:root {
    --primary-blue: #2c3e50;
    --accent-blue: #3498db;
    --bg-color: #f4f7f6;
    --text-color: #333;
    --shadow: 0 10px 25px rgba(0,0,0,0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: linear-gradient(135deg, #eef2f3 0%, #8e9eab 100%);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 80%;
    max-width: 500px;
    padding: 20px;
}

.login-box {
    background: #fff;
    padding: 30px;
    border-radius: 50px;
    box-shadow: var(--shadow);
    text-align: center;
}

.logo {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.logo span {
    color: var(--accent-blue);
}

.login-header p {
    color: #7f8c8d;
    font-size: 14px;
    margin-bottom: 30px;
}

.input-group {
    position: relative;
    margin-bottom: 20px;
}

.input-group i:not(.toggle-password) {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #95a5a6;
}

.input-group input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    border: 1px solid #dfe6e9;
    border-radius: 10px;
    background: #f9f9f9;
    outline: none;
    transition: all 0.3s ease;
}

.input-group input:focus {
    border-color: var(--accent-blue);
    background: #fff;
    box-shadow: 0 0 8px rgba(52, 152, 219, 0.2);
}

.toggle-password {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: #95a5a6;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    margin-bottom: 25px;
    color: #636e72;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
}

.forgot-password {
    color: var(--accent-blue);
    text-decoration: none;
}

.login-btn {
    width: 100%;
    padding: 12px;
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
}

.login-btn:hover {
    background: #1a252f;
}

.login-footer {
    margin-top: 30px;
    font-size: 11px;
    color: #bdc3c7;
}

.logo {
    padding: 25px 15px; /* Logonun etrafındaki boşluk */
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
}

.sidebar-logo {
    max-width: 45%;    /* Sidebar genişliğine göre orantılar */
    height: auto;      /* Oranı bozmaz */
    max-height: 280px;  /* Logonun çok devasa olmasını engeller */
    object-fit: contain;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1)); /* Hafif derinlik katar */
}