/* ========================================
   About Page Styles
   ======================================== */

/* About Hero Section */
.about-hero {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-24) 0 var(--space-16);
    overflow: hidden;
    background: var(--color-bg-primary);
}

.about-hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.about-hero-title {
    font-size: clamp(2.25rem, 5vw, 4rem);
    font-weight: var(--font-weight-extrabold);
    line-height: 1.1;
    margin-bottom: var(--space-6);
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

.about-hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--color-text-secondary);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

/* Mission Section */
.mission-section {
    background: var(--color-bg-secondary);
    padding: var(--space-20) 0;
}

.mission-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.mission-content .section-label {
    margin-bottom: var(--space-4);
}

.mission-content .section-title {
    text-align: left;
    margin-bottom: var(--space-6);
}

.mission-text {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--space-4);
}

.mission-text:last-child {
    margin-bottom: 0;
}

.mission-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

.stat-card {
    background: var(--color-bg-primary);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: border-color var(--transition-base);
}

.stat-card:hover {
    border-color: var(--color-primary);
}

.stat-card .stat-number {
    font-size: 2.5rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--color-primary);
    margin-bottom: var(--space-2);
}

.stat-card .stat-number::after {
    content: none;
}

.stat-card .stat-label {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
}

/* Story Section */
.story-section {
    background: var(--color-bg-primary);
    padding: var(--space-20) 0;
}

.story-content {
    max-width: 900px;
    margin: 0 auto;
}

.story-block {
    display: flex;
    gap: var(--space-6);
    margin-bottom: var(--space-10);
    padding-bottom: var(--space-10);
    border-bottom: 1px solid var(--color-border);
}

.story-block:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.story-icon {
    width: 64px;
    height: 64px;
    min-width: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(224, 123, 60, 0.1) 0%, rgba(212, 165, 116, 0.1) 100%);
    border-radius: var(--radius-xl);
    color: var(--color-primary);
}

.story-text h3 {
    font-size: 1.375rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-3);
}

.story-text p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    font-size: 1.0625rem;
}

/* Founders Section */
.founders-section {
    background: var(--color-bg-secondary);
    padding: var(--space-20) 0;
}

.founders-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.founder-card {
    background: var(--color-bg-primary);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-border);
    padding: var(--space-8);
    text-align: center;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.founder-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.founder-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--space-6);
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.founder-initials {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: white;
    letter-spacing: -0.02em;
}

.founder-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.founder-info {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.founder-name {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-1);
}

.founder-title {
    font-size: 0.9375rem;
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-4);
}

.founder-bio {
    color: var(--color-text-secondary);
    line-height: 1.7;
    font-size: 0.9375rem;
    margin-bottom: var(--space-6);
}

.founder-social {
    display: flex;
    gap: var(--space-3);
}

.founder-social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.founder-social-link:hover {
    background: var(--color-primary);
    color: white;
}

/* Values Section */
.values-section {
    background: var(--color-bg-secondary);
    padding: var(--space-20) 0;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
}

.value-card {
    background: var(--color-bg-primary);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: border-color var(--transition-base);
}

.value-card:hover {
    border-color: var(--color-primary);
}

.value-icon-wrapper {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(224, 123, 60, 0.1) 0%, rgba(212, 165, 116, 0.1) 100%);
    border-radius: var(--radius-xl);
    margin: 0 auto var(--space-6);
}

.value-icon {
    color: var(--color-primary);
}

.value-title {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-3);
}

.value-description {
    color: var(--color-text-secondary);
    line-height: 1.6;
    font-size: 0.9375rem;
}

/* Why Vietnam Section */
.why-vietnam-section {
    background: var(--color-bg-primary);
    padding: var(--space-20) 0;
}

.why-vietnam-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.why-vietnam-content .section-label {
    margin-bottom: var(--space-4);
}

.why-vietnam-content .section-title {
    text-align: left;
    margin-bottom: var(--space-6);
}

.why-vietnam-text {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--space-8);
}

.why-vietnam-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.why-vietnam-list li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
}

.why-vietnam-list svg {
    color: var(--color-success);
    flex-shrink: 0;
}

.why-vietnam-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, rgba(224, 123, 60, 0.1) 0%, rgba(212, 165, 116, 0.1) 100%);
    border-radius: var(--radius-2xl);
    border: 2px dashed var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-content {
    text-align: center;
}

.placeholder-emoji {
    font-size: 4rem;
    display: block;
    margin-bottom: var(--space-4);
}

.placeholder-text {
    color: var(--color-text-tertiary);
    font-weight: var(--font-weight-medium);
}

/* Partners Section */
.partners-section {
    background: var(--color-bg-secondary);
    padding: var(--space-20) 0;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-6);
}

.partner-badge {
    background: var(--color-bg-primary);
    padding: var(--space-6) var(--space-4);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: border-color var(--transition-base), transform var(--transition-base);
}

.partner-badge:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.partner-flag,
.partner-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: var(--space-3);
}

.partner-text {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
}

/* ========================================
   Responsive Styles
   ======================================== */

/* Tablet (1024px and below) */
@media (max-width: 1024px) {
    .mission-grid {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }

    .mission-content .section-title {
        text-align: center;
    }

    .mission-content .section-label {
        display: block;
        text-align: center;
    }

    .mission-text {
        text-align: center;
    }

    .founders-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-6);
    }

    .founder-card {
        padding: var(--space-6);
    }

    .founder-avatar {
        width: 100px;
        height: 100px;
    }

    .founder-initials {
        font-size: 2rem;
    }

    .founder-name {
        font-size: 1.25rem;
    }

    .founder-bio {
        font-size: 0.875rem;
    }

    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .why-vietnam-grid {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }

    .why-vietnam-content .section-title {
        text-align: center;
    }

    .why-vietnam-content .section-label {
        display: block;
        text-align: center;
    }

    .why-vietnam-text {
        text-align: center;
    }

    .why-vietnam-list {
        align-items: center;
    }

    .why-vietnam-image {
        order: -1;
    }

    .partners-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Mobile (768px and below) */
@media (max-width: 768px) {
    .about-hero {
        min-height: auto;
        padding: var(--space-20) 0 var(--space-12);
    }

    .about-hero-title {
        font-size: clamp(1.75rem, 6vw, 2.5rem);
    }

    .mission-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }

    .stat-card {
        padding: var(--space-6);
    }

    .stat-card .stat-number {
        font-size: 2rem;
    }

    .story-block {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .story-icon {
        margin-bottom: var(--space-4);
    }

    .founders-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .founder-card {
        max-width: 400px;
        margin: 0 auto;
    }

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

    .value-card {
        padding: var(--space-6);
    }

    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .partner-badge {
        padding: var(--space-4);
    }

    .partner-flag,
    .partner-icon {
        font-size: 1.5rem;
    }

    .partner-text {
        font-size: 0.75rem;
    }
}

/* Small Mobile (480px and below) */
@media (max-width: 480px) {
    .about-hero-title {
        font-size: 1.5rem;
    }

    .about-hero-subtitle {
        font-size: 1rem;
    }

    .mission-stats {
        grid-template-columns: 1fr;
    }

    .stat-card .stat-number {
        font-size: 1.75rem;
    }

    .founder-avatar {
        width: 80px;
        height: 80px;
    }

    .founder-initials {
        font-size: 1.5rem;
    }

    .founder-name {
        font-size: 1.125rem;
    }

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