:root {
    --bg-color: #0b0f19;
    --surface-color: rgba(22, 28, 45, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.5);
    --event-color: #ec4899;
    --event-glow: rgba(236, 72, 153, 0.5);
    --font-heading: 'Inter', 'Noto Sans JP', sans-serif;
    --font-body: 'Inter', 'Noto Sans JP', sans-serif;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.15), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(236, 72, 153, 0.1), transparent 25%);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: var(--font-body);
    min-height: 100vh;
    display: flex;
    justify-content: center;
}

.app-container {
    width: 100%;
    max-width: 1200px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.app-header {
    text-align: center;
    padding: 2rem 0;
    animation: fadeInDown 0.8s ease-out;
}

.app-header h1 {
    font-size: 3rem;
    font-weight: 800;
    margin: 0;
    font-family: var(--font-heading);
    background: linear-gradient(135deg, #60a5fa, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.05em;
}

.app-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-top: 0.5rem;
}

.btn-refresh {
    margin-top: 1.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(59, 130, 246, 0.1);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 99px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
}

.btn-refresh:hover {
    background: rgba(59, 130, 246, 0.2);
    box-shadow: 0 0 15px var(--accent-glow);
    transform: translateY(-2px);
}

/* Glassmorphism Container */
.shadow-glass {
    background: var(--surface-color);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    padding: 2rem;
    animation: fadeInUp 0.8s ease-out;
}

/* FullCalendar Overrides for Dark Mode */
.fc {
    --fc-page-bg-color: transparent;
    --fc-neutral-bg-color: transparent;
    --fc-neutral-text-color: var(--text-secondary);
    --fc-border-color: rgba(255, 255, 255, 0.05);
    --fc-button-text-color: var(--text-primary);
    --fc-button-bg-color: rgba(255, 255, 255, 0.05);
    --fc-button-border-color: rgba(255, 255, 255, 0.1);
    --fc-button-hover-bg-color: rgba(255, 255, 255, 0.1);
    --fc-button-hover-border-color: rgba(255, 255, 255, 0.2);
    --fc-button-active-bg-color: rgba(59, 130, 246, 0.3);
    --fc-button-active-border-color: rgba(59, 130, 246, 0.5);
    --fc-event-bg-color: var(--event-color);
    --fc-event-border-color: transparent;
    --fc-event-text-color: #fff;
    --fc-today-bg-color: rgba(59, 130, 246, 0.08);
}

.fc-theme-standard th {
    padding: 10px 0;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--glass-border) !important;
}

.fc-daygrid-day-number {
    font-weight: 500;
    padding: 8px !important;
}

.fc-h-event {
    background: linear-gradient(135deg, #ec4899, #8b5cf6);
    border: none;
    border-radius: 6px;
    padding: 3px 6px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    transition: all 0.2s ease;
    cursor: pointer;
}

.fc-h-event:hover {
    transform: scale(1.02) translateY(-1px);
    box-shadow: 0 6px 15px var(--event-glow);
    z-index: 5;
}

.fc-event-title {
    font-weight: 600;
    font-size: 0.85rem;
}

.fc-toolbar-title {
    font-family: var(--font-heading);
    font-weight: 700 !important;
    font-size: 1.5rem !important;
    color: var(--text-primary);
}

.app-footer {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 2rem;
    padding-bottom: 2rem;
}

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 768px) {
    .app-container { padding: 1rem; }
    .shadow-glass { padding: 1rem; border-radius: 16px; }
    .fc-toolbar { flex-direction: column; gap: 1rem; }
}

/* Event Status Styles */
.status-finished, .status-cancelled {
    background: rgba(255, 255, 255, 0.05) !important;
    border-left: 4px solid var(--text-secondary) !important;
    opacity: 0.6;
    box-shadow: none !important;
}

.status-cancelled {
    text-decoration: line-through;
    border-left-color: #f43f5e !important;
}

.tag-upcoming {
    color: #34d399;
}

.tag-finished {
    color: #94a3b8;
}

.tag-cancelled {
    color: #f43f5e;
}

.event-tag {
    font-size: 0.75rem;
    margin-right: 4px;
}