/* 
   Main Stylesheet for aiporngf.site
   Created: July 2025
*/

/* ===== Base Styles ===== */
:root {
    /* Color palette - different from previous website */
    --primary-color: #9c27b0;
    --secondary-color: #673ab7;
    --accent-color: #e1bee7;
    --dark-color: #212121;
    --light-color: #f5f5f5;
    --text-color: #424242;
    --background-color: #ffffff;
}

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&family=Roboto:wght@300;400;500;700&display=swap');

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

body {
    font-family: 'Roboto', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 1rem;
    line-height: 1.3;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color 0.3s ease;
}

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

ul {
    list-style: none;
}

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

.section-title {
    text-align: center;
    margin-bottom: 0.5rem;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.section-subtitle {
    text-align: center;
    margin-bottom: 3rem;
    opacity: 0.8;
}

/* ===== Navbar ===== */
.navbar {
    background-color: var(--background-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

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

.logo {
    max-height: 40px;
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-menu li {
    margin-left: 2rem;
}

.nav-link {
    color: var(--dark-color);
    font-weight: 500;
    font-size: 1rem;
    padding: 0.5rem 0;
    position: relative;
}

.nav-link:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

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

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

.menu-toggle .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px 0;
    background-color: var(--dark-color);
    transition: all 0.3s ease;
}

/* ===== Hero Section ===== */
.hero {
    padding: 5rem 0;
    position: relative;
    background: linear-gradient(135deg, rgba(156, 39, 176, 0.05) 0%, rgba(103, 58, 183, 0.05) 100%);
    overflow: hidden;
}

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

.hero-content {
    flex: 1;
    max-width: 600px;
    padding-right: 2rem;
}

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

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

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

.hero .subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.8;
}

.cta-button {
    margin-top: 2rem;
}

.primary-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(156, 39, 176, 0.3);
}

.primary-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(156, 39, 176, 0.4);
    color: white;
}

.primary-button.large {
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
}

.arrow {
    display: inline-block;
    transition: transform 0.3s ease;
}

.primary-button:hover .arrow {
    transform: translateX(5px);
}

/* ===== Features Section ===== */
.features {
    padding: 5rem 0;
    text-align: center;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.feature-card {
    background-color: white;
    border-radius: 15px;
    padding: 2.5rem 1.5rem;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    margin: 0 auto 1.5rem;
    width: 80px;
    height: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
}

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

/* ===== Technology Section ===== */
.technology {
    padding: 5rem 0;
    background-color: var(--light-color);
}

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

.tech-content {
    flex: 1;
    max-width: 600px;
    padding-right: 2rem;
}

.tech-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.tech-list {
    margin: 1.5rem 0 2rem;
}

.tech-list li {
    margin-bottom: 1rem;
    position: relative;
    padding-left: 1.5rem;
}

.tech-list li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.tech-highlight {
    font-weight: 500;
    color: var(--primary-color);
}

.secondary-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: transparent;
    color: var(--primary-color);
    font-weight: 600;
    border: 2px solid var(--primary-color);
    border-radius: 50px;
    transition: all 0.3s ease;
}

.secondary-button:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(156, 39, 176, 0.2);
}

/* ===== FAQ Section ===== */
.faq {
    padding: 5rem 0;
}

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

.faq-item {
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    background-color: white;
    cursor: pointer;
    font-weight: 500;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question:after {
    content: '+';
    font-size: 1.2rem;
    color: var(--primary-color);
}

.faq-item.active .faq-question:after {
    content: '−';
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 1.5rem 1.5rem;
}

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

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    color: white;
    margin-bottom: 1.5rem;
}

.cta-content p {
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* ===== Footer ===== */
.footer {
    background-color: var(--dark-color);
    color: var(--light-color);
    padding: 4rem 0 1.5rem;
}

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

.footer-brand {
    margin-bottom: 2rem;
    max-width: 300px;
}

.footer-tagline {
    margin-top: 0.5rem;
    opacity: 0.7;
}

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

.footer-column h4 {
    color: white;
    margin-bottom: 1.2rem;
    font-size: 1.1rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-column h4:after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-column ul li {
    margin-bottom: 0.8rem;
}

.footer-column ul li a {
    color: var(--light-color);
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.footer-column ul li a:hover {
    opacity: 1;
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
    font-size: 0.9rem;
}

/* ===== Media Queries ===== */
@media (max-width: 992px) {
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .hero-content, .tech-content {
        padding-right: 0;
        max-width: 100%;
        margin-bottom: 2rem;
    }
    
    .hero .container, .technology .container {
        flex-direction: column;
    }
    
    .hero-visual, .tech-visual {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 1.5rem 0;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .menu-toggle.active .bar:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .menu-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active .bar:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .footer-links {
        margin-top: 2rem;
        width: 100%;
        justify-content: space-between;
    }
}

@media (max-width: 576px) {
    .footer-links {
        flex-direction: column;
        gap: 2rem;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .hero, .features, .technology, .faq, .cta-section {
        padding: 3rem 0;
    }
}