:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #60a5fa;
    --text-color: #1e293b;
    --light-text: #f8fafc;
    --background-color: #f1f5f9;
    --card-color: #ffffff;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

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

html, body {
    height: 100%;
    width: 100%;
    overflow: hidden;
    font-family: 'Roboto', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
}

.container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
}

header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--light-text);
    text-align: center;
    padding: 2rem 0;
    box-shadow: 0 4px 6px var(--shadow-color);
}

h1 {
    font-size: 4rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

h2 {
    font-size: 2rem;
    font-weight: 400;
    letter-spacing: 1px;
}

main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.assistant-container {
    background-color: var(--card-color);
    border-radius: 20px;
    padding: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 10px 25px var(--shadow-color);
    width: 80%;
    max-width: 800px;
}

.assistant-icon {
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.assistant-status {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.status-indicator {
    position: relative;
    width: 60px;
    height: 60px;
    margin-bottom: 1rem;
}

.pulse {
    position: absolute;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--accent-color);
    opacity: 0.7;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(0.95);
        opacity: 0.7;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.4;
    }
    100% {
        transform: scale(0.95);
        opacity: 0.7;
    }
}

.assistant-status p {
    font-size: 1.5rem;
    color: var(--text-color);
}

footer {
    background-color: var(--secondary-color);
    color: var(--light-text);
    text-align: center;
    padding: 1rem 0;
    font-size: 0.9rem;
}

/* Tam ekran modu için */
@media screen and (max-height: 800px) {
    h1 {
        font-size: 3.5rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .assistant-container {
        padding: 2rem;
    }
    
    .assistant-icon svg {
        width: 100px;
        height: 100px;
    }
}

@media screen and (max-height: 600px) {
    header {
        padding: 1.5rem 0;
    }
    
    h1 {
        font-size: 3rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .assistant-icon svg {
        width: 80px;
        height: 80px;
    }
}

/* Button styles */
.button-container {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.modal-button {
    background-color: var(--primary-color);
    color: var(--light-text);
    border: none;
    border-radius: 8px;
    padding: 12px 24px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.modal-button:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}

.modal-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Modal styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    overflow: auto;
    animation: fadeIn 0.3s ease-in-out;
}

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

.modal-content {
    background-color: var(--card-color);
    margin: 10% auto;
    width: 80%;
    max-width: 800px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    animation: slideDown 0.4s ease-out;
    overflow: hidden;
}

@keyframes slideDown {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--light-text);
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.8rem;
    font-weight: 500;
    margin: 0;
}

.close-button {
    color: var(--light-text);
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.2s;
}

.close-button:hover {
    transform: scale(1.1);
}

.modal-body {
    padding: 30px;
    font-size: 1.1rem;
    line-height: 1.6;
}