:root {
    --main-color: #2e8b57;
    --main-dark: #1e5631;
    --accent-orange: #ff7f50;
    --accent-purple: #8a2be2;
    --accent-green: #63da15;
    --discord-blue: #5865F2;
    --usbv-grey: #3d3d3d;
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-card: #242424;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #808080;
    --border-color: #333333;
    --gradient-1: linear-gradient(135deg, var(--main-color), var(--main-dark));
    --gradient-2: linear-gradient(135deg, #1a1a1a, #2a2a2a);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(46, 139, 87, 0.2);
    --header-bg-rgb: 15, 15, 15;
}

:root.light {
    --main-color: #2e8b57;
    --main-dark: #1e5631;
    --accent-orange: #ff9a4d;
    --accent-purple: #9b30ff;
    --accent-green: #63da15;
    --discord-blue: #5865F2;
    --usbv-grey: #a0a0a0;
    --bg-primary: #fefcf9;
    --bg-secondary: #f4f3f2;
    --bg-card: #ffffff;
    --text-primary: #1f1f1f;
    --text-secondary: #4a4a4a;
    --text-muted: #7a7a7a;
    --border-color: #e0dfde;
    --gradient-1: linear-gradient(135deg, var(--main-color), var(--main-dark));
    --gradient-2: linear-gradient(135deg, #fefcf9, #f4f3f2);
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    --shadow-glow: 0 0 15px rgba(46, 139, 87, 0.08);
    --header-bg-rgb: 254, 252, 249;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Animated Background */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.1;
}

.bg-animation::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
            radial-gradient(circle at 20% 80%, var(--main-color) 0%, transparent 50%),
            radial-gradient(circle at 80% 20%, var(--main-dark) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(var(--header-bg-rgb), 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 1rem 0;
    transition: background 0.3s ease;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--accent-purple);
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: var(--main-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* GitHub Button */
.github-button {
    position: absolute;
    top: 20px;
    right: 20px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    z-index: 999;
}

.github-button:hover {
    background: var(--main-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* Main Content */
main {
    margin-top: 80px;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 0;
    min-height: calc(100vh - 80px);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Shortener Container */
.shortener-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 3rem 2rem;
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.shortener-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(46, 139, 87, 0.1), transparent);
    transition: left 0.5s ease;
}

.shortener-container:hover::before {
    left: 100%;
}

#shortenForm h1 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    background: linear-gradient(90deg, var(--main-color), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

#shortenForm h1 span {
    color: var(--accent-orange);
    font-size: 1.2rem;
    display: block;
    margin-top: 0.5rem;
}

.beta-banner {
    background: linear-gradient(135deg, var(--accent-orange), #ff6b35);
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 10px;
    text-align: center;
    margin-bottom: 2rem;
    font-weight: 500;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 1rem;
}

input[type="url"], input[type="text"] {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

input[type="url"]:focus, input[type="text"]:focus {
    outline: none;
    border-color: var(--main-color);
    box-shadow: 0 0 0 3px rgba(46, 139, 87, 0.1);
}

input::placeholder {
    color: var(--text-muted);
}

button[type="submit"] {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--gradient-1);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-glow);
    margin-top: 1rem;
}

button[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(46, 139, 87, 0.4);
}

#result {
    margin-top: 2rem;
    padding: 1.5rem;
    border-radius: 10px;
    display: none;
    text-align: center;
    animation: slideIn 0.5s ease-out;
}

#result.success {
    background: linear-gradient(135deg, rgba(99, 218, 21, 0.1), rgba(99, 218, 21, 0.05));
    border: 1px solid rgba(99, 218, 21, 0.3);
    color: var(--accent-green);
}

#result.error {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(255, 107, 53, 0.05));
    border: 1px solid rgba(255, 107, 53, 0.3);
    color: var(--accent-orange);
}

#result a {
    color: var(--main-color);
    font-weight: bold;
    text-decoration: none;
    display: block;
    margin-top: 1rem;
    padding: 0.5rem;
    background: rgba(46, 139, 87, 0.1);
    border-radius: 5px;
    word-break: break-all;
}

#result a:hover {
    background: rgba(46, 139, 87, 0.2);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Footer */
footer {
    background: var(--bg-secondary);
    padding: 3rem 0 1rem;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--main-color);
    margin-bottom: 1rem;
}

.footer-section p,
.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    line-height: 1.8;
}

.footer-section a:hover {
    color: var(--main-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .container {
        padding: 0 1rem;
    }

    .shortener-container {
        margin: 1rem;
        padding: 2rem 1rem;
    }

    #shortenForm h1 {
        font-size: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    .github-button {
        position: relative;
        top: auto;
        right: auto;
        margin: 1rem auto;
        display: flex;
        width: fit-content;
    }
}

@media (max-width: 480px) {
    .footer-content {
        grid-template-columns: 1fr;
    }
}

.logo-container {
    text-align: center;
    margin-bottom: 1.5rem;
}

.form-logo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent-purple);
    box-shadow: var(--shadow-glow);
}

/* Tab Styles */
.tab-container {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.tab-button {
    padding: 12px 24px;
    background: var(--bg-secondary);
    border: none;
    border-radius: 8px 8px 0 0;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    margin-right: 5px;
}

.tab-button:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.tab-button.active {
    background: var(--bg-card);
    color: var(--main-color);
    border-bottom: 3px solid var(--main-color);
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Download Button */
.download-btn {
    display: inline-block;
    padding: 12px 24px;
    background: var(--gradient-1);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    margin-top: 15px;
    transition: all 0.3s ease;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(46, 139, 87, 0.3);
}

.logo-container h1 {
    background: linear-gradient(90deg, var(--accent-purple), var(--main-color), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0.5rem 0;
}

.special-message {
    background: linear-gradient(135deg, #ff3535, #ff4d4d);
    color: white;
    padding: 2rem;
    border-radius: 15px;
    margin: 2rem 0;
    text-align: center;
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.3);
    animation: pulse 2s infinite;
}

.special-message h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: white;
}

.special-message p {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.claim-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: white;
    color: #ff6b35;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.claim-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    background: #f8f8f8;
}

.requested-url {
    font-family: monospace;
    background: rgba(0,0,0,0.2);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    word-break: break-all;
    margin: 1rem 0;
    display: inline-block;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}