/* 
   aipornpmv.site - Modern Style with Teal/Mint Theme
   Created: July 2025
   SEO and Mobile Optimized
*/

:root {
    --primary: #20C997;
    --primary-light: #E3FFF7;
    --primary-dark: #0CA678;
    --accent: #FF4D6D;
    --dark: #121212;
    --gray: #6C757D;
    --light-gray: #F8F9FA;
    --white: #FFFFFF;
    --border-radius: 10px;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --transition: all 0.25s ease-in-out;
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.7;
    color: var(--dark);
    background-color: var(--white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2.25rem;
    margin-bottom: 2rem;
    text-align: center;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1.5rem;
}

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

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    font-size: 1rem;
    border: none;
}

.primary-btn {
    background-color: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(32, 201, 151, 0.3);
}

.primary-btn:hover {
    background-color: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(32, 201, 151, 0.4);
}

/* Header */
header {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    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;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--dark);
}

.logo svg {
    margin-right: 0.75rem;
}

.logo span {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

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

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary);
    transition: var(--transition);
}

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

#menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: 500;
    color: var(--dark);
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary-light), #FFFFFF);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 50%;
    height: 120%;
    top: -10%;
    right: -5%;
    background: radial-gradient(circle at center, rgba(32, 201, 151, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
    border-radius: 50%;
}

.hero-content {
    max-width: 600px;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--dark);
    position: relative;
}

.hero h1::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 80px;
    height: 4px;
    background-color: var(--primary);
    border-radius: 2px;
}

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

/* Features Section */
.features {
    padding: 6rem 0;
    background-color: var(--white);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark);
}

.feature-card p {
    color: var(--gray);
    font-size: 1.1rem;
    margin-bottom: 0;
}

/* How It Works Section */
.how-it-works {
    padding: 6rem 0;
    background-color: var(--light-gray);
    position: relative;
    overflow: hidden;
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin: 3rem 0;
}

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

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

.step-content {
    flex-grow: 1;
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

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

.step-content p {
    color: var(--gray);
    margin-bottom: 0;
}

.cta {
    text-align: center;
    margin-top: 3rem;
}

/* FAQ Section */
.faq {
    padding: 6rem 0;
    background-color: var(--white);
}

.faq-items {
    margin-top: 3rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

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

.faq-item h3 {
    color: var(--dark);
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    position: relative;
    padding-left: 1.5rem;
}

.faq-item h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.5rem;
    width: 8px;
    height: 8px;
    background-color: var(--primary);
    border-radius: 50%;
}

.faq-item p {
    color: var(--gray);
    margin-bottom: 0;
}

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

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 2rem;
    margin-bottom: 3rem;
}

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

.footer-logo svg {
    margin-bottom: 1rem;
}

.footer-logo p {
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 0;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 3rem;
}

.link-column h4 {
    font-size: 1.1rem;
    color: var(--white);
    margin-bottom: 1.5rem;
}

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

.link-column li {
    margin-bottom: 0.75rem;
}

.link-column a {
    color: var(--gray);
    transition: var(--transition);
}

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

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

/* Responsive Styles */
@media (max-width: 992px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .hero {
        padding: 4rem 0;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.25rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    #menu-toggle {
        display: block;
    }
    
    nav ul {
        position: fixed;
        flex-direction: column;
        background-color: var(--white);
        top: 70px;
        left: 0;
        width: 100%;
        height: 0;
        overflow: hidden;
        transition: var(--transition);
        opacity: 0;
        visibility: hidden;
        gap: 0;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    }
    
    nav ul.active {
        height: auto;
        opacity: 1;
        visibility: visible;
        padding: 1rem 0;
    }
    
    nav ul li {
        width: 100%;
    }
    
    nav ul a {
        display: block;
        padding: 1rem 2rem;
    }
    
    nav ul a:hover::after {
        width: 0;
    }
    
    .step {
        flex-direction: column;
        gap: 1rem;
    }
    
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
        width: 100%;
    }
    
    .link-column {
        width: 160px;
        text-align: left;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .faq-items {
        grid-template-columns: 1fr;
    }
    
    section {
        padding: 3rem 0;
    }
}