:root {
    --bg-color: #0f172a;
    --text-color: #f8fafc;
    --accent-color: #6366f1;
    --accent-hover: #4f46e5;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --error-color: #ef4444;
    --success-color: #22c55e;
    --font-family: 'Outfit', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-family);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

/* Background Animation */
.background-blobs {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    animation: move 20s infinite alternate;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: #6366f1;
    top: -100px;
    left: -100px;
}

.blob-2 {
    width: 500px;
    height: 500px;
    background: #ec4899;
    bottom: -150px;
    right: -150px;
    animation-delay: -5s;
}

.blob-3 {
    width: 300px;
    height: 300px;
    background: #8b5cf6;
    top: 40%;
    left: 40%;
    animation-delay: -10s;
}

@keyframes move {
    0% {
        transform: translate(0, 0) scale(1);
    }

    100% {
        transform: translate(50px, 50px) scale(1.1);
    }
}

/* Main Container */
.container {
    padding: 2rem;
    width: 100%;
    max-width: 600px;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    text-align: center;
    transition: transform 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
}

.logo-container {
    display: flex;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.site-logo {
    height: 60px;
    width: auto;
    display: block;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* header h1 was here, keeping it for reference or if we revert, but now it's hidden */
/*
header h1 {
    font-size: 3rem;
    font-weight: 700;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    letter-spacing: -0.05em;
}
*/

.subtitle {
    font-size: 1.125rem;
    color: #94a3b8;
    margin-bottom: 2.5rem;
}

/* Form Styles */
.input-group {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    position: relative;
    background: rgba(0, 0, 0, 0.2);
    padding: 0.5rem;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    transition: border-color 0.3s ease;
}

.input-group:focus-within {
    border-color: var(--accent-color);
}

.advanced-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
    text-align: left;
}

.input-wrapper label {
    display: block;
    font-size: 0.85rem;
    color: #94a3b8;
    margin-bottom: 0.5rem;
    margin-left: 0.5rem;
}

.prefix-input,
select {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    width: 100%;
    transition: border-color 0.3s ease;
}

.prefix-input:focus-within,
select:focus {
    border-color: var(--accent-color);
    outline: none;
}

.prefix {
    padding-left: 1rem;
    color: #64748b;
    font-family: 'Courier New', monospace;
}

input[type="text"],
select {
    background: transparent;
    border: none;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    color: #fff;
    font-family: var(--font-family);
    outline: none;
    width: 100%;
}

select option {
    background: var(--bg-color);
    color: #fff;
}

input[type="url"] {
    width: 100%;
    background: transparent;
    border: none;
    padding: 1rem;
    font-size: 1rem;
    color: #fff;
    font-family: var(--font-family);
    outline: none;
}

input[type="url"]::placeholder,
input[type="text"]::placeholder {
    color: #64748b;
}

button#shorten-btn {
    width: 100%;
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.2);
}

button#shorten-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(99, 102, 241, 0.4);
}

button#shorten-btn:active {
    transform: translateY(0);
}

/* Result Box */
.hidden {
    display: none !important;
}

.result-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#short-url {
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    color: var(--accent-color);
    font-weight: 600;
    word-break: break-all;
    text-align: left;
}

#copy-btn {
    background: transparent;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

#copy-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

#success-msg {
    color: var(--success-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    font-weight: 500;
}

#error-msg {
    color: var(--error-color);
    margin-top: 1rem;
    font-size: 0.875rem;
    background: rgba(239, 68, 68, 0.1);
    padding: 0.75rem;
    border-radius: 12px;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

footer {
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

.footer-nav {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-nav a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.footer-nav a:hover {
    color: #fff;
}

.copyright {
    font-size: 0.75rem;
    color: #475569;
}

/* Loader */
.loader {
    display: none;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top: 2px solid #fff;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.loading .btn-text {
    display: none;
}

.loading .loader {
    display: block;
}

/* Responsive */
@media (max-width: 480px) {
    .glass-card {
        padding: 2rem 1.5rem;
    }

    header h1 {
        font-size: 2.5rem;
    }

    .advanced-options {
        grid-template-columns: 1fr;
    }

    .input-group {
        flex-direction: column;
        background: transparent;
        border: none;
        padding: 0;
        gap: 1rem;
        width: 100%;
    }

    input[type="url"] {
        background: rgba(0, 0, 0, 0.2);
        border: 1px solid var(--glass-border);
        border-radius: 12px;
        text-align: center;
    }

    button#shorten-btn {
        width: 100%;
        padding: 1rem;
    }

    .footer-nav {
        gap: 1rem;
    }
}