/* Color Palette and Variables */
:root {
    --bg-color: #050505;
    --text-color: #ffffff;
    --accent-color: #444;
    --glass-bg: rgba(25, 25, 25, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);
    --btn-hover: #ffffff;
    --btn-hover-text: #050505;
}

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

body {
    font-family: 'Space Grotesk', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    overflow-x: hidden;
}

.font-heading {
    font-family: 'Syncopate', sans-serif;
}

.container {
    width: 100%;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

header {
    text-align: center;
    animation: fadeInDown 1s ease-out forwards;
}

header h1 {
    font-size: 3.5rem;
    letter-spacing: 0.2em;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

header p {
    font-size: 0.9rem;
    letter-spacing: 0.3em;
    color: var(--accent-color);
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 1px;
    padding: 3rem 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: fadeInUp 1s ease-out forwards;
    animation-delay: 0.2s;
    opacity: 0;
}

.glass-panel:hover {
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.05);
}

#extract-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input-group {
    position: relative;
}

input[type="url"] {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
    color: var(--text-color);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s ease;
}

input[type="url"]:focus {
    border-bottom-color: var(--text-color);
}

input::placeholder {
    color: #666;
    letter-spacing: 0.1em;
}

button {
    background: transparent;
    border: 1px solid var(--text-color);
    color: var(--text-color);
    padding: 1.2rem;
    font-family: 'Syncopate', sans-serif;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

button:hover {
    background: var(--btn-hover);
    color: var(--btn-hover-text);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: transparent;
    color: var(--text-color);
}

/* Spinner Animation */
.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top: 2px solid var(--text-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

button:hover .spinner {
    border-top: 2px solid var(--btn-hover-text);
    border: 2px solid rgba(0,0,0,0.3);
}

#status-message {
    text-align: center;
    font-size: 0.85rem;
    color: #888;
    min-height: 1.2rem;
    font-family: 'Space Grotesk', sans-serif;
}

.success-text { color: #4CAF50 !important; }
.error-text { color: #F44336 !important; }

footer {
    text-align: center;
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: #444;
    animation: fadeIn 1.5s ease-out forwards;
    animation-delay: 0.5s;
    opacity: 0;
}

/* Animations */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

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

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

@media (max-width: 480px) {
    header h1 { font-size: 2.5rem; }
    .glass-panel { padding: 2rem 1.5rem; }
}