/*
 * character-ai.site - Main Stylesheet
 * A modern, responsive design with green color scheme
 */

:root {
    --color-primary: #4CAF50;
    --color-primary-light: #A5D6A7;
    --color-primary-dark: #2E7D32;
    --color-accent: #FF9800;
    --color-bg: #FFFFFF;
    --color-bg-alt: #F5F5F5;
    --color-bg-light: #E8F5E9;
    --color-text: #212121;
    --color-text-light: #757575;
    --color-white: #FFFFFF;
    --radius: 8px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-large: 0 10px 20px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

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

body {
    font-family: 'Lato', sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.section-title {
    text-align: center;
    margin-bottom: 2.5rem;
    font-weight: 900;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--color-primary);
    margin: 15px auto 0;
    border-radius: 2px;
}

p {
    margin-bottom: 1.2rem;
}

/* Header */
.header {
    background: var(--color-bg);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

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

.header__logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-text {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin: 0;
    font-weight: 700;
}

.logo-icon {
    width: 32px;
    height: 32px;
}

/* Navigation */
.nav__menu {
    display: flex;
    gap: 2rem;
}

.nav__menu a {
    color: var(--color-text);
    font-weight: 700;
    padding: 0.5rem 0;
    position: relative;
}

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

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

.nav__menu a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    height: 24px;
    width: 30px;
    position: relative;
    z-index: 1010;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--color-primary);
    margin: 5px 0;
    border-radius: 3px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 9rem 0 5rem;
    background: linear-gradient(to bottom right, var(--color-bg-light) 0%, var(--color-bg) 100%);
    overflow: hidden;
}

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

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

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

.hero__subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--color-text-light);
    max-width: 90%;
}

.button {
    display: inline-block;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-weight: 700;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.button:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

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

.hero__visual {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.visual-container {
    max-width: 100%;
    height: auto;
}

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

.tech-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
}

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

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

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

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

.tech-card p {
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* Characters Section */
.characters {
    padding: 5rem 0;
    background-color: var(--color-bg-alt);
    position: relative;
    overflow: hidden;
}

.characters::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background-color: var(--color-primary-light);
    opacity: 0.1;
    top: -100px;
    left: -100px;
    z-index: 0;
}

.characters::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background-color: var(--color-primary-light);
    opacity: 0.1;
    bottom: -50px;
    right: -50px;
    z-index: 0;
}

.character-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.character-item {
    background: var(--color-bg);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    border-top: 4px solid var(--color-primary);
}

.character-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-large);
}

.character-number {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--color-primary-light);
}

.character-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--color-primary-dark);
}

.character-item p {
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* Creation Section */
.creation {
    padding: 5rem 0;
    background-color: var(--color-bg);
}

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

.creation-text {
    padding-right: 2rem;
}

.creation-text .section-title {
    text-align: left;
}

.creation-text .section-title::after {
    margin-left: 0;
}

.steps {
    margin-bottom: 2rem;
}

.step {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.step-marker {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-weight: 700;
    margin-right: 1rem;
    flex-shrink: 0;
}

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

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

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

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

.cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

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

.cta .button:hover {
    background-color: var(--color-bg-alt);
    color: var(--color-primary-dark);
}

/* Footer */
.footer {
    background-color: var(--color-text);
    color: var(--color-white);
    padding: 4rem 0 1rem;
}

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

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-logo span {
    font-size: 1.2rem;
    font-weight: 700;
}

.footer-tagline {
    color: var(--color-bg-alt);
    opacity: 0.7;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.link-group h3 {
    color: var(--color-primary-light);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.link-group ul {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.link-group ul li a {
    color: var(--color-white);
    opacity: 0.7;
    transition: var(--transition);
}

.link-group ul li a:hover {
    opacity: 1;
    color: var(--color-primary-light);
}

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

.footer-bottom p {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: 0;
}

/* Responsive Design */
@media (max-width: 991px) {
    .hero__title {
        font-size: 2.5rem;
    }
    
    .creation-content {
        grid-template-columns: 1fr;
    }
    
    .creation-text {
        order: 1;
        padding-right: 0;
    }
    
    .creation-visual {
        order: 0;
        margin-bottom: 2rem;
    }
}

@media (max-width: 768px) {
    .hero .container,
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .hero__visual {
        order: -1;
        margin-bottom: 2rem;
        justify-content: center;
    }
    
    .tech-cards,
    .character-grid {
        grid-template-columns: 1fr;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--color-bg);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        z-index: 1000;
        padding: 5rem 2rem;
    }
    
    .nav__menu.active {
        right: 0;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
}

@media (max-width: 576px) {
    .section-title,
    .hero__title,
    .cta h2 {
        font-size: 2rem;
    }
    
    .tech-card,
    .character-item {
        padding: 1.5rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}