/* White, Black & Red Theme for ChonChat */

:root {
    --primary-red: #DC143C;
    --secondary-red: #B22222;
    --dark-red: #8B0000;
    --white: #ffffff;
    --light-gray: #f5f5f5;
    --border-gray: #e0e0e0;
    --dark-text: #1a1a1a;
    --gray-text: #666666;
    --light-text: #999999;
    --hover-bg: #fff5f5;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 16px rgba(220, 20, 60, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Prompt', 'Kanit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--dark-text);
    background-color: var(--white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Kanit', 'Prompt', sans-serif;
    font-weight: 600;
}

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

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light-gray);
}

::-webkit-scrollbar-thumb {
    background: var(--border-gray);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-red);
}

.navbar {
    background: var(--white);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-gray);
    box-shadow: var(--shadow);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 20px;
    height: 60px;
}

.nav-brand {
    display: flex;
    align-items: center;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--dark-text);
    gap: 10px;
}

.nav-brand i {
    font-size: 1.8rem;
    color: var(--primary-red);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--gray-text);
    font-weight: 400;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: var(--hover-bg);
    color: var(--primary-red);
}

.lang-switcher {
    margin-left: 0.5rem;
}

.lang-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.4rem 0.9rem !important;
    background: var(--primary-red) !important;
    color: var(--white) !important;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.lang-btn:hover {
    background: var(--secondary-red) !important;
    transform: translateY(-1px);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--dark-text);
    border-radius: 2px;
}

.hero {
    margin-top: 60px;
    padding: 100px 0 80px;
    background: linear-gradient(135deg, var(--white) 0%, var(--light-gray) 100%);
    position: relative;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--dark-text);
    font-weight: 600;
    line-height: 1.2;
}

.gradient-text {
    color: var(--primary-red);
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--gray-text);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.phone-mockup {
    text-align: center;
}

.phone-mockup i {
    font-size: 15rem;
    color: var(--primary-red);
    opacity: 0.7;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 2rem;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    border: none;
}

.btn-primary {
    background: var(--primary-red);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--secondary-red);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-red);
    border: 2px solid var(--primary-red);
}

.btn-secondary:hover {
    background: var(--primary-red);
    color: var(--white);
}

.btn-large {
    padding: 0.9rem 2.5rem;
    font-size: 1rem;
}

.features-preview {
    padding: 80px 0;
    background: var(--white);
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 3rem;
    color: var(--dark-text);
    font-weight: 600;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    padding: 2rem;
    background: var(--white);
    border-radius: 12px;
    border: 1px solid var(--border-gray);
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-red);
    box-shadow: var(--shadow-hover);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--secondary-red) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
}

.feature-card h3 {
    margin-bottom: 0.8rem;
    color: var(--dark-text);
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
}

.feature-card p {
    color: var(--gray-text);
    line-height: 1.6;
    text-align: center;
    font-size: 0.95rem;
}

.stats-section {
    padding: 60px 0;
    background: var(--light-gray);
    border-top: 1px solid var(--border-gray);
    border-bottom: 1px solid var(--border-gray);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-number {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--primary-red);
}

.stat-item p {
    font-size: 1rem;
    color: var(--gray-text);
}

.cta-section {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--secondary-red) 100%);
}

.cta-section h2 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    color: var(--white);
    font-weight: 600;
}

.cta-section p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
}

.cta-section .btn-primary {
    background: var(--dark-text);
    color: var(--white);
}

.cta-section .btn-primary:hover {
    background: var(--white);
    color: var(--primary-red);
}

.page-header {
    margin-top: 60px;
    padding: 80px 0;
    background: linear-gradient(135deg, var(--light-gray) 0%, var(--white) 100%);
    text-align: center;
    border-bottom: 1px solid var(--border-gray);
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--dark-text);
    font-weight: 600;
}

.page-header p {
    font-size: 1.2rem;
    color: var(--gray-text);
}

.features-detailed {
    padding: 80px 0;
    background: var(--white);
}

.feature-detail {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
    align-items: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 12px;
    border: 1px solid var(--border-gray);
    box-shadow: var(--shadow);
}

.feature-detail.reverse {
    grid-template-columns: 1fr 140px;
}

.feature-detail.reverse .feature-detail-icon {
    order: 2;
}

.feature-detail.reverse .feature-detail-content {
    order: 1;
}

.feature-detail-icon {
    width: 140px;
    height: 140px;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--secondary-red) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 4rem;
}

.feature-detail-content h2 {
    margin-bottom: 1rem;
    color: var(--dark-text);
    font-weight: 600;
}

.feature-detail-content p {
    margin-bottom: 1.5rem;
    color: var(--gray-text);
    line-height: 1.8;
}

.feature-detail-content ul {
    list-style: none;
}

.feature-detail-content ul li {
    padding: 0.5rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--gray-text);
}

.feature-detail-content ul li::before {
    content: '?';
    position: absolute;
    left: 0;
    color: var(--primary-red);
    font-weight: bold;
}

.download-section {
    padding: 80px 0;
    background: var(--light-gray);
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.download-card {
    padding: 2.5rem;
    background: var(--white);
    border-radius: 12px;
    border: 1px solid var(--border-gray);
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.download-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-red);
    box-shadow: var(--shadow-hover);
}

.download-icon {
    font-size: 4.5rem;
    color: var(--primary-red);
    margin-bottom: 1.5rem;
}

.download-card h3 {
    margin-bottom: 1rem;
    color: var(--dark-text);
    font-weight: 600;
}

.download-card p {
    color: var(--gray-text);
    margin-bottom: 1.5rem;
}

.version {
    display: block;
    margin-top: 1rem;
    color: var(--light-text);
    font-size: 0.85rem;
}

.requirements-section {
    padding: 60px 0;
    background: var(--white);
    border-top: 1px solid var(--border-gray);
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.requirement-item {
    padding: 2rem;
    background: var(--light-gray);
    border-radius: 12px;
    border: 1px solid var(--border-gray);
}

.requirement-item h4 {
    margin-bottom: 1rem;
    color: var(--primary-red);
    font-size: 1.2rem;
    font-weight: 600;
}

.requirement-item ul {
    list-style: none;
}

.requirement-item li {
    padding: 0.5rem 0;
    color: var(--gray-text);
    padding-left: 1.5rem;
    position: relative;
}

.requirement-item li::before {
    content: '�';
    position: absolute;
    left: 0;
    color: var(--primary-red);
}

.about-content {
    padding: 80px 0;
    background: var(--white);
}

.about-story {
    max-width: 900px;
    margin: 0 auto 4rem;
    text-align: center;
}

.about-story h2 {
    font-size: 2.2rem;
    margin-bottom: 2rem;
    color: var(--dark-text);
    font-weight: 600;
}

.about-story p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--gray-text);
    margin-bottom: 1.5rem;
}

.mission-vision {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.mission-item {
    padding: 2rem;
    text-align: center;
    background: var(--white);
    border-radius: 12px;
    border: 1px solid var(--border-gray);
    box-shadow: var(--shadow);
}

.icon-circle {
    width: 90px;
    height: 90px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--secondary-red) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2.2rem;
}

.mission-item h3 {
    margin-bottom: 1rem;
    color: var(--dark-text);
    font-weight: 600;
}

.mission-item p {
    color: var(--gray-text);
    line-height: 1.6;
}

.team-section {
    margin: 4rem 0;
}

.text-center {
    text-align: center;
    color: var(--gray-text);
    margin-bottom: 3rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.team-member {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 12px;
    border: 1px solid var(--border-gray);
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.team-member:hover {
    transform: translateY(-5px);
    border-color: var(--primary-red);
    box-shadow: var(--shadow-hover);
}

.team-avatar {
    width: 100px;
    height: 100px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--secondary-red) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2.5rem;
}

.team-member h4 {
    margin-bottom: 0.5rem;
    color: var(--dark-text);
    font-weight: 600;
}

.role {
    color: var(--primary-red);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.team-social {
    display: flex;
    gap: 0.8rem;
    justify-content: center;
}

.team-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-gray);
    border-radius: 50%;
    color: var(--gray-text);
    transition: all 0.2s ease;
    border: 1px solid var(--border-gray);
}

.team-social a:hover {
    background: var(--primary-red);
    color: var(--white);
    border-color: var(--primary-red);
}

.contact-section {
    margin-top: 4rem;
    padding: 3rem 2rem;
    background: var(--light-gray);
    border-radius: 12px;
    border: 1px solid var(--border-gray);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 2rem auto 0;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--white);
    border-radius: 10px;
    border: 1px solid var(--border-gray);
}

.contact-item i {
    font-size: 2rem;
    color: var(--primary-red);
}

.contact-item h4 {
    margin-bottom: 0.5rem;
    color: var(--dark-text);
    font-weight: 600;
}

.contact-item p {
    color: var(--gray-text);
}

.footer {
    background: var(--dark-text);
    color: var(--white);
    padding: 3rem 0 1rem;
    border-top: 1px solid var(--border-gray);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--white);
    font-weight: 600;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--white);
    font-weight: 600;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-section a:hover {
    color: var(--primary-red);
}

.social-links {
    display: flex;
    gap: 0.8rem;
}

.social-links a {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.2s ease;
    color: var(--white);
}

.social-links a:hover {
    background: var(--primary-red);
    border-color: var(--primary-red);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 60px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        border-bottom: 1px solid var(--border-gray);
        box-shadow: var(--shadow);
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1.05rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .phone-mockup i {
        font-size: 10rem;
    }

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

    .feature-detail {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .feature-detail.reverse {
        grid-template-columns: 1fr;
    }

    .feature-detail-icon {
        margin: 0 auto;
    }

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

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }

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

/* Privacy Policy Page */
.privacy-page {
    min-height: 100vh;
    background: var(--dark-bg);
}

.privacy-header {
    text-align: center;
    padding: 100px 20px 40px;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
}

.privacy-header h1 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 700;
}

.update-date {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.privacy-content {
    padding: 80px 0;
    background: var(--dark-bg);
}

.privacy-sections {
    max-width: 900px;
    margin: 0 auto;
}

.privacy-section {
    margin-bottom: 3rem;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.privacy-section h2 {
    font-size: 1.8rem;
    color: var(--primary-red);
    margin-bottom: 1.5rem;
    font-weight: 600;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

.privacy-section h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin: 1.5rem 0 1rem;
    font-weight: 600;
}

.privacy-section p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.privacy-section strong {
    color: var(--text-primary);
    font-weight: 600;
}

.privacy-section ul {
    list-style: none;
    padding-left: 0;
}

.privacy-section ul li {
    padding: 0.5rem 0 0.5rem 2rem;
    color: var(--text-secondary);
    line-height: 1.6;
    position: relative;
}

.privacy-section ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-red);
    font-weight: bold;
    font-size: 1.2rem;
}

.contact-details {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: var(--dark-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.contact-details p {
    margin: 0.8rem 0;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-details i {
    color: var(--primary-red);
    font-size: 1.2rem;
    width: 20px;
}

.consent-section {
    background: var(--dark-bg);
    color: var(--text-primary);
    border: 2px solid var(--primary-red);
}

.consent-section h2 {
    color: var(--primary-red);
    border-bottom-color: var(--border-color);
}

.consent-section p {
    color: var(--text-primary);
}

/* Language Switcher */
.language-switcher {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.lang-btn {
    padding: 0.4rem 0.8rem;
    background: transparent;
    border: 1px solid var(--border-gray);
    border-radius: 6px;
    color: var(--gray-text);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    font-weight: 500;
}

.lang-btn:hover {
    background: var(--hover-bg);
    border-color: var(--primary-red);
    color: var(--primary-red);
}

.lang-btn.active {
    background: var(--primary-red);
    border-color: var(--primary-red);
    color: var(--white);
}

.lang-separator {
    color: var(--border-gray);
    font-size: 0.9rem;
}

/* Update navbar for language switcher */
.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 20px;
    height: 60px;
    gap: 1rem;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 2rem;
}

@media (max-width: 768px) {
    .language-switcher {
        order: 1;
    }

    .nav-menu {
        order: 2;
    }

    .hamburger {
        order: 3;
    }

    .nav-right {
        gap: 1rem;
    }

    .privacy-section {
        padding: 1.5rem;
    }

    .privacy-section h2 {
        font-size: 1.5rem;
    }
}