/* Base Styles */
:root {
    --primary-color: #8c1aff;
    --secondary-color: #ff1a8c;
    --accent-color: #1aff8c;
    --dark-color: #121212;
    --light-dark-color: #1e1e1e;
    --medium-dark-color: #2a2a2a;
    --light-color: #f0f0f0;
    --gray-color: #888;
    --success-color: #00c853;
    --error-color: #ff1744;
    --warning-color: #ffab00;
}

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

/* Remove focus outline */
*:focus {
    outline: none;
}

.menu-toggle:focus {
    outline: none;
    box-shadow: none;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--dark-color);
    color: var(--light-color);
    line-height: 1.6;
    position: relative;
    min-height: 100vh;
}

.bg-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(to bottom, rgba(18, 18, 18, 0.95), rgba(18, 18, 18, 0.8)),
        url('../img/graffiti-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -1;
    opacity: 0.15;
}

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

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

.highlight {
    color: var(--primary-color);
    font-family: 'Permanent Marker', cursive;
}

/* Header */
header {
    background-color: rgba(18, 18, 18, 0.9);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    border-bottom: 2px solid var(--primary-color);
}

.logo h1 {
    font-size: 1.8rem;
    margin-bottom: 0;
    letter-spacing: 1px;
}

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

nav ul li {
    margin-left: 2rem;
}

nav ul li a {
    color: var(--light-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

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

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s;
}

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

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

.menu-toggle {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--light-color);
}

.btn-primary:hover {
    background-color: #7500e6;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(140, 26, 255, 0.4);
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(140, 26, 255, 0.4);
}

.btn-practice {
    background-color: var(--secondary-color);
    color: var(--light-color);
    margin-top: auto;
    width: auto;
    min-width: 150px;
    max-width: 80%;
}

.btn-practice:hover {
    background-color: #e6007d;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(255, 26, 140, 0.4);
}

/* Sections */
section {
    padding: 3rem 5%;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.cta-center {
    text-align: center;
    margin-top: 2rem;
}

/* Hero Section */
.hero {
    background: linear-gradient(to right, rgba(18, 18, 18, 0.8), rgba(18, 18, 18, 0.6)), url('../img/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    text-align: left;
    position: relative;
}

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

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* Features Section */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    background-color: var(--light-dark-color);
    border-radius: 10px;
    margin: 20px 5% 0;
    position: relative;
    z-index: 2;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    padding: 2rem;
}

.feature-card {
    background-color: var(--medium-dark-color);
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Sample Terms Section */
.sample-terms {
    text-align: center;
}

.term-preview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.term-card {
    background-color: var(--light-dark-color);
    border-radius: 10px;
    padding: 1.5rem;
    text-align: left;
    transition: transform 0.3s, box-shadow 0.3s;
    border-left: 4px solid var(--primary-color);
}

.term-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.term-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.term-card p {
    margin-bottom: 1rem;
    color: var(--light-color);
}

.term-examples {
    margin-top: 1rem;
}

.term-examples p {
    font-style: italic;
    color: var(--gray-color);
    font-size: 0.9rem;
}

/* Footer */
footer {
    background-color: var(--light-dark-color);
    padding: 3rem 5% 1rem;
    margin-top: 3rem;
    border-top: 2px solid var(--primary-color);
}

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

.footer-logo h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer-logo p {
    color: var(--gray-color);
}

.footer-links h3,
.footer-contact h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

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

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

.footer-links ul li a {
    color: var(--gray-color);
    text-decoration: none;
    transition: color 0.3s;
}

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

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--medium-dark-color);
    color: var(--light-color);
    font-size: 1.2rem;
    transition: all 0.3s;
}

.social-icons a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

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

.footer-bottom p {
    color: var(--gray-color);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* Loading Animation */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
    font-size: 1.2rem;
    color: var(--gray-color);
}

.loading::after {
    content: '...';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% {
        content: '.';
    }
    40% {
        content: '..';
    }
    60%, 100% {
        content: '...';
    }
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--light-dark-color);
        padding: 1rem 0;
        display: none;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
    }

    nav.active {
        display: block;
    }

    nav ul {
        flex-direction: column;
        align-items: center;
    }

    nav ul li {
        margin: 0.5rem 0;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .features {
        margin: 0;
        border-radius: 0;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    section {
        padding: 2rem 5%;
    }
}