/* =========================================
   ABOUT PAGE STYLES
   Crypto Tek AI - Modern Mobile App Design
   ========================================= */

.about-page {
    padding: 0 var(--spacing-md);
    padding-bottom: 100px;
    max-width: 600px;
    margin: 0 auto;
}

/* -- Hero Section -- */
.about-hero {
    text-align: center;
    padding: 32px 20px 28px;
    margin: 0 calc(-1 * var(--spacing-md));
    margin-bottom: 24px;
    background: linear-gradient(180deg, rgba(255, 107, 53, 0.12) 0%, transparent 100%);
    position: relative;
}

.about-hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 20px;
    right: 20px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.about-logo-img {
    width: 72px;
    height: 72px;
    border-radius: 18px;
    object-fit: cover;
    box-shadow: 0 8px 24px rgba(255, 107, 53, 0.25);
    margin-bottom: 14px;
}

.about-hero-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
    letter-spacing: -0.3px;
}

.about-hero-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    max-width: 320px;
    margin: 0 auto;
    line-height: 1.5;
}

/* -- Section Styling -- */
.about-section {
    margin-bottom: 24px;
}

.about-section-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.about-section-icon {
    font-size: 20px;
}

.about-section-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.2px;
}

.about-section-desc {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 12px;
}

/* -- Highlight Box -- */
.about-highlight-box {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    background: rgba(255, 152, 0, 0.06);
    border: 1px solid rgba(255, 152, 0, 0.15);
    border-radius: 12px;
    padding: 12px 14px;
    margin-top: 12px;
}

.about-highlight-icon {
    font-size: 18px;
    flex-shrink: 0;
    line-height: 1;
}

.about-highlight-box p {
    font-size: 12px;
    color: var(--warning-color);
    line-height: 1.5;
    font-weight: 500;
}

/* -- Features Grid -- */
.about-features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.about-feature-card {
    background: var(--card-bg);
    border-radius: 14px;
    padding: 16px 14px;
    border: 1px solid var(--border-color);
    transition: border-color 150ms ease;
}

.about-feature-card:active {
    border-color: rgba(255, 107, 53, 0.3);
}

.about-feature-icon {
    font-size: 24px;
    margin-bottom: 10px;
    display: block;
}

.about-feature-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.about-feature-desc {
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.5;
}

/* -- Principles List -- */
.about-principles-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.about-principle-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: var(--card-bg);
    border-radius: 14px;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
}

.about-principle-icon {
    font-size: 18px;
    flex-shrink: 0;
    margin-top: 2px;
}

.about-principle-content {
    flex: 1;
    min-width: 0;
}

.about-principle-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.about-principle-desc {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.5;
}

/* -- Disclaimer Section -- */
.about-disclaimer {
    background: rgba(255, 152, 0, 0.06);
    border: 1px solid rgba(255, 152, 0, 0.15);
    border-radius: 14px;
    padding: 16px;
    margin-bottom: 24px;
}

.about-disclaimer-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.about-disclaimer-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.about-disclaimer-header h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--warning-color);
}

.about-disclaimer-text {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* -- Footer Section -- */
.about-footer {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.about-version {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 20px;
}

.about-version-label {
    font-size: 12px;
    color: var(--text-muted);
}

.about-version-value {
    font-size: 12px;
    font-weight: 600;
    color: var(--primary-color);
    background: rgba(255, 107, 53, 0.1);
    padding: 2px 10px;
    border-radius: 8px;
}

.about-contact {
    margin-bottom: 20px;
}

.about-contact-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.about-contact-links {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.about-contact-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: border-color 150ms ease, background 150ms ease;
}

.about-contact-link:active {
    border-color: rgba(255, 107, 53, 0.3);
    background: rgba(255, 107, 53, 0.05);
}

.about-contact-link-icon {
    font-size: 16px;
}

.about-copyright {
    font-size: 11px;
    color: var(--text-muted);
    padding: 16px 0;
    opacity: 0.6;
}

/* =========================================
   DESKTOP RESPONSIVE - About Page
   ========================================= */

@media (min-width: 768px) {
    .about-page {
        max-width: 900px;
        padding: 0 24px;
        padding-bottom: 100px;
    }

    .about-hero {
        padding: 48px 40px 40px;
        margin-bottom: 32px;
        border-radius: 0 0 24px 24px;
    }

    .about-logo-img {
        width: 88px;
        height: 88px;
        border-radius: 22px;
        margin-bottom: 18px;
    }

    .about-hero-title {
        font-size: 30px;
    }

    .about-hero-subtitle {
        font-size: 15px;
        max-width: 480px;
    }

    .about-section {
        margin-bottom: 32px;
    }

    .about-section-icon {
        font-size: 24px;
    }

    .about-section-title {
        font-size: 20px;
    }

    .about-section-desc {
        font-size: 15px;
        line-height: 1.7;
        margin-bottom: 16px;
    }

    .about-highlight-box {
        padding: 16px 20px;
        border-radius: 14px;
    }

    .about-highlight-box p {
        font-size: 14px;
    }

    .about-features-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }

    .about-feature-card {
        padding: 24px 20px;
        border-radius: 16px;
        transition: border-color 200ms ease, transform 200ms ease, box-shadow 200ms ease;
    }

    .about-feature-card:hover {
        border-color: rgba(255, 107, 53, 0.3);
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    }

    .about-feature-icon {
        font-size: 28px;
        margin-bottom: 12px;
    }

    .about-feature-title {
        font-size: 15px;
        margin-bottom: 8px;
    }

    .about-feature-desc {
        font-size: 13px;
    }

    .about-principles-list {
        gap: 12px;
    }

    .about-principle-item {
        padding: 18px 20px;
        border-radius: 16px;
        transition: border-color 200ms ease, transform 200ms ease;
    }

    .about-principle-item:hover {
        border-color: rgba(255, 107, 53, 0.2);
        transform: translateX(4px);
    }

    .about-principle-title {
        font-size: 15px;
    }

    .about-principle-desc {
        font-size: 13px;
    }

    .about-disclaimer {
        padding: 20px 24px;
        border-radius: 16px;
        margin-bottom: 32px;
    }

    .about-disclaimer-header h3 {
        font-size: 16px;
    }

    .about-disclaimer-text {
        font-size: 14px;
    }

    .about-footer {
        padding-top: 28px;
    }

    .about-version-label,
    .about-version-value {
        font-size: 14px;
    }

    .about-contact-title {
        font-size: 16px;
    }

    .about-contact-link {
        padding: 12px 20px;
        font-size: 14px;
        border-radius: 14px;
        transition: border-color 200ms ease, background 200ms ease, transform 200ms ease;
    }

    .about-contact-link:hover {
        border-color: rgba(255, 107, 53, 0.3);
        background: rgba(255, 107, 53, 0.05);
        transform: translateY(-1px);
    }

    .about-copyright {
        font-size: 12px;
    }
}

@media (min-width: 1200px) {
    .about-page {
        max-width: 1100px;
        padding: 0 40px;
        padding-bottom: 120px;
    }

    .about-hero {
        padding: 56px 60px 48px;
        margin-bottom: 40px;
    }

    .about-logo-img {
        width: 96px;
        height: 96px;
    }

    .about-hero-title {
        font-size: 34px;
    }

    .about-hero-subtitle {
        font-size: 16px;
        max-width: 560px;
    }

    .about-section {
        margin-bottom: 40px;
    }

    .about-section-title {
        font-size: 22px;
    }

    .about-section-desc {
        font-size: 16px;
    }

    .about-features-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .about-feature-card {
        padding: 28px 24px;
    }

    .about-feature-icon {
        font-size: 32px;
    }

    .about-feature-title {
        font-size: 16px;
    }

    .about-feature-desc {
        font-size: 14px;
    }

    .about-principles-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .about-principle-item {
        padding: 20px 24px;
    }

    .about-disclaimer {
        padding: 24px 28px;
    }

    .about-contact-links {
        gap: 16px;
    }

    .about-contact-link {
        padding: 14px 24px;
        font-size: 15px;
    }
}