/* 
 * Main CSS for nudifyaiporn.site
 * Modern, responsive design with red/dark theme
 */

/* Variables */
:root {
    --primary: #FF6B6B;
    --primary-light: #ff8c8c;
    --primary-dark: #e65c5c;
    --secondary: #556270;
    --secondary-light: #697a8d;
    --secondary-dark: #2C3E50;
    --dark: #1A2530;
    --light: #f8f9fa;
    --grey: #ededed;
    --text-dark: #333333;
    --text-light: #6c757d;
    --white: #FFFFFF;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --shadow-sm: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-md: 0 5px 15px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--light);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

p {
    margin-bottom: 1rem;
}

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

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

/* Header Styles */
header {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-icon {
    width: 40px;
    height: 40px;
}

.brand h1 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary);
    margin: 0;
}

/* Navigation */
.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-dark);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--primary);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary);
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.hamburger {
    width: 24px;
    height: 24px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-dark);
    transition: var(--transition);
}

.menu-toggle.active .hamburger span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.menu-toggle.active .hamburger span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active .hamburger span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--secondary-light) 0%, var(--secondary-dark) 100%);
    color: var(--white);
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

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

.hero-content {
    z-index: 2;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.highlight {
    color: var(--primary);
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    color: var(--grey);
}

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

.hero-visual {
    position: relative;
    z-index: 1;
}

.hero-svg {
    width: 100%;
    height: auto;
    max-height: 400px;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--white);
    color: var(--white);
}

.btn-outline:hover {
    background-color: var(--white);
    color: var(--secondary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Features Section */
.features {
    padding: 5rem 0;
    background-color: var(--white);
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.section-header h2 {
    margin-bottom: 1rem;
    color: var(--secondary-dark);
}

.section-header p {
    color: var(--text-light);
    font-size: 1.1rem;
}

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

.feature-card {
    background-color: var(--light);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--secondary-dark);
}

.feature-card p {
    color: var(--text-light);
}

/* How It Works Section */
.how-it-works {
    padding: 5rem 0;
    background-color: var(--secondary-dark);
    color: var(--white);
}

.how-it-works .section-header h2 {
    color: var(--white);
}

.how-it-works .section-header p {
    color: var(--grey);
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background-color: var(--primary);
    color: var(--white);
    font-weight: 700;
    font-size: 1.5rem;
    border-radius: 50%;
    flex-shrink: 0;
}

.step-content h3 {
    color: var(--primary-light);
    margin-bottom: 0.5rem;
}

.step-content p {
    color: var(--grey);
}

.process-visual {
    margin-top: 3rem;
    width: 100%;
    height: auto;
    max-height: 200px;
}

/* Testimonials Section */
.testimonials {
    padding: 5rem 0;
    background-color: var(--light);
}

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

.testimonial-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.rating {
    color: var(--primary);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.testimonial-card p {
    margin-bottom: 1.5rem;
    font-style: italic;
}

.user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--secondary-light);
}

.user p {
    margin: 0;
    font-weight: 600;
    font-style: normal;
}

/* CTA Section */
.cta {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    text-align: center;
}

.cta h2 {
    margin-bottom: 1rem;
    color: var(--white);
}

.cta p {
    max-width: 600px;
    margin: 0 auto 2rem;
    color: rgba(255, 255, 255, 0.9);
}

/* Footer Styles */
footer {
    background-color: var(--dark);
    color: var(--grey);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    max-width: 300px;
}

.footer-icon {
    margin-bottom: 1rem;
    width: 64px;
    height: 64px;
}

.footer-brand h3 {
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--grey);
}

.footer-links {
    display: flex;
    gap: 4rem;
}

.link-group h4 {
    color: var(--white);
    margin-bottom: 1.5rem;
}

.link-group ul {
    list-style: none;
}

.link-group li:not(:last-child) {
    margin-bottom: 0.75rem;
}

.link-group a {
    color: var(--grey);
    transition: var(--transition);
}

.link-group a:hover {
    color: var(--primary);
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
}

/* Responsive Styles */
@media screen and (max-width: 992px) {
    .hero-content h2 {
        font-size: 2.5rem;
    }
}

@media screen and (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .hero-visual {
        display: none;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--white);
        flex-direction: column;
        gap: 0;
        padding: 1rem 0;
        box-shadow: var(--shadow-sm);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .nav-links li {
        width: 100%;
    }
    
    .nav-links a {
        display: block;
        padding: 1rem 2rem;
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .step {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .step-number {
        margin: 0 auto;
    }
}

@media screen and (max-width: 576px) {
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .feature-grid,
    .testimonial-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 2rem;
    }
    
    .process-visual {
        display: none;
    }
}