:root {
    --primary-color: #C92B2B;      /* Kırmızı ana renk */
    --primary-light: #e74c3c;      /* Daha açık kırmızı */
    --secondary-color: #1B4B82;    /* Koyu mavi */
    --accent-color: #69C5A0;       /* Mint yeşili */
    --dark-color: #333333;         /* Koyu gri */
    --medium-color: #6B6B6B;       /* Orta gri */
    --light-color: #f5f5f5;        /* Açık gri */
    --white-color: #ffffff;        /* Beyaz */
    --danger-color: #e74c3c;       /* Hata rengi */
    --success-color: #69C5A0;      /* Başarı rengi */
    --border-radius: 12px;         /* Ana köşe yuvarlaması */
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);  /* Gölge */
}

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

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-color);
    color: var(--dark-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Form Elemanları */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--medium-color);
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: 0.9rem 1rem;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--accent-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(105, 197, 160, 0.2);
}

/* Butonlar */
.btn {
    display: inline-block;
    padding: 0.9rem 1.5rem;
    border: none;
    border-radius: 8px;
    color: var(--white-color);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Uyarılar */
.alert {
    padding: 1rem;
    margin-bottom: 1.5rem;
    border-radius: 8px;
    font-size: 0.95rem;
}

.alert-danger {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--danger-color);
    border: 1px solid rgba(231, 76, 60, 0.2);
}

/* Dashboard elementi */
.dashboard-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Utility Sınıfları */
.text-center {
    text-align: center;
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-3 {
    margin-bottom: 1.5rem;
}

.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mt-3 {
    margin-top: 1.5rem;
}

/* Responsive Temel Tasarım */
@media (max-width: 768px) {
    .btn {
        padding: 0.8rem 1.2rem;
    }
}