:root[data-theme="light"] {
    --bg-color: #f8f5ff;
    --container-bg: white;
    --card-bg: white;
    --text-color: #333;
    --text-secondary: #666;
    --heading-color: #6b46c1;
    --input-border: #e9d8fd;
    --input-bg: white;
    --button-bg: #6b46c1;
    --button-color: white;
    --button-hover: #553c9a;
    --video-input-bg: #f8f5ff;
    --shadow-color: rgba(107, 70, 193, 0.1);
    --code-bg: #f8f5ff;
}

:root[data-theme="dark"] {
    --bg-color: #1a1625;
    --container-bg: #2d2438;
    --card-bg: #2d2438;
    --text-color: #e0e0e0;
    --text-secondary: #aaa;
    --heading-color: #9f7aea;
    --input-border: #4a3c78;
    --input-bg: #332b4a;
    --button-bg: #9f7aea;
    --button-color: white;
    --button-hover: #805ad5;
    --video-input-bg: #332b4a;
    --shadow-color: rgba(159, 122, 234, 0.2);
    --code-bg: #332b4a;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    background-color: var(--bg-color);
    min-height: 100vh;
    padding: 20px;
    color: var(--text-color);
    transition: background-color 0.3s ease;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.card {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px var(--shadow-color), 0 2px 4px -1px var(--shadow-color);
    transition: all 0.3s ease;
}

.header {
    text-align: center;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.header i {
    font-size: 2.5em;
    color: #ff0000;
}

h1 {
    color: var(--heading-color);
    font-size: 2em;
    font-weight: 700;
}

.input-section {
    margin-bottom: 30px;
}

.input-group {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

label {
    display: block;
    margin-bottom: 10px;
    color: var(--text-color);
    font-weight: 500;
}

label i {
    margin-right: 8px;
    color: var(--heading-color);
}

input[type="number"],
input[type="text"] {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--input-border);
    border-radius: 8px;
    font-size: 16px;
    background-color: var(--input-bg);
    color: var(--text-color);
    transition: all 0.3s ease;
}

input[type="number"]:focus,
input[type="text"]:focus {
    outline: none;
    border-color: var(--button-bg);
    box-shadow: 0 0 0 3px rgba(var(--button-bg-rgb), 0.1);
}

.primary-button {
    background-color: var(--button-bg);
    color: var(--button-color);
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.primary-button:hover {
    background-color: var(--button-hover);
    transform: translateY(-1px);
}

.primary-button:active {
    transform: translateY(0);
}

.primary-button i {
    font-size: 1.1em;
}

.link-inputs {
    margin-top: 20px;
}

.video-input {
    margin-bottom: 20px;
    padding: 20px;
    background-color: var(--video-input-bg);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.submit-section {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.filename-input {
    margin-bottom: 10px;
}

.status {
    margin-top: 20px;
    padding: 15px;
    border-radius: 8px;
    font-weight: 500;
}

.status.error {
    background-color: #dc262620;
    color: #ff4444;
}

.status.success {
    background-color: #057a5520;
    color: #00c853;
}

.theme-switch {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

.theme-switch button {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    padding: 0;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--card-bg);
    color: var(--heading-color);
    box-shadow: 0 2px 8px var(--shadow-color);
    border: 2px solid var(--input-border);
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-switch button:hover {
    transform: scale(1.1) rotate(8deg);
}

.footer {
    margin-top: 30px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9em;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer .credits {
    margin-top: 20px;
    font-weight: 500;
    color: var(--heading-color);
    font-style: italic;
}

.footer code {
    background-color: var(--code-bg);
    padding: 4px 8px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9em;
}

@media (max-width: 600px) {
    .container {
        padding: 10px;
    }

    .card {
        padding: 20px;
    }
    
    .input-group {
        flex-direction: column;
    }

    .header {
        flex-direction: column;
        gap: 10px;
    }
    
    h1 {
        font-size: 1.5em;
    }
}

/* Tema ikonlarını yönet */
[data-theme="light"] .dark-icon,
[data-theme="dark"] .light-icon {
    display: none;
}

[data-theme="light"] .light-icon,
[data-theme="dark"] .dark-icon {
    display: inline;
}

.button-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1rem;
}

.button-group .primary-button {
    text-decoration: none;
    padding: 12px 24px;
    font-size: 16px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}