/* 
 * Main stylesheet for aihongoporn.pw
 * Mobile-first responsive design with modern aesthetics
 */

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

:root {
    --primary-color: #6a11cb;
    --secondary-color: #2575fc;
    --accent-color: #fd5c63;
    --dark-color: #1a1a2e;
    --light-color: #f5f5f7;
    --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --shadow: 0 10px 30px rgba(106, 17, 203, 0.2);
    --radius: 12px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
    overflow-x: hidden;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

h1 {
    font-size: 1.8rem;
}

h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2rem;
}

h2 span {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h3 {
    font-size: 1.3rem;
}

p {
    margin-bottom: 1.5rem;
}

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

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

/* Header */
header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem 0;
}

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

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

.logo-icon {
    width: 40px;
    height: 40px;
    margin-right: 10px;
}

.logo h1 {
    font-size: 1.2rem;
    margin-bottom: 0;
}

nav ul {
    display: flex;
    list-style: none;
}

nav li {
    margin-left: 1.5rem;
}

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

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

nav a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    padding: 4rem 0 2rem;
    background-color: #fff;
    position: relative;
    overflow: hidden;
}

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

.hero-content {
    text-align: center;
    max-width: 700px;
    z-index: 2;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
}

.hero-graphic {
    width: 100%;
    max-width: 500px;
    margin-top: 2rem;
}

/* CTA Buttons */
.cta-button {
    display: inline-block;
    background: var(--gradient);
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(106, 17, 203, 0.3);
    color: white;
}

.cta-button.secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.cta-button.secondary:hover {
    background: var(--gradient);
    color: white;
    border-color: transparent;
}

/* Features Section */
.features {
    padding: 5rem 0;
    background-color: #f5f5f7;
}

.feature-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

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

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
}

/* About Section */
.about {
    padding: 5rem 0;
    background-color: white;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

/* FAQ Section */
.faq {
    padding: 5rem 0;
    background-color: #f5f5f7;
}

.faq-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.faq-item {
    background-color: white;
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

/* Footer */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 3rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.footer-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1rem;
}

.footer-links h3,
.footer-contact h3 {
    color: white;
    margin-bottom: 1.5rem;
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-links a:hover {
    color: white;
}

.footer-contact p {
    color: rgba(255, 255, 255, 0.8);
}

/* Responsive Design */
@media (min-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 2.5rem;
    }
    
    .hero .container {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .hero-content {
        text-align: left;
        max-width: 50%;
    }
    
    .hero h2 {
        font-size: 3rem;
    }
    
    .hero-graphic {
        margin-top: 0;
    }
    
    .feature-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .faq-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr 1fr;
    }
    
    .footer-logo {
        align-items: flex-start;
    }
}

@media (min-width: 992px) {
    .container {
        width: 85%;
    }
}

@media (min-width: 1200px) {
    .container {
        width: 80%;
    }
}

/* Animation for SVG elements */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.feature-icon svg {
    animation: pulse 3s infinite ease-in-out;
}

/* Accessibility */
:focus {
    outline: 3px solid var(--secondary-color);
    outline-offset: 3px;
}