:root {
    --primary-color: #6c63ff;
    --secondary-color: #f5f5f5;
    --text-color: #333;
    --light-text: #666;
    --border-color: #ddd;
    --success-color: #4caf50;
    --card-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --bg-color: #f9f9f9;
    --card-bg: white;
}

[data-theme="dark"] {
    --primary-color: #8c83ff;
    --secondary-color: #2a2a2a;
    --text-color: #f0f0f0;
    --light-text: #bbb;
    --border-color: #444;
    --card-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    --bg-color: #121212;
    --card-bg: #1e1e1e;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

header h1 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

header p {
    color: var(--light-text);
}

.theme-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
    margin-top: 1rem;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--secondary-color);
    transition: .4s;
    border-radius: 30px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: var(--primary-color);
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--secondary-color);
}

input:checked + .slider:before {
    transform: translateX(30px);
}

.slider .icon {
    position: absolute;
    top: 6px;
    font-size: 14px;
    transition: .4s;
}

.slider .sun {
    left: 8px;
    color: #f1c40f;
    opacity: 1;
}

.slider .moon {
    right: 8px;
    color: #f0f0f0;
    opacity: 0;
}

input:checked + .slider .sun {
    opacity: 0;
}

input:checked + .slider .moon {
    opacity: 1;
}

form {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--card-shadow);
    margin-bottom: 2rem;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

input {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--card-bg);
    color: var(--text-color);
}

input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(108, 99, 255, 0.2);
}

.btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
    width: 100%;
}

.btn:hover {
    background-color: #5a52e0;
    transform: translateY(-2px);
}

.hidden {
    display: none;
}

.sonuc-kart {
    background-color: var(--card-bg);
    border-radius: 10px;
    box-shadow: var(--card-shadow);
    overflow: hidden;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.sonuc-baslik {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background-color: var(--primary-color);
    color: white;
}

.sonuc-baslik h2 {
    margin: 0;
    font-size: 1.5rem;
}

.sonuc-icerik {
    padding: 2rem;
}

.burc-bilgi {
    margin-bottom: 1.5rem;
}

.burc-bilgi:last-child {
    margin-bottom: 0;
}

.burc-bilgi h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.burc-detay {
    display: flex;
    align-items: center;
}

.burc-icon {
    width: 60px;
    height: 60px;
    background-color: var(--secondary-color);
    border-radius: 50%;
    margin-right: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: background-color 0.3s ease;
}

.burc-text p:first-child {
    font-weight: 600;
    font-size: 1.1rem;
}

.burc-text p:last-child {
    color: var(--light-text);
    font-size: 0.9rem;
}

footer {
    text-align: center;
    margin-top: 2rem;
    color: var(--light-text);
    font-size: 0.9rem;
}

.btn-secondary {
    background-color: white;
    color: var(--primary-color);
    border: none;
    padding: 0.6rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    width: auto;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

.btn-secondary i {
    font-size: 0.8rem;
}

@media (max-width: 600px) {
    .container {
        padding: 1rem;
    }
    
    form, .sonuc-icerik {
        padding: 1.5rem;
    }
}

.splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--primary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
}

.splash-content {
    text-align: center;
    color: white;
}

.splash-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: pulse 2s infinite;
}

.splash-content h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    font-weight: 700;
}

.splash-loader {
    width: 200px;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    overflow: hidden;
    margin: 0 auto;
}

.loader-bar {
    height: 100%;
    width: 0;
    background-color: white;
    border-radius: 3px;
    animation: loading 2s ease-in-out forwards;
}

.splash-hidden {
    opacity: 0;
    visibility: hidden;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes loading {
    0% {
        width: 0;
    }
    100% {
        width: 100%;
    }
}

[data-theme="dark"] .splash-screen {
    background-color: #121212;
}

[data-theme="dark"] .splash-content {
    color: var(--primary-color);
}

[data-theme="dark"] .splash-loader {
    background-color: rgba(108, 99, 255, 0.3);
}

[data-theme="dark"] .loader-bar {
    background-color: var(--primary-color);
}