:root {
    --bg-color: #819dde;
    --card-bg: #1c48a9;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --border-color: #cacaca;
    --accent-blue: #007bff;
    --error-pink: #d81b60;
}

* {
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    font-weight: 600;
    line-height: 1.5;
    margin: 0;
    padding: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100%;
}

.container {
    width: 100%;
    max-width: 900px;
}

.card {
    background-color: var(--card-bg);
    border: 4px solid var(--border-color);
    box-shadow: 10px 10px 8px 10px #070910;
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0px 0px 8px 10px inset #01155e;
    margin-top: 2rem;
}

.card header {
    text-align: center;
}

h1 {
    margin-bottom: 0.2rem;
    font-size: 2rem;
}

p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1rem;
}

label {
    display: flex;
    flex-direction: column;
    color: var(--text-secondary);
    font-size: 0.9rem;
    gap: 0.5rem;
}

input {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    padding: 0.75rem;
    font-size: 1rem;
    transition: border-color 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

button {
    width: 100%;
    background-color: var(--accent-blue);
    color: white;
    border: none;
    border-radius: 6px;
    padding: 0.8rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 0.5rem;
}

button:hover {
    filter: brightness(1.1);
}

.btn-delete {
    padding: 0.7rem 1.2rem;
    background-color: var(--error-pink);
    font-size: 0.8rem;
    height: 3rem;
    width: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
}

th {
    text-align: left;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-color);
    padding: 1rem;
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

footer.grid {
    margin-top: 1rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

footer h3 {
    margin: 0.5rem 0;
    font-size: 1.5rem;
}

hr {
    border: 0;
    border-top: 1px solid var(--border-color);
    margin: 2rem 0;
}