body {
    font-family: 'Montserrat', 'Segoe UI', Arial, sans-serif;
    background: #f3f4f6;
    color: #252525;
    font-size: 1.07rem;
    letter-spacing: 0.01em;
}

.navbar {
    background: #fff;
    box-shadow: 0 2px 16px #00000012, 0 1.5px 0 #e3e4e8;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

    .navbar .navbar-brand {
        color: #e53e3e !important;
        font-weight: bold;
        font-size: 1.5rem;
        letter-spacing: 1.5px;
    }

    .navbar .nav-link {
        color: #252525 !important;
        font-weight: 500;
        padding: 0.55rem 1.1rem;
        border-radius: 8px;
        transition: background 0.2s, color 0.2s;
    }

        .navbar .nav-link:hover, .navbar .nav-link.active {
            background: #e53e3e22;
            color: #e53e3e !important;
            text-decoration: none;
        }

    .navbar .btn {
        border-radius: 8px;
        padding: 0.45rem 1.2rem;
    }

.card, .content-block, .box-shadow {
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 4px 24px #00000010;
    padding: 1.3rem 1.4rem 1.1rem 1.4rem;
    margin-bottom: 2rem;
}

.table {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 12px #0002;
    overflow: hidden;
}

    .table th {
        background: #e53e3e;
        color: #fff;
        border: none;
        font-weight: 600;
    }

    .table tr {
        transition: background 0.18s;
    }

        .table tr:nth-child(even) {
            background: #f9fafb;
        }

        .table tr:hover {
            background: #ffeaea;
        }

    .table td {
        vertical-align: middle;
        border-top: 1px solid #f1f1f1;
    }

.btn, .btn-primary, .btn-danger, .btn-secondary {
    border-radius: 10px;
    font-weight: 600;
    padding: 0.48rem 1.35rem;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px #e53e3e18;
    transition: background 0.17s, box-shadow 0.17s, color 0.17s;
}

.btn-primary {
    background: #e53e3e;
    border-color: #e53e3e;
    color: #fff;
}

    .btn-primary:hover {
        background: #be2323;
        border-color: #be2323;
    }

.btn-danger {
    background: #ff5b5b;
    border-color: #ff5b5b;
    color: #fff;
}

    .btn-danger:hover {
        background: #e53e3e;
        border-color: #e53e3e;
    }

.btn-secondary {
    background: #fafafa;
    border-color: #e4e4e4;
    color: #252525;
}

    .btn-secondary:hover {
        background: #f3f3f3;
        color: #e53e3e;
        border-color: #e53e3e;
    }

input[type="text"], input[type="password"], input[type="email"], input[type="date"], textarea, select {
    border-radius: 8px;
    border: 1.5px solid #e4e4e4;
    background: #f9fafb;
    padding: 0.45rem 1.05rem;
    box-shadow: 0 2px 7px #e53e3e09;
    transition: border-color 0.2s, box-shadow 0.2s;
}

    input:focus, textarea:focus, select:focus {
        border-color: #e53e3e;
        outline: none;
        box-shadow: 0 2px 12px #e53e3e24;
    }

label {
    font-weight: 500;
    color: #be2323;
    margin-bottom: 0.25rem;
}

h1, h2, h3, h4 {
    color: #e53e3e;
    font-weight: 800;
    letter-spacing: 0.7px;
}

hr {
    border-top: 2px solid #e53e3e33;
    margin-top: 1.2rem;
    margin-bottom: 1.2rem;
}

footer.footer {
    background: #fff;
    color: #be2323;
    border-top: 2px solid #e53e3e2a;
    margin-top: 1.2rem; /* Eskiden 3rem idi, küçülttük */
    padding: 0.5rem 0 0.3rem 0; /* Eskiden 1.2rem 0 0.8rem 0 idi, küçülttük */
    font-size: 0.95rem; /* Eskiden 1.05rem idi, küçülttük */
    text-align: center;
    box-shadow: 0 -2px 12px #e53e3e08;
}

    footer.footer a {
        color: #e53e3e;
        text-decoration: underline;
    }

        footer.footer a:hover {
            color: #252525;
        }

.alert-success {
    color: #21562b;
    background-color: #d8f8e2;
    border-color: #b5ebcc;
    border-radius: 10px;
}

.alert-danger {
    color: #95273c;
    background-color: #ffe9ee;
    border-color: #ffc4d4;
    border-radius: 10px;
}

@media (max-width: 576px) {
    .navbar .navbar-brand {
        font-size: 1.08rem;
    }

    .table {
        font-size: 0.95rem;
    }

    .btn {
        padding: 0.38rem 0.8rem;
    }

    .card, .content-block, .box-shadow {
        padding: 1.1rem 0.7rem 0.7rem 0.7rem;
    }
}

a, .table a {
    color: #e53e3e;
    transition: color 0.18s;
    text-decoration: none;
}

    a:hover, .table a:hover {
        color: #be2323;
        text-decoration: underline;
    }