@font-face {
    font-family: 'PP Neue Montreal Mono';
    src: url('../assets/fonts/PPNeueMontrealMono-Thin.otf') format('opentype');
    font-weight: 100;
    font-style: normal;
}

@font-face {
    font-family: 'PP Neue Montreal Mono';
    src: url('../assets/fonts/PPNeueMontrealMono-Book.otf') format('opentype');
    font-weight: 300;
    font-style: normal;
}

@font-face {
    font-family: 'PP Neue Montreal Mono';
    src: url('../assets/fonts/PPNeueMontrealMono-Medium.otf') format('opentype');
    font-weight: 500;
    font-style: normal;
}

@font-face {
    font-family: 'PP Neue Montreal Mono';
    src: url('../assets/fonts/PPNeueMontrealMono-Bold.otf') format('opentype');
    font-weight: 700;
    font-style: normal;
}

:root {
    --primary-color: #131313;
    --secondary-color: #4a4a4a;

    --block-color: #00000040;
    --block-color-light: #cacaca80;

    /* background colors */
    --background: #0f0f0f;
    --background-secondary: #191a1a;
    --timeline-bg: #0d0c0c;

    /* border colors */
    --border-color: #3a3e3c;
    --gridline-color: #2b2929;
    --gridline-width: 1px;

    /* text colors */
    --text-primary: #f1f1f1;
    --text-secondary: #a0a0a0;
    --text-tertiary: #505050;
    --hover-color: #2a2a2a;
    --drop-zone-color: #3a3a3a;
    --day-line-color: #4a4a4a;

    /* accent colors */
    --accent-color-primary: #35b66f;
    --accent-color-secondary: #b635a5;
    --accent-color-tertiary: #b69a35;
    --accent-color-quaternary: #4d52dc;
    --border-secondary: #2e302f;
    
    /* badge background colors with 0.8 opacity */
    --accent-color-primary-bg: rgba(120, 211, 161, 0.6);  /* XD green */
    /* --accent-color-primary-bg: rgba(182, 182, 182, 0.8);   */
    --accent-color-tertiary-bg: rgba(227, 201, 106, 0.6);  /* PM yellow */
    --accent-color-quaternary-bg: rgba(137, 141, 243, 0.6); /* PD blue */

    --space-extralarge: 2rem;
    --space-large: 1.5rem;
    --space-medium: 1rem;
    --space-small: 0.5rem;
    --space-extrasmall: 0.25rem;
    --spacing-unit: 8px;
    
    /* mask configuration */
    --mask-corner-radius: 500px;
    
    /* control heights */
    --control-height: 32px;
}

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

body {
    font-family: 'PP Neue Montreal Mono', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-weight: 300;
    background: var(--background);
    color: var(--text-primary);
    overflow: hidden;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.controls {
    display: flex;
    align-items: end;
    gap: 2rem;
    padding: 1rem 2rem;
    background: var(--timeline-bg);
    border-bottom: 2px solid var(--gridline-color);
    flex-wrap: wrap;
}

.control-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
}

.control-group label {
    font-weight: 300;
    color: var(--text-secondary);
    font-size: 10px;
}

.button-group {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
}

.auto-save-status {
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 300;
    margin-left: 0.5rem;
}

.zoom-btn {
    width: 32px;
    height: 32px;
    border: 1px solid var(--border-color);
    background: var(--bg-timeline);
    color: var(--text-primary);
    border-radius: 0;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.zoom-btn:hover {
    background: #2a2a2a;
    border-color: var(--border-color);
}

#zoomLevel {
    min-width: 50px;
    text-align: center;
}

.preset-select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-timeline);
    color: var(--text-primary);
    font-family: inherit;
    cursor: pointer;
}

.date-input {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0;
    background: var(--bg-timeline);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    height: var(--control-height);
    box-sizing: border-box;
}

.action-btn {
    padding: var(--space-small) var(--space-medium);
    border: 1px solid var(--border-secondary);
    background: var(--background);
    color: white;
    border-radius: 0;
    cursor: pointer;
    font-family: inherit;
    font-weight: 400;
    color: --text-secondary;
    transition: all 0.2s ease;
    height: var(--control-height);
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.action-btn:hover {
    background: var(--background-secondary);
    border-color: var(--secondary-color);
}

.timeline-container {
    flex: 1;
    overflow: auto;
    position: relative;
    background: var(--timeline-bg);
}

/* Split button styles */
.split-button-group {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-width: 180px;
}

.split-btn-primary {
    border-right: none;
    border-radius: 0;
    flex: 1;
    min-width: 0;
}

.split-btn-dropdown {
    width: 32px;
    padding: 0;
    min-width: 32px;
    border-left: 1px solid var(--border-secondary);
    font-size: 0.75rem;
}

.split-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 2px;
    background: var(--background);
    border: 1px solid var(--border-secondary);
    display: none;
    flex-direction: column;
    width: 100%;
    min-width: 180px;
    z-index: 1000;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.split-dropdown-menu.show {
    display: flex;
}

.split-dropdown-item {
    width: 100%;
    text-align: left;
    padding: var(--space-small) var(--space-medium);
    border: none;
    /* border-bottom: 1px solid var(--border-secondary); */
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    transition: background 0.2s ease;
}

.split-dropdown-item:last-child {
    border-bottom: none;
}

.split-dropdown-item:hover {
    background: var(--background-secondary);
}