/* --- Design Tokens --- */
:root {
    --bg-color: #000000;
    --text-main: #FFFFFF;
    --text-dim: #888888;
    --surface: #000000;
    --surface-container: #111111;
    --surface-hover: #1A1A1A;
    --outline: #333333;
    --accent: #FFFFFF;
    --radius-lg: 24px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --font-main: 'Roboto', sans-serif;
    --font-mono: 'Space Mono', monospace;
    /* MD3 Easing - Emphasized */
    --ease-md3: cubic-bezier(0.2, 0.0, 0, 1.0);
    --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.1);
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    justify-content: center;
}

/* --- Fixed Background --- */
.ambient-glow {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background: radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.08) 0%, rgba(0,0,0,0) 60%);
    z-index: -1; pointer-events: none;
}

.app-container {
    width: 100%; max-width: 1400px; height: 100vh;
    display: flex; flex-direction: column; padding: 1.5rem;
    position: relative; z-index: 1;
}

/* --- Header --- */
.top-bar {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1rem 0 1rem 0; flex: 0 0 auto;
}

.home-link { text-decoration: none; color: inherit; cursor: pointer; transition: opacity 0.2s ease; }
.home-link:hover { opacity: 0.7; }

.logo-section h1 {
    font-family: var(--font-mono); font-size: 1.1rem; font-weight: 400;
    color: var(--text-dim); letter-spacing: -0.5px; margin: 0;
}
.logo-section .highlight {
    color: var(--text-main); font-weight: 700;
    text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 4px;
}

.status-badge {
    display: flex; align-items: center; gap: 8px;
    font-size: 0.75rem; font-family: var(--font-mono); color: var(--text-dim);
    border: 1px solid var(--outline); padding: 6px 12px;
    border-radius: 50px; background: rgba(0,0,0,0.5); backdrop-filter: blur(5px);
    min-width: 120px; justify-content: center;
}

.live-dot {
    width: 6px; height: 6px; background-color: var(--accent);
    border-radius: 50%; box-shadow: 0 0 8px var(--accent);
    animation: pulse 2s infinite;
}

.admin-controls { display: flex; gap: 8px; }
.admin-controls.hidden { display: none; }

.icon-btn {
    background: var(--surface-container); border: 1px solid var(--outline);
    color: var(--text-main); width: 36px; height: 36px;
    border-radius: 50%; cursor: pointer; display: flex;
    align-items: center; justify-content: center; transition: all 0.2s ease;
}
.icon-btn:hover { background: var(--surface-hover); transform: scale(1.05); }
.icon-btn.danger:hover { border-color: #ff4444; color: #ff4444; }

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.9); }
}

/* --- Main Board --- */
main {
    flex: 1; overflow: hidden; display: flex; flex-direction: column; padding-top: 1rem;
    position: relative; /* Required for absolute loading overlay */
    border-radius: var(--radius-lg);
}

/* --- Loading Overlay (Material 3 Animated Gradient) --- */
.loading-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    z-index: 50;
    display: flex; justify-content: center; align-items: center;
    transition: opacity 0.4s var(--ease-md3), visibility 0.4s;
    border-radius: var(--radius-lg);

    /* Animated Gradient Background */
    background: linear-gradient(
        -45deg,
        #000000,
        #141414,
        #050505,
        #0f0f0f
    );
    background-size: 400% 400%;
    animation: gradient-flow 10s ease infinite;

    /* Border to define edges in dark mode */
    border: 1px solid rgba(255,255,255,0.05);
}

.loading-overlay.hidden {
    opacity: 0; visibility: hidden; pointer-events: none;
}

@keyframes gradient-flow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.loader-content {
    display: flex; flex-direction: column; align-items: center; gap: 20px;
    font-family: var(--font-mono); color: var(--text-dim); font-size: 0.85rem;
    letter-spacing: 1px;
}

/* SVG Spinner Animation */
.md-spinner {
    width: 40px; height: 40px;
    animation: rotate 2s linear infinite;
    transform-origin: center;
}

.md-spinner-path {
    stroke: var(--accent);
    stroke-linecap: round;
    animation: dash 1.5s ease-in-out infinite;
}

@keyframes rotate {
    100% { transform: rotate(360deg); }
}

@keyframes dash {
    0% { stroke-dasharray: 1, 150; stroke-dashoffset: 0; }
    50% { stroke-dasharray: 90, 150; stroke-dashoffset: -35; }
    100% { stroke-dasharray: 90, 150; stroke-dashoffset: -124; }
}

/* --- Board & Content Animation --- */
.board-container {
    display: flex; gap: 16px; overflow-x: auto; height: 100%;
    padding-bottom: 1rem; scrollbar-width: thin;
    scrollbar-color: var(--outline) transparent;
}

.board-column {
    flex: 0 0 280px; background-color: rgba(17, 17, 17, 0.5);
    border: 1px solid var(--outline); border-radius: var(--radius-md);
    display: flex; flex-direction: column; max-height: 100%;

    /* Hidden Initial State for Animation */
    opacity: 0;
    transform: translateY(20px);
}

/* Animation trigger when main has .loaded */
main.loaded .board-column {
    animation: md3-fade-up 0.6s var(--ease-md3) forwards;
}

/* Stagger the columns */
main.loaded .board-column:nth-child(1) { animation-delay: 0.1s; }
main.loaded .board-column:nth-child(2) { animation-delay: 0.15s; }
main.loaded .board-column:nth-child(3) { animation-delay: 0.2s; }
main.loaded .board-column:nth-child(4) { animation-delay: 0.25s; }
main.loaded .board-column:nth-child(5) { animation-delay: 0.3s; }

@keyframes md3-fade-up {
    from { opacity: 0; transform: translateY(20px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.column-header {
    padding: 16px; display: flex; align-items: center; gap: 8px;
    font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-dim);
    letter-spacing: 1px; border-bottom: 1px solid var(--outline);
    background: var(--surface); border-radius: var(--radius-md) var(--radius-md) 0 0;
    position: relative; cursor: default;
}

/* --- Material 3 Tooltip --- */
.column-header::after {
    content: attr(data-tooltip);
    position: absolute;
    top: 100%; left: 50%;
    transform: translateX(-50%) translateY(4px) scale(0.95);
    background: var(--surface-container);
    border: 1px solid var(--outline);
    color: var(--text-main);
    padding: 8px 12px;
    border-radius: 8px;
    font-family: var(--font-main);
    font-size: 0.75rem;
    font-weight: 400;
    line-height: 1.4;
    text-transform: none;
    letter-spacing: 0;
    width: 240px;
    text-align: center;
    z-index: 100;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    box-shadow: 0 4px 8px rgba(0,0,0,0.5);
    white-space: normal;
}

.column-header:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(4px) scale(1);
    transition-delay: 0.2s;
}

.card-list {
    flex: 1; padding: 12px; overflow-y: auto;
    display: flex; flex-direction: column; gap: 12px;
}

/* --- Project Cards --- */
.project-card {
    background-color: var(--surface);
    border: 1px solid var(--outline);
    border-radius: var(--radius-sm);
    padding: 14px;
    cursor: pointer;
    transition: all 0.2s var(--ease-spring);
    position: relative; /* Essential for button positioning */
    width: 100%;
}

.project-card:hover {
    border-color: var(--accent);
    background-color: var(--surface-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}

.card-title {
    font-size: 0.95rem; font-weight: 500; color: var(--text-main);
    display: block; margin-bottom: 4px; padding-right: 24px; /* Make space for pencil */
}

.card-link-icon {
    font-size: 12px; color: var(--text-dim);
    vertical-align: middle; margin-left: 4px;
}

/* --- Card Actions (Admin Only) --- */
.card-actions {
    position: absolute;
    top: 8px; right: 8px;
    display: flex; gap: 6px;
    z-index: 10;
}

.card-action-btn {
    width: 26px; height: 26px;
    font-size: 16px;
    color: var(--text-dim);
    background: var(--surface-container);
    border: 1px solid var(--outline);
    border-radius: 4px;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.2s ease;
}

.card-action-btn:hover {
    color: var(--bg-color);
    background: var(--text-main);
    border-color: var(--text-main);
}

.card-action-btn.danger:hover {
    background: #ff4444;
    border-color: #ff4444;
    color: white;
}

/* Smooth Expansion Animation */
.card-desc-wrapper {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.6s var(--ease-spring);
    border-top: 1px solid transparent;
    margin-top: 0;
}

.card-desc-inner {
    overflow: hidden; opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.4s ease, transform 0.4s ease;
    transition-delay: 0s;
    font-size: 0.8rem; color: var(--text-dim); line-height: 1.5;
}

.project-card:hover .card-desc-wrapper {
    grid-template-rows: 1fr;
    border-color: var(--outline);
    margin-top: 12px; padding-top: 8px;
}

.project-card:hover .card-desc-inner {
    opacity: 1; transform: translateY(0); transition-delay: 0.1s;
}

/* --- Modals --- */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.8); backdrop-filter: blur(4px);
    z-index: 100; display: flex; justify-content: center; align-items: center;
}
.modal-overlay.hidden { display: none; }

.modal-box {
    background: var(--surface-container); border: 1px solid var(--outline);
    border-radius: var(--radius-md); padding: 24px; width: 90%; max-width: 400px;
    box-shadow: 0 0 20px rgba(255,255,255,0.05);
}
.modal-box h3 {
    font-family: var(--font-mono); color: var(--text-dim);
    font-size: 0.9rem; margin-bottom: 16px; text-transform: uppercase;
}
.modal-input {
    width: 100%; background: var(--bg-color); border: 1px solid var(--outline);
    color: var(--text-main); padding: 12px; border-radius: var(--radius-sm);
    font-family: var(--font-main); margin-bottom: 12px; outline: none;
}
.modal-input:focus { border-color: var(--accent); }
.modal-input.area { resize: vertical; min-height: 80px; }

.modal-actions { display: flex; justify-content: flex-end; gap: 12px; margin-top: 8px; }
.btn-text {
    background: none; border: none; color: var(--text-dim);
    cursor: pointer; font-family: var(--font-mono);
}
.btn-text:hover { color: var(--text-main); }
.btn-primary {
    background: var(--text-main); color: var(--bg-color); border: none;
    padding: 8px 16px; border-radius: 4px; font-weight: 700;
    cursor: pointer; font-family: var(--font-mono);
}
.btn-primary:hover { opacity: 0.9; }

/* --- Footer --- */
footer {
    margin-top: auto; padding-top: 0.5rem; text-align: center;
    color: var(--text-dim); font-size: 0.85rem; flex: 0 0 auto;
}
footer a { color: var(--text-dim); text-decoration: none; transition: all 0.2s ease; margin: 0 4px; }
footer a:hover { color: var(--text-main); text-decoration: underline; }

/* --- Mobile --- */
@media (max-width: 768px) {
    .board-container { flex-direction: column; overflow-x: hidden; overflow-y: auto; }
    .board-column { flex: 0 0 auto; width: 100%; max-height: none; margin-bottom: 16px; }
    .card-list { min-height: 80px; }
}