/* indexstyle.css (Yeniden Tasarlandı) */

/* Genel Değişkenler */
:root {
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --danger-color: #dc3545;
    --background-light: #f8f9fa;
    --card-bg: #ffffff;
    --text-color: #495057;
    --border-color: #dee2e6;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --transition-speed: 0.3s;
}

/* Sayfa Arka Planı ve Ortalaması */
body {
    font-family: var(--font-family);
    margin: 0;
    color: var(--text-color);
    background: linear-gradient(-45deg, #007bff, #3a1078, #4a0980, #2575fc);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Giriş Kartı Ana Yapısı */
.login-wrapper {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1), 0 5px 15px rgba(0, 0, 0, 0.07);
    animation: slideUpFade 0.6s ease-out;
    border-top: 4px solid var(--primary-color);
}

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

/* Kart Başlığı ve İkon */
.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.icon-circle {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--primary-color), #005cbf);
    color: white;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    font-size: 2em;
    margin-bottom: 15px;
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
}

.login-header h2 {
    font-weight: 600;
    color: #343a40;
    margin: 0;
    font-size: 1.8em;
}

/* Mesajlar */
.message {
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-weight: 500;
    text-align: left;
    border: 1px solid transparent;
}

.error { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.success { background-color: #d4edda; color: #155724; border-color: #c3e6cb; }

/* Form Elemanları */
.form-group {
    position: relative; /* İkonların pozisyonlanması için gerekli */
    margin-bottom: 20px;
}

.form-group label {
    font-weight: 500;
    margin-bottom: 8px;
    color: #6c757d;
    font-size: 0.9em;
    display: block;
    text-align: left;
}

.form-icon {
    position: absolute;
    top: 60%;
    left: 15px;
    transform: translateY(-50%);
    color: #adb5bd;
    transition: color var(--transition-speed);
}

input[type="text"], input[type="password"] {
    width: 100%;
    padding: 12px 15px 12px 45px; /* İkon için solda boşluk */
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all var(--transition-speed);
    box-sizing: border-box;
    font-size: 1rem;
}

input[type="text"]:focus, input[type="password"]:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.15);
    outline: none;
}

/* Odaklanınca ikon rengini de değiştir */
input[type="text"]:focus + .form-icon,
input[type="password"]:focus + .form-icon {
    color: var(--primary-color);
}

/* Giriş Butonu */
button[type="submit"] {
    padding: 12px 15px;
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    font-size: 1.1em;
    cursor: pointer;
    background: linear-gradient(45deg, var(--primary-color), #005cbf);
    width: 100%;
    margin-top: 15px;
    transition: all var(--transition-speed);
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.25);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

button[type="submit"]:hover {
    background: linear-gradient(45deg, #0069d9, var(--primary-hover));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.35);
}

button[type="submit"]:active {
    transform: translateY(0);
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.25);
}