/* 
 * AINudeGeneratorTH.site Stylesheet
 * ธีมสีแบบประเทศไทย: แดง #EC1F27, น้ำเงิน #022492, ขาว #FFFFFF
 */

/* Reset พื้นฐาน */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-primary: #EC1F27;    /* แดงไทย */
    --color-secondary: #022492;  /* น้ำเงินไทย */
    --color-light: #FFFFFF;      /* ขาว */
    --color-dark: #333333;       /* ข้อความสีเข้ม */
    --color-gray: #F5F5F5;       /* พื้นหลังสีอ่อน */
    --color-gray-dark: #DDDDDD;  /* ขอบ */
    --font-primary: 'Sarabun', sans-serif;  /* ฟอนต์ไทย */
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-light);
    overflow-x: hidden;
}

.wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--color-secondary);
}

ul {
    list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--color-secondary);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 15px;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 15px;
    color: var(--color-secondary);
}

.section-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
}

/* Buttons */
.button {
    display: inline-block;
    background-color: var(--color-primary);
    color: var(--color-light);
    padding: 12px 25px;
    border-radius: var(--radius);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
}

.button:hover {
    background-color: var(--color-secondary);
    color: var(--color-light);
    transform: translateY(-2px);
    box-shadow: 0 7px 20px rgba(0, 0, 0, 0.15);
}

/* Header */
.header {
    position: fixed;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(5px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 12px 0;
    transition: var(--transition);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    height: 40px;
    width: auto;
}

.logo-text {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-primary);
}

.nav-list {
    display: flex;
    gap: 20px;
}

.nav-link {
    font-weight: 600;
    color: var(--color-dark);
    padding: 5px 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
    left: 0;
    bottom: -2px;
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.burger {
    display: none;
    cursor: pointer;
    background: none;
    border: none;
    width: 35px;
    height: 30px;
    position: relative;
    z-index: 1010;
}

.burger-line {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--color-primary);
    margin: 6px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 140px 0 70px;
    background: linear-gradient(135deg, rgba(236, 31, 39, 0.05), rgba(2, 36, 146, 0.05));
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
}

.hero-content {
    flex: 1;
}

.hero-title {
    margin-bottom: 15px;
    font-size: 2.5rem;
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.hero-subtitle {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: 20px;
}

.hero-text {
    font-size: 1.1rem;
    margin-bottom: 30px;
    max-width: 600px;
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

/* Features Section */
.features {
    padding: 70px 0;
    background-color: var(--color-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--color-light);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    border-top: 4px solid var(--color-primary);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.feature-card:nth-child(2n) {
    border-top-color: var(--color-secondary);
}

.feature-icon {
    margin-bottom: 20px;
}

.feature-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--color-primary);
}

/* How To Use Section */
.how-to {
    padding: 70px 0;
    background-color: var(--color-gray);
}

.steps {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
}

.step-card {
    background-color: var(--color-light);
    border-radius: var(--radius);
    padding: 40px 25px 25px;
    box-shadow: var(--shadow);
    flex: 1;
    min-width: 200px;
    max-width: 300px;
    position: relative;
}

.step-number {
    position: absolute;
    top: -15px;
    left: 25px;
    width: 30px;
    height: 30px;
    background-color: var(--color-primary);
    color: var(--color-light);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
}

.step-title {
    color: var(--color-secondary);
}

.cta-center {
    text-align: center;
    margin-top: 20px;
}

/* Testimonials */
.testimonials {
    padding: 70px 0;
    background-color: var(--color-light);
}

.testimonials-slider {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
    height: 180px;
}

.testimonial {
    position: absolute;
    width: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
    padding: 20px;
}

.testimonial.active {
    opacity: 1;
    z-index: 2;
}

.testimonial-content {
    background-color: var(--color-light);
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow);
    position: relative;
    border-left: 4px solid var(--color-primary);
}

.testimonial-text {
    font-size: 1.1rem;
    font-style: italic;
    margin-bottom: 15px;
}

.testimonial-author {
    font-weight: 600;
    color: var(--color-secondary);
    text-align: right;
}

.testimonials-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--color-gray-dark);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background-color: var(--color-primary);
}

/* FAQ Section */
.faq {
    padding: 70px 0;
    background-color: var(--color-gray);
}

.accordion {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    margin-bottom: 15px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.accordion-header {
    padding: 15px;
    background-color: var(--color-light);
    cursor: pointer;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.accordion-header::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--color-primary);
}

.accordion-item.active .accordion-header {
    color: var(--color-secondary);
}

.accordion-item.active .accordion-header::after {
    content: '−';
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background-color: var(--color-light);
}

.accordion-item.active .accordion-content {
    max-height: 300px;
}

.accordion-content p {
    padding: 0 15px 15px;
}

/* Final CTA Section */
.final-cta {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-light);
    text-align: center;
}

.final-cta-title {
    color: var(--color-light);
    font-size: 2.2rem;
    margin-bottom: 15px;
}

.final-cta-text {
    max-width: 700px;
    margin: 0 auto 30px;
    font-size: 1.1rem;
}

.cta-button {
    background-color: var(--color-light);
    color: var(--color-primary);
    padding: 15px 40px;
    font-size: 1.1rem;
}

.cta-button:hover {
    background-color: var(--color-secondary);
    color: var(--color-light);
}

/* Footer */
.footer {
    background-color: #111;
    color: var(--color-light);
    padding: 50px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 30px;
}

.footer-branding {
    flex: 1;
    min-width: 250px;
    display: flex;
    gap: 15px;
}

.footer-title {
    color: var(--color-light);
    margin-bottom: 10px;
}

.footer-description {
    opacity: 0.7;
}

.footer-links {
    display: flex;
    gap: 40px;
}

.footer-heading {
    color: var(--color-primary);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.footer-menu {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-link {
    color: var(--color-light);
    opacity: 0.7;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--color-primary);
    opacity: 1;
}

.footer-copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.6;
    font-size: 0.9rem;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .nav {
        display: none;
    }
    
    .burger {
        display: block;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
    }
}

@media (max-width: 576px) {
    .container {
        width: 100%;
    }
    
    .hero {
        padding: 120px 0 50px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .steps {
        flex-direction: column;
        align-items: center;
    }
    
    .step-card {
        width: 100%;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 20px;
    }
}