 1.8;
}

/* Filter Buttons */
.about-environment__filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 12px 30px;
    background: var(--about-white);
    border: 2px solid transparent;
    border-radius: 50px;
    font-weight: 500;
    color: var(--about-text);
    cursor: pointer;
    transition: var(--about-transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--about-primary);
    color: var(--about-white);
}

/* Gallery Grid */
.about-environment__gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.environment__item {
    background: var(--about-white);
    border-radius: var(--about-radius);
    overflow: hidden;
    box-shadow: var(--about-shadow);
    transition: var(--about-transition);
}

.environment__item:hover {
    transform: translateY(-5px);
    box-shadow: var(--about-shadow-hover);
}

.environment__image-wrapper {
    position: relative;
    overflow: hidden;
}

.environment__image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--about-transition);
}

.environment__item:hover .environment__image {
    transform: scale(1.05);
}

.environment__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    opacity: 0;
    transition: var(--about-transition);
}

.environment__item:hover .environment__overlay {
    opacity: 1;
}

.environment__count {
    color: var(--about-white);
    font-weight: 500;
}

.environment__view-btn {
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    background: var(--about-white);
    color: var(--about-primary);
    cursor: pointer;
    transition: var(--about-transition);
}

.environment__view-btn:hover {
    background: var(--about-primary);
    color: var(--about-white);
}

.environment__content {
    padding: 20px;
}

.environment__category {
    display: inline-block;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 10px;
}

.environment__category.classroom {
    background: rgba(255, 107, 107, 0.1);
    color: var(--about-primary);
}

.environment__category.playground {
    background: rgba(78, 205, 196, 0.1);
    color: var(--about-secondary);
}

.environment__category.function-room {
    background: rgba(255, 230, 109, 0.3);
    color: #B8860B;
}

.environment__item-title {
    font-size: 1.2rem;
    color: var(--about-dark);
    margin-bottom: 0.5rem;
}

.environment__item-desc {
    color: var(--about-text-light);
    line-height: 1.6;
    margin: 0;
}

/* Lightbox */
.environment-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: none;
}

.environment-lightbox[aria-hidden="false"] {
    display: block;
}

.lightbox__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
}

.lightbox__content {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
    position: absolute;
    background: transparent;
    border: none;
    color: var(--about-white);
    font-size: 2rem;
    cursor: pointer;
    padding: 15px;
    z-index: 10;
    transition: var(--about-transition);
}

.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover {
    color: var(--about-primary);
}

.lightbox__close {
    top: 20px;
    right: 20px;
}

.lightbox__prev {
    left: 20px;
}

.lightbox__next {
    right: 20px;
}

.lightbox__image-container {
    max-width: 90%;
    max-height: 90%;
}

.lightbox__image {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
}

.lightbox__counter {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--about-white);
    font-size: 1rem;
}

/* ==========================================================================
   6. Team Section
   ========================================================================== */
.about-team {
    background: var(--about-white);
}

.about-team__desc {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 40px;
    color: var(--about-text-light);
    line-height: 1.8;
}

/* Team Stats */
.about-team__stats {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 60px;
    padding: 40px;
    background: linear-gradient(135deg, var(--about-primary), var(--about-secondary));
    border-radius: var(--about-radius);
}

.team-stat {
    text-align: center;
    color: var(--about-white);
    min-width: 150px;
}

.team-stat__icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.team-stat__number {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1;
}

.team-stat__label {
    font-size: 1rem;
    opacity: 0.9;
    margin-top: 5px;
}

/* Team Grid */
.about-team__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.team-member {
    background: var(--about-light);
    border-radius: var(--about-radius);
    overflow: hidden;
    box-shadow: var(--about-shadow);
    transition: var(--about-transition);
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: var(--about-shadow-hover);
}

.team-member__avatar {
    position: relative;
    overflow: hidden;
}

.team-member__image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: var(--about-transition);
}

.team-member:hover .team-member__image {
    transform: scale(1.05);
}

.team-member__placeholder {
    width: 100%;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--about-primary), var(--about-secondary));
}

.team-member__placeholder i {
    font-size: 5rem;
    color: var(--about-white);
    opacity: 0.5;
}

.team-member__info {
    padding: 25px;
}

.team-member__name {
    font-size: 1.4rem;
    color: var(--about-dark);
    margin-bottom: 5px;
}

.team-member__position {
    color: var(--about-primary);
    font-weight: 500;
    margin-bottom: 15px;
}

.team-member__details {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 15px;
}

.team-member__qualification,
.team-member__experience {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--about-text-light);
}

.team-member__qualification i,
.team-member__experience i {
    color: var(--about-secondary);
}

.team-member__bio {
    color: var(--about-text);
    line-height: 1.6;
    margin-bottom: 15px;
}

.team-member__social {
    display: flex;
    gap: 10px;
}

.team-member__social-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--about-white);
    color: var(--about-text);
    transition: var(--about-transition);
}

.team-member__social-link:hover {
    transform: translateY(-3px);
}

.team-member__social-link--facebook:hover {
    background: #1877F2;
    color: var(--about-white);
}

.team-member__social-link--instagram:hover {
    background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
    color: var(--about-white);
}

.team-member__social-link--email:hover {
    background: var(--about-primary);
    color: var(--about-white);
}

/* ==========================================================================
   Responsive Styles
   ========================================================================== */
@media (max-width: 992px) {
    .about-hero__container,
    .about-history__content,
    .about-philosophy__main,
    .about-vision-mission__grid {
        grid-template-columns: 1fr;
    }

    .about-hero__title {
        font-size: 2.5rem;
    }

    .about-page section {
        padding: 60px 0;
    }

    .about-history__milestones::before {
        left: 20px;
    }

    .about-history__milestone.milestone--left,
    .about-history__milestone.milestone--right {
        padding-left: 60px;
        padding-right: 0;
        justify-content: flex-start;
    }

    .milestone__year {
        left: 20px;
        transform: translateX(-50%);
    }
}

@media (max-width: 768px) {
    .about-hero {
        min-height: 60vh;
    }

    .about-hero__title {
        font-size: 2rem;
    }

    .about-hero__slogan {
        font-size: 1.2rem;
    }

    .about-page .section-title {
        font-size: 1.8rem;
    }

    .values__grid {
        grid-template-columns: 1fr;
    }

    .methods__grid {
        grid-template-columns: 1fr;
    }

    .about-environment__gallery {
        grid-template-columns: 1fr;
    }

    .about-team__grid {
        grid-template-columns: 1fr;
    }

    .about-team__stats {
        padding: 30px 20px;
        gap: 30px;
    }

    .team-stat__number {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .about-page section {
        padding: 40px 0;
    }

    .about-hero__btn {
        padding: 12px 30px;
    }

    .filter-btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .about-environment__filters {
        gap: 10px;
    }
}