/* 
 * Main stylesheet for aipornvideocreator.site
 * Features a teal/dark color scheme with tech-inspired design elements
 */

:root {
    --primary: #2DD4BF;
    --primary-dark: #0F766E;
    --primary-light: #5EEAD4;
    --dark: #0F172A;
    --darker: #020617;
    --light: #F8FAFC;
    --gray: #64748B;
    --gray-light: #CBD5E1;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

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

body {
    font-family: 'Poppins', 'Segoe UI', sans-serif;
    background-color: var(--light);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    letter-spacing: -0.025em;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    position: relative;
    text-align: center;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1.5rem;
    color: var(--gray);
}

.highlight {
    color: var(--primary);
    position: relative;
    z-index: 1;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: -2px;
    right: -2px;
    height: 30%;
    background-color: var(--primary);
    opacity: 0.1;
    z-index: -1;
    border-radius: 4px;
}

/* Links and buttons */
a {
    text-decoration: none;
    color: var(--primary);
    transition: var(--transition);
}

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

.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--dark);
    box-shadow: 0 4px 15px rgba(45, 212, 191, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(45, 212, 191, 0.4);
    color: var(--dark);
    background-color: var(--primary-light);
}

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

.btn-secondary:hover {
    background-color: var(--primary);
    color: var(--dark);
    transform: translateY(-3px);
}

.large {
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
    border-radius: 10px;
}

.pulse {
    animation: pulse 2s infinite;
    box-shadow: 0 0 0 rgba(45, 212, 191, 0.4);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.4);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(45, 212, 191, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(45, 212, 191, 0);
    }
}

/* Header */
header {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem 0;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(203, 213, 225, 0.3);
}

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

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

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

nav ul {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

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

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

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

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

.nav-cta {
    background: var(--primary);
    color: var(--dark) !important;
    padding: 0.5rem 1.25rem;
    border-radius: 8px;
    font-weight: 600;
    box-shadow: 0 2px 10px rgba(45, 212, 191, 0.2);
}

.nav-cta:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(45, 212, 191, 0.3);
}

.nav-cta::after {
    display: none;
}

.hamburger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    height: 24px;
    width: 30px;
    cursor: pointer;
}

.hamburger-menu .bar {
    width: 100%;
    height: 3px;
    background-color: var(--primary);
    border-radius: 3px;
    transition: var(--transition);
}

/* Hero section */
.hero {
    padding: 6rem 0 5rem;
    position: relative;
    background-color: var(--light);
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: -10%;
    right: -10%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(45, 212, 191, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

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

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

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

/* Features section */
.features {
    padding: 6rem 0;
    background-color: var(--light);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--gray-light), transparent);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    margin-top: 4rem;
}

.feature-card {
    background-color: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    border: 1px solid var(--gray-light);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    border-color: var(--primary-light);
}

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

/* How it works section */
.how-it-works {
    padding: 6rem 0;
    background-color: var(--dark);
    color: white;
    position: relative;
}

.how-it-works h2 {
    color: white;
}

.steps {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    margin: 4rem 0;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 250px;
    text-align: center;
    position: relative;
}

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

.step h3 {
    color: white;
    margin-bottom: 1rem;
}

.step p {
    color: var(--gray-light);
}

.tech-visual {
    width: 100%;
    overflow-x: hidden;
    margin-top: 3rem;
}

/* Samples section */
.samples {
    padding: 6rem 0;
    background-color: var(--light);
    position: relative;
}

.samples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.sample-card {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--gray-light);
}

.sample-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.sample-placeholder {
    width: 100%;
    height: 200px;
    background-color: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
}

.sample-card h3 {
    padding: 1.5rem 1.5rem 0.5rem;
}

.sample-card p {
    padding: 0 1.5rem 1.5rem;
}

/* Creator section */
.creator {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--dark), var(--darker));
    color: white;
    text-align: center;
}

.creator h2 {
    color: white;
}

.creator-description {
    color: var(--gray-light);
    max-width: 700px;
    margin: 0 auto 3rem;
    font-size: 1.2rem;
}

.creator-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.creator-note {
    color: var(--gray-light);
    font-size: 0.95rem;
}

/* Footer */
footer {
    background-color: var(--darker);
    color: var(--gray-light);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-favicon {
    margin-top: 0.5rem;
}

.footer-links h4 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    position: relative;
}

.footer-links h4::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary);
}

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

.footer-links ul li {
    margin-bottom: 0.75rem;
}

.footer-links ul li a {
    color: var(--gray-light);
}

.footer-links ul li a:hover {
    color: var(--primary);
}

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

.footer-bottom p + p {
    margin-top: 0.5rem;
    opacity: 0.8;
}

/* Back to top button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary);
    color: var(--dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    border: none;
    box-shadow: 0 5px 15px rgba(45, 212, 191, 0.3);
    z-index: 99;
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--primary-light);
    transform: translateY(-3px);
}

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

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

/* Responsive design */
@media (max-width: 992px) {
    h1 {
        font-size: 2.8rem;
    }
    
    h2 {
        font-size: 2.2rem;
    }
    
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .steps {
        flex-direction: column;
    }
    
    .step {
        margin-bottom: 2rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .hamburger-menu {
        display: flex;
        z-index: 200;
    }
    
    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: white;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: var(--transition);
        padding: 5rem 2rem 2rem;
        z-index: 100;
    }
    
    nav.active {
        right: 0;
    }
    
    nav ul {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .features-grid,
    .samples-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-cta {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
    }
}