:root {
    --bg-color: #12151c;
    --card-bg: #222834;
    --border-color: #2d3545;
    --accent-color: #00adb5;
    --text-main: #ffffff;
    --text-muted: #a0aec0;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-size: 140%;
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.page {
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.header-pane {
    display: flex;
    justify-content: space-between;
}

#header-icon {
    width: 5em;
}

.user-profile {
    outline: solid 2px var(--accent-color);
    width: 10em;
    margin: 0.5em;
    padding: 0.5em;
    text-align: right;
}

h1 {
    color: var(--accent-color);
    margin-bottom: 25px;
    font-size: 2rem;
}

.year-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    width: 100%;
    max-width: 1400px;
}

.month-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
}

.month-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

/* Modal Overlay */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.modal {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 24px;
    width: 360px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.modal h3 {
    margin-bottom: 15px;
    color: var(--accent-color);
    font-size: 1.2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 12px;
}

.form-group label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.modal input,
.modal select {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: #fff;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

.btn {
    padding: 8px 14px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
}
.btn-primary {
    background: var(--accent-color);
    color: #fff;
}
.btn-secondary {
    background: var(--border-color);
    color: #fff;
}

@media (max-width: 1100px) {
    .year-container {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 600px) {
    .year-container {
        grid-template-columns: 1fr;
    }
}